ЦВЕТНАЯ ПОСЛЕДОВАТЕЛЬНАЯ ВСПЫШКА ДЛЯ ПОЛУЧЕНИЯ ЦИФРОВЫХ ИЗОБРАЖЕНИЙ

Изобретение относится к системе и способу получения цифровых изображений посредством использования цветной последовательной вспышки. Система содержит множество источников света, выполненных с возможностью освещения объекта, в котором, по меньшей мере, часть источников света выполнена с возможностью излучения света, имеющего длины волн различного диапазона длин волн; блок управления, выполненный с возможностью управления множеством источников света таким образом, что множество источников света освещают объект в последующее число периодов освещения, причем в, по меньшей мере, два из последующих периодов освещения объект освещается длинами волн различного диапазона длин волн; блок получения, выполненный с возможностью получения, по меньшей мере, четырех групп данных изображения объекта в, по меньшей мере, два периода освещения; и блок восстановления, выполненный с возможностью восстановления, по меньшей мере, четырех полученных групп данных изображения в группу данных изображения, по меньшей ...

СПОСОБ РЕГИСТРАЦИИ ГОНИОХРОМАТИЧЕСКИХ ХАРАКТЕРИСТИК ЛАКОКРАСОЧНОЙ ПЛЕНКИ

Изобретение предназначено для регистрации визуальных свойств поверхности с использованием устройства, содержащего устройство (3) формирования изображения для регистрации взаимодействия света (отражения или пропускания) с поверхностью, источник света (2) и область образца для размещения образца с лакокрасочной пленкой (6), которая подлежит исследованию. Устройство формирования изображения, источник света и область образца расположены таким образом, что в одном изображении, по меньшей мере, одну из характеристик поверхности можно регистрировать как функцию непрерывного диапазона углов между направлением освещения (7, 9) и направлением наблюдения (4, 5). Устройство формирования изображения представляет собой камеру на ПЗС. Техническим результатом является возможность осуществления оценки поверхности при одном цикле регистрации по непрерывному диапазону флоп-углов. 8 з.п. ф-лы, 8 ил.

УСТРОЙСТВО ДЛЯ БИОЛОГИЧЕСКИХ НАБЛЮДЕНИЙ

Изобретение относится к медицинской технике, а именно к устройствам для наблюдения биологических объектов. Устройство содержит осветительную секцию и секцию управления обработкой сигналов, которая управляет операциями секции съемки изображения и выдает снятый сигнал изображения в устройство отображения, фотоэлектрически преобразует свет, отраженный от живого организма, на основании облучающего света и формирует снятый сигнал изображения. Устройство также содержит секцию вычисления, которая формирует спектральный сигнал, соответствующий оптическому изображению в узкой полосе длин волн, исходя из снятого сигнала изображения, посредством обработки сигналов, секцию регулировки цвета, которая, при выдаче спектрального сигнала в устройство отображения, регулирует отличающийся цветовой тон для каждой из множества полос, формирующих спектральный сигнал, и секцию коррекции качества изображения, которая корректирует качество изображения в сигнале, подлежащем выдаче в устройство отображения. Для первого ...

КАЛИБРОВКА СИСТЕМЫ ФОРМИРОВАНИЯ ДИНАМИЧЕСКИХ ЦИФРОВЫХ ИЗОБРАЖЕНИЙ ДЛЯ ОБНАРУЖЕНИЯ ДЕФЕКТОВ В ПРОИЗВОДСТВЕННОМ ПОТОКЕ

Группа изобретений относится к анализу цифровых изображений. Способ калибровки системы формирования динамических цифровых изображений для обнаружения дефектов в производственном потоке на конвейере с множество изделий включает: помещение калибровочной цветной плитки на платформу, приподнятую над конвейером в поле обзора формирователя изображений, получение данных поглощения света калибровочным цветом с использованием формирователя изображений, расчет процессором интенсивности цветовой составляющей данных поглощения света калибровочным цветом, нормирование интенсивностей цветовой составляющей калибровочного цвета, перемещение платформы из поля обзора камеры, получение данных поглощения света продуктами с использованием формирователя изображений. Система калибровки системы формирования динамических цифровых изображений для обнаружения дефектов в производственном потоке, в которую входит: конвейерная установка, имеющая первую раму, занимающую по меньшей мере часть ширины конвейерной установки ...

СИСТЕМА ОБНАРУЖЕНИЯ ЛАЗЕРНОГО ВОЗДЕЙСТВИЯ И ОПОВЕЩЕНИЯ О НЕМ

Изобретение относится к области обнаружения электромагнитных излучений, в частности лазерного. Система обнаружения лазерного воздействия и оповещения о нем пилота воздушного летательного аппарата содержит обнаруживающее устройство, выполненное с возможностью установки на воздушный летательный аппарат, имеющее оптическую подсистему, обнаруживающую подсистему и обрабатывающую подсистему для определения характеристик поступающего лазерного излучения и передачи оповещающего о лазере выходного сигнала. Выходной сигнал содержит спектральные характеристики лазерного излучения, тип соответствующих средств защиты глаз и местоположение источника лазерного излучения. Устройство обработки цифрового сигнала выполнено с возможностью определения азимута и угла места источника лазерного излучения. Способ обнаружения лазерного излучения включает обнаружение излучения, создание цифрового сигнала и обработку полученного сигнала. Обеспечивается надежное обнаружение и идентификация лазерного излучения. 2 н.

СПОСОБ И СИСТЕМА ОПРЕДЕЛЕНИЯ ГРУППЫ ЦВЕТА АЛМАЗОВ

Изобретение предоставляет систему и способ определения цвета алмаза. Технический результат – повышение точности определения цвета алмаза. Компьютеризированная система определения группы цвета алмаза включает в себя: устройство получения оптических изображений для получения одного или более оптических изображений по меньшей мере участка алмаза, одно или более оптических изображений получено под заданным углом по отношению к центральной оси алмаза, центральная ось проходит перпендикулярно площадке и через вершину павильона алмаза и в направлении к площадке, и при этом одно или более оптических изображений получено в среде, имеющей заданный постоянный уровень освещенности; предварительно обученную нейронную сеть для получения одного или более оптических изображений по меньшей мере участка алмаза от устройства получения оптических изображений и предоставление регрессионного значения, связанного с группой цвета упомянутого алмаза, на основе одного или более оптических изображений по меньшей ...

УСТРОЙСТВО ДЛЯ БИОЛОГИЧЕСКИХ НАБЛЮДЕНИЙ

... 1. Устройство для наблюдения биологических объектов, содержащее: ! осветительную секцию, которая излучает свет на живой организм, который является объектом, подлежащим исследованию; ! секцию съемки изображения, которая фотоэлектрически преобразует свет, отраженный от живого организма, на основании излучаемого света и формирует снятый сигнал изображения; и ! секцию управления обработкой сигналов, которая управляет операциями осветительной секции и/или секции съемки изображения и выдает снятый сигнал изображения в устройство отображения, при этом секция управления обработкой сигналов содержит: ! секцию формирования спектрального сигнала, которая формирует спектральный сигнал, соответствующий оптическому изображению в узкой полосе длин волн, исходя из снятого сигнала изображения, посредством обработки сигналов; ! секцию регулировки цвета, которая при выдаче спектрального сигнала в устройство отображения назначает отличающийся цветовой тон для каждой из множества полос, формирующих спектральный ...

ПОКАЗАТЕЛЬ ДЛЯ ОПРЕДЕЛЕНИЯ КАЧЕСТВА ЦВЕТА

УСТРОЙСТВО ДЛЯ РАЗЛИЧЕНИЯ ОБЪЕКТОВ, ПРЕИМУЩЕСТВЕННО СЕЛЬСКОХОЗЯЙСТВЕННЫХ РАСТЕНИЙ И СПОСОБ ОПРЕДЕЛЕНИЯ МЕСТОПОЛОЖЕНИЯ РАСТЕНИЯ

Устройство и способ предназначены для избирательного уничтожения сорняков при обработке возделываемых сельскохозяйственных культур. Для обеспечения избирательного уничтожения осуществляется высокоскоростная модуляция двух излучателей света 201, 202. Каждый излучатель испускает излучение с отличающейся длиной волны. Модуляция, реализуемая посредством включения и выключения одного излучателя, сдвинута по фазе приблизительно на 90по отношению к модуляции подсвечиваемого участка поверхности. Световые лучи 203, 204, формируемые излучателями, отражаются от растения 206 или почвы и принимаются фотоприемником. Поскольку растения имеют характерную спектральную отражательную способность в областях электромагнитного спектра, которую можно отличить от спектральной отражательной способности фона, относительные амплитуды отраженного излучения на двух длинах волн излучателей меняются в зависимости от того от растения или от почвы отражается излучение. Отношение излучений на двух длинах волн, принимаемых ...

СПОСОБ КОЛОРИМЕТРИЧЕСКОГО КОНТРОЛЯ ДЕТАЛИ

ЦВЕТНАЯ ПОСЛЕДОВАТЕЛЬНАЯ ВСПЫШКА ДЛЯ ПОЛУЧЕНИЯ ЦИФРОВЫХ ИЗОБРАЖЕНИЙ

... 1. Система (10) для обеспечения улучшенной визуализации объекта, содержащая ! множество источников света (11, 11а-11d), выполненных с возможностью освещения объекта (12), в котором, по меньшей мере, часть источников света (11, 11а-11d) выполнена с возможностью излучения света, имеющего длины волн (λ1-λ6) различного диапазона длин волн; ! блок (13) управления, выполненный с возможностью управления множеством источников света (11, 11а-11d) таким образом, что множество источников света (11, 11а-11d) освещают объект (12) в последующее число периодов освещения (Т1-Т6), причем в, по меньшей мере, два из последующих периодов освещения (Т1-Т6) объект (12) освещается длинами волн (λ1-λ6) различного диапазона длин волн; !блок (14) получения, выполненный с возможностью получения, по меньшей мере, четырех групп данных изображения (21а-21d) объекта (12) в, по меньшей мере, два периода освещения (Т1-Т6); и ! блок (15) восстановления, выполненный с возможностью восстановления, по меньшей мере, четырех ...

GERAET ZUR BERUEHRUNGSLOSEN, NUMERISCHEN BEWERTUNG DER FARBE ODER EINER FARBVERAENDERUNG EIENS GEGENSTANDES

Werkzeug zur Positionierung einer Abtastvorrichtung

Werkzeug zur Positionierung einer Abtastvorrichtung (2), die mit einem Spektrometer (7) versehen ist, wobei das Werkzeug (1; 31; 41; 51) umfasst: einen Träger (8), der eine Auflagezone aufweist, die zum Aufliegen auf einer Fläche (9) geeignet ist, ein Befestigungsmittel (10) zum Befestigen der Abtastvorrichtung (2) an dem Werkzeug (1; 31; 41; 51), wobei der Träger (8) so dimensioniert ist, dass er eine Betriebszone (23) unbedeckt zurücklässt, in der das Spektrometer (7) zur Aufnahme eines Bildes (3) bewegbar ist, das an einem Substrat (4) vorgesehen ist, so dass das Spektrometer (7) das Bild (3) aufnehmen kann, während der Träger (8) direkt auf dem Substrat (4) aufliegt, und wobei das Werkzeug (1; 31; 41; 51) ferner eine Sichtvorrichtung umfasst, die eine Videokamera (50) zum Aufzeichnen des Bildes (3) sowie eine Steuereinheit umfasst, die die Videokamera (50) steuert, wobei die Steuereinheit so programmiert ist, vorher festgelegte Punkte des Bildes (3), das von der Videokamera (50) aufgezeichnet ...

Automatic inspection of textile webs

The invention relates to a method and a circuit arrangement for automatic inspection of plane fabric webs by means of a parallel arrangement of colour-area cameras. The inspection is based on colour-defect recognition carried out in real time, at the same time as local structural-defect recognition carried out in real time, and on 2-dimensional image evaluation initiated in the event of unreliable recognition results and no longer carried out in real time. Colour-defect recognition is based on a classification carried out by means of a colour-feature memory, and structural-defect recognition makes use of a cyclically written transient-image memory for the more accurate 2-dimensional grey-value evaluation in the event of defects recognised unreliably in the local region.

Wellenlängenmesser und zugehöriges Verfahren

Allgemein werden ein Wellenlängenmesser, ein zugehöriges Verfahren und ein zugehöriges System beschrieben. Bei einem Beispiel weist eine Vorrichtung Folgendes auf: eine Fotodiode zum Empfangen eines optischen Signals und zum Erzeugen eines Fotostroms beim Empfangen des optischen Signals, wobei die Fotodiode eine Absorptionskante hat, die im Wesentlichen auf ein Band von Wellenlängen ausgerichtet ist, wobei sich die Absorptionskante zu längeren Wellenlängen hin verschiebt, wenn eine Sperrvorspannung an die Fotodiode angelegt wird; und mit der Fotodiode verbundene Steuerelektronik zum Anlegen mindestens einer ersten Sperrvorspannung und einer zweiten Sperrvorspannung an die Fotodiode, wobei ein Verhältnis eines ersten Messwerts des Fotostroms bei der ersten Sperrvorspannung zu einem zweiten Messwert des Fotostroms bei der zweiten Sperrvorspannung Informationen zu der Wellenlänge des optischen Signals liefert.

VORRICHTUNG ZUR KOLORIMETRISCHEN ANALYSE VON GEGENSTÄNDEN WIE FRÜCHTEN ODER GEMÜSE

Sensoranordnung mit einem siliziumbasierten optischen Sensor und einem Substrat für funktionelle Schichtsysteme

Die Erfindung betrifft eine Sensoranordnung mit einem siliziumbasierten optischen Sensor, insbesondere Farbsensoren für kolorimetrische Anwendungen. Die Aufgabe, eine neue Möglichkeit zur Unterdrückung der Interferenzrippel von optischen Sensoren, die bei der Hinzufügung von Substraten mit optisch funktionellen Beschichtungen entstehen, zu finden, die eine einfache Herstellung ohne komplizierte Anpassungsschichten gestattet, wird erfindungsgemäß gelöst, indem die Sensorpassivierung aus einer Kombination von einer dünnen SiO2-Schicht (12) im Bereich von 5 bis 10 nm und einer entspiegelungsangepassten Si3N4-Schicht (13) zusammengesetzt ist, über der Sensorpassivierung ein mindestens ein optisches Filter (21) tragendes Substrat (2) angeordnet ist, das mit dem Sensor (1) mittels eines Klebstoffs (31) verbunden ist und zwischen Sensorfläche (11) und zugeordnetem optischem Filter einen Zwischenraum (3) für eine optische Schicht (32; 33) mit niedrigem Brechungsindex (n2) ausbildet, die eine Höhenvariation ...

Verfahren zur Erkennung von Farbmustern auf Oberflächen

Ein Verfahren zur Erkennung von Farbmustern auf Oberflächen mit mindestens einem auf die Oberfläche gerichteten Farbsensor weist die Schritte auf von: DOLLAR A a) Bewegen der Oberfläche relativ zu dem Farbsensor; DOLLAR A b) kontinuierliches Messen und Aufzeichnen der Sensorsignale; DOLLAR A c) Ermitteln von Kenngrößen aus Zeitintervallen der Sensorsignale; DOLLAR A d) Vergleichen der Kenngrößen mit gespeicherten Größen für definierte Farbmuster und DOLLAR A e) Erkennen eines definierten Farbmusters, wenn die Kenngrößen ähnlich zu den gespeicherten Größen sind.

Verfahren zum Bereitstellen von Daten im Zusammenhang mit der Mundhöhle

Web-based calibration system for monitors of smartphones, has commercially available smartphone camera module and arithmetic unit comparing resulting actual values with setpoint value and transmitting corrected setting data to monitor

The system has a commercially available smartphone camera module and a memory containing latest data on color profiles of screens, smartphones, printers and reference images. An arithmetic unit has a smartphone recorded reference image of a monitor corresponding to maximum design color profiles of corrected smartphone camera, and compares resulting actual values with a setpoint value, and transmits the corrected setting data to a monitor. The corrected setting data for the monitor is transmitted on smartphones. An independent claim is also included for a calibrating method for monitors.

Optischer Sensor und Verfahren zur optischen Abstands- und/oder Farbmessung

Optischer Sensor zur Abstandsmessung mit einer Beleuchtungseinheit (12), mit der Licht emittierbar ist, das unterschiedliche Wellenlängen enthält, mit einer ersten Optik (17), mit der das Licht wellenlängenabhängig in Brennpunkte in unterschiedlichem Abstand von der Optik fokussierbar und von einem Messobjekt remittiertes Licht erfassbar ist, mit Mitteln, um von der ersten Optik (17) erfasstes Licht aufzuteilen in zumindest einen ersten optischen Messstrahlengang, der das Licht so über eine Detektionsblende (28) auf einen ersten Empfänger (31) lenkt, dass mit diesem ein objektabstandsabhängiges Wellenlängenspektrum erfassbar wird, und in zumindest einen zweiten optischen Messstrahlengang, der das Licht auf einen zweiten Empfänger (35) zur Erfassung einer spektralen Reflexion lenkt, mit einer Berechnungseinheit, um Messwerte des objektabstandsabhängigen Wellenlängenspektrums mit korrespondierenden Messwerten der spektralen Reflexion zu korrigieren und aus den korrigierten Werten einen Abstandswert ...

A handheld device for measuring the colour properties of objects

A handheld device is disclosed for measuring the colour properties of objects. An internal CPU 6 via control signals 7 causes emissive light source 1 (a LCD and/or one or more LEDs) to generate a sequence of specified spectra. The emitted light is transmitted via light guide 3 and is incident on object 5 to be measured. Reflected or transmitted light from the object is transmitted via light guide 4 to an internal digital camera 2 such as a CCD camera. The data 8 is passed to internal CPU 6 where calculations are performed on the measurements. Optionally the CPU 6 passes the data via internet connection 9 to an external CPU 10 to enable further calculations to be performed. The design allows for use of an existing handheld device such as a mobile phone to be used as a convenient way of providing the included LCD, camera, CPU and optional internet connection.

Identification of faulty sensing elements in sensing element arrays

A sensing element array 10 comprises a plurality of sensing elements 11 such as infrared sensing elements. The sensing elements are connected to a processing unit 12 operable to process the signals output by the sensing elements 11 and a motion sensor 13 operable to determine whether or not the array 10 is in motion and output a signal indicative thereof to the processing unit 12. The processing unit 12 determines whether the motion detected is suitable for identifying faulty sensing elements. If it is determined that the motion detected is suitable, the processing unit 12 implements a faulty sensing element identification algorithm. The motion sensor may comprise a compass, gyroscope, inclinometer, position sensor or accelerometer. The array 10 may be provided with a memory unit 14 in which can be stored the location of faulty sensing elements. An imaging device (20, Fig. 2) may incorporate the array 10.

Colorimeter

... 1,105,192. Photo-electric colorimeter. E.I. DU FONT DE NEMOURS & CO. Feb. 25, 1966 [May 3, 1965], No.8432/66. Heading G1A. In a colorimeter for measuring the colour characteristics of light scattered from the surface of material, particularly a moving web of material, one or more photo-electric cells are mounted at one end of a tube, open at the other end to the scattered light and equipped with baffles to prevent spurious light reaching the photo-cell(s), and one or more filters to control the spectral distribution of light reaching the photo-cells. The apparatus is suitable for colorimetry of moving textiles or sheets, including porous materials, and can be used to investigate surface smoothness and control colour coating processes. A filament lamp 10 is mounted in a box 11 and a collimated beam of light filtered of infrared wavelengths, directed at the material 15. Diffusely reflected light is received by the cell or cells through baffled tube 21 which is tilted to avoid specularly reflected ...

Analytic methods of tissue evaluation

Method and apparatus for representing and searching for colour images

Color measurement engine with uv filtered illumination

A color measurement instrument includes a housing and illuminators, a two-dimensional photodetector array, and an optics system within the housing. A UV filter wheel closes the housing to prevent contaminants from entering the housing. The filter wheel supports UV filters and non-UV glass that can be selectively aligned with the illuminators. The photodetectors can be read in parallel, and each photodetector includes a unique spectral filter. The optics system delivers light from the sample target area equally to each of the photodetectors.

Improvements in or relating to a tristimulus difference computer

... 970,129. Analogue computers. H. R. DAVIDSON. Oct. 19,1961 [June 1,1961], No. 37565/61. Heading G4G. A computer for determining the amounts of colourants in a mixture required to match a colour standard where there is a difference (#K/S i ) (where K is coefficient of absorption and S i the coefficient of scatter) between the spectrophometric curves of the colour standard and the mixture, includes means for producing colourant voltages corresponding to values of #K/S i for different wavelengths i which are then converted into voltages representing the difference in tristimulus values #X, #Y, #Z between the tristimulus values X, Y, Z of the colour standard and those of the mixture, manual settings in the computer being adjusted until #X, #Y, #Z are zero which corresponds to the condition of best match, when the amounts of colourants for the mixture can be determined from the settings of the computer. The following equations are given in the Specification for X, Y, Z, where E c is the spectral ...

Defective pixel fixing

Methods of fixing defective pixels in image data are described wherein a predicted value for a target pixel in a target colour channel is determined based on the values of nearby pixels, wherein the target pixel value can be selectively replaced with the predicted value. The predicted value is determined by determining a candidate value for each of a plurality of directions using: (i) a gradient of pixel values in one colour channel along the respective direction and (ii) a pixel value of a pixel in the target colour channel which is aligned with the target pixel along the respective direction. Using gradients can provide better predicted values than averaging nearby pixel values since rates of change of pixel values are taken into account. The median of the candidate values may be used in order to reduce the impact of other defective pixels on the predicted value for the target pixel.

An optical inspection system

An optical inspection system including: an optical sensor head 100 comprising an image capturing device 160 for capturing images of an object 200 to be inspected; and an integrated lighting system comprising a plurality of light sources 180 for illuminating the field of view of the image capturing device, the plurality of light sources comprising at least one ultraviolet (UV) light source and at least one visible light source. The optical sensor head 100 may be integrated into a handheld device or a workstation which can be part of a production line. The sensor head can either move relative to a stationary object or the object can move relative to the sensor head. The optical inspection system can be provided with more than one imaging head, which may be used to obtain different perspectives of the objects being imaged. The inspection system can be provided with a cover 210, which may be made from a flexible material in order to protect the user from UV light. The light sources may be LEDs ...

MONITORING COLOUR OF PRINTED WEB

Color Measurement engine with parallel detectors

Photoelectric measuring devices

REFLECTANCE MEASURING METHOD

... 1530947 Measuring reflectance INTERNATIONAL BUSINESS MACHINES CORP 6 Oct 1976 [10 Oct 1975] 41548/76 Heading G1A The reflectance of a test sample 28 in the blackened chamber 13 of a spectrophotometer is calculated from its reflected light output and that of a standard white sample, corrections being included for reflection from the chamber walls, wall reflectance for this purpose being calculated from the standard white output and the output of a mirror sample. The white sample may be a ceramic plaque which has been previously compared with a primary standard of barium sulphate to obtain a scaling factor. To compensate for the dark current of the photo-multiplier detector 24 and for the reflectance of the glass plate 27 covering the test sample the output of a black ceramic plaque as sample is measured.

Process and measuring device of the brightness of a color.

VERFAHREN UND VORRICHTUNG ZUR BESTIMMUNG VON ZAHNFARBEN

DEVICE AND PROCEDURE FOR THE LIGHT ANALYSIS

PORTABLE SPEKTRALPHOTOMETER

Vorrichtung zur Klassifizierung von Objekten

Eine Vorrichtung (1) zum Klassifizieren von Objekten (20) mit einer spektroskopischen Sensoreinheit (2) umfasst eine erste Strahlungsquelle (3), die eine erste Strahlung (S1) mit einem definierten ersten Spektralverlauf innerhalb eines vorgegebenen Wellenlängenbereichs abstrahlt. Die spektroskopische Sensoreinheit (2) ist mit ihrem Blickfeld (2b) auf die erste Strahlung (S1) gerichtet. Zu klassifizierende Objekte (20) sind in einen im Blickfeld (2b) liegenden Messbereich (6) zwischen der spektroskopischen Sensoreinheit (2) und der ersten Strahlungsquelle (3) bringbar. Die spektrale Sensoreinheit (2) erkennt die erste Strahlung (S1) als der ersten Strahlungsquelle (3) zuzuordnendes Hintergrundsignal, wertet in Bezug auf durch das Objekt (20) verursachte Änderungen des spektralen Verlaufs (S1) durch spektrale Zerlegung aus und nimmt anhand der Auswertung eine Klassifizierung (24) des Objekts (20) vor.

GERÄT ZUR FARBBESTIMMUNG VON ZÄHNEN

The apparatus is used to determine the colour of a tooth (12) in the mouth of a patient. The apparatus has a light source (10) with a visible light spectrum. A first light conductor (20) conveys the light from the light source (10) to the tooth to be examined. A second optical conductor (24) has an end joined to the end of the first conductor (20) to receive light reflected from the surface of the tooth. Both conductors (20,24) are covered by a common flexible sleeve (18). An analysis device (16) is provided to analyse the spectrum of the reflected light. An elastic cuff (22) is arranged at the end (19) of the conductors (20,24) and the sleeve (18) nearest the tooth to shield the tooth (12) from stray light.

DEVICE FOR MEASURING COLOR, GLOSS AND RIPPLES AT PAINTED FREE FORMING SURFACES

A PORTABLE SPECTROPHOTOMETER

Apparatus and method for capturing and displaying color

METHOD OF DETERMINING TRISTIMULUS VALUES FOR RGB LED ILLUMINANTS

A METHOD OF REFLECTION MEASUREMENT

Hair color measurement and treatment

System and method for simultaneous measurement of turbidity, color and chlorine content of a sample of a liquid

A method for measuring turbidity, chlorine content and color of a liquid, the method including retaining, from a continuous flow of the liquid, a sample volume of the liquid, and at least nearly simultaneously executing at least two of detecting illumination from the sample volume of liquid by at least a first detector operable for detecting illumination from the sample volume of liquid at a 90-degree angle with respect to an illumination beam generated by an illuminator and impinging on the sample volume of liquid, thereby measuring a turbidity of the sample volume of liquid.

Colorimeter and assay device

Colour inspection system

Apparatus and method for measuring optical characteristics of teeth

APPARATUS FOR TAKING IN SITU COLORIMETRIC INFORMATION, PARTICULARLY ON A TOOTH IN A MOUTH

Color sensor

COLOUR RECOGNITION SYSTEM

COLOUR MEASURING DEVICES

PROCESS COLORIMETER

A colorimeter for measuring color of an object, in particular for measuring the color of liquids such as paints in a process stream. In the colorimeter, a single analytical light beam, with its blue and red intensity ratio controlled through a feedback loop, is directed to a sample whose color is being measured. A portion of the analytical light beam is reflected from the sample into a grating monochromator which disperses the light beam into its spectra. A detector array is attached to the monochromator which converts the spectra of the light beam into discrete signals which are then multiplexed with instrument status and reference color signals into an A/D converter. The output of the A/D converter is then fed directly to a computer programmed to directly provide standard color values.

BIOLOGICAL OBSERVATION APPARATUS

A biometric instrument comprises an illuminating unit for illuminating an organism, i.e., a subject, an imaging unit for photoelectrically converting the light of the illuminating light reflected from the organism and generating an imaging signal, and a signal processing control unit for controlling the operation of the imaging section and outputting the imaging signal to a display. The biometric instrument is characterized in that the signal processing control unit includes a spectral signal generating section for generating a spectral signal corresponding to an image in an optical wavelength narrow band from the imaging signal by signal processing, a color adjusting section for assigning color tones different with the bands where the spectral signal is formed when the spectral signal is outputted to the display, and an image quality adjusting section for adjusting the image quality of the signal outputted to the display, or the other signal processing sections than at least the spectral ...

TEXTILE COLOR ANALYZER CALIBRATION

INFORMATION SEARCH SYSTEM, INFORMATION SEARCH METHOD, AND INFORMATION SEARCH PROGRAM

... [Problem] To automatically retrieve detection algorithm information for acquiring necessary spectrum data in discriminating a target event from a subject. [Solution] In retrieving necessary detection algorithm information in discriminating a target event from an imaged subject 10, input of information relating to the target event of the subject to be newly discriminated is received, reference is made to a first degree of linkage, of at least three stages, between detection algorithm information and each target event of the subject stored in an algorithm database 3; and at least one detection algorithm information item is retrieved on the basis of the information relating to the input target event.

METHOD FOR DERIVING CALCULATION EQUATION FOR CALCULATING COATING FILM IRREGULARITY AND METHOD FOR DIGITIZING COATING FILM IRREGULARITY

A method for deriving a calculation equation for accurately calculating an irregularity of a coating film by using data on the surface of the object coating film and a color value of the coating film and a method for digitizing a coating film irregularity by using the coating film irregularity calculation equation derived from the deriving method. The coating film irregularity calculation equation is derived by fabricating a coated sheet for deriving the calculation equation and evaluating the coating (S10), calculating a value in substitution for the degree of sparkle (S11), measuring a color value (S12), and deriving the calculation equation (S13). The calculation (S11) of the value in substitution for the degree of sparkle includes image capture (S11a1) and image processing (S11a2). The measurement (S12) of the color value includes colorimetry (S121) and calculation (S122) of color values.

HAIR COLOR MEASUREMENT AND TREATMENT

... ²²²A method to change the color of hair. The method includes measuring an initial ²reflectance spectrum [Fig 1a (10)] of a sample of the hair and analyzing a ²contribution of a plurality of hair factors to the initial reflectance ²spectrum. The method also includes calculating a hair treatment based on ²another reflectance spectrum. A system to measure a reflectance spectrum of a ²sample includes an integrating sphere (12) having a sampling port (14) and an ²inner surface (16) and a window disposed (18) near the sampling port. The ²window is configured for being placed in close contact with the sample. The ²system also includes a light source (20) configured to project light onto the ²sample via the window and a light detector (22) configured to analyze light ²reflected from the inner surface (16) to produce the reflectance spectrum of ²the sample.² ...

COLOR SENSOR

Devices, systems, and methods for measuring the color of a sample are disclosed. The exemplary device may have one or more light emitting diodes for directing a beam of ultraviolet light onto the sample and may also have one or more light emitting diodes for directing a beam of visible light onto the sample. The exemplary device may have a component for controlling the timing and power of operation of each light emitting diode. The exemplary device may also have at least one light detector for receiving the beam of light reflected from or transmitted through the sample and measuring at least one wavelength band of the received light. The exemplary device may further have a measurement analyzer for determining the color of the sample based on the measured light. The color may be determined for a specified illuminator incorporating effects of fluorescence.

IMAGING APPARATUS AND METHOD

An imaging apparatus and method are provided for improving discrimination between parts of a scene enabling enhancement of an object in the scene. A camera unit (12) is arranged to capture first and second images from the scene (8) in first and second distinct and spectrally spaced apart wavebands. An image processing unit (14) processes the images so captured and processes polarimetric information in the images to enable better discrimination between parts of the scene. An image of the scene, including a graphical display of the polarimetric information, may be displayed on a visual display unit (16) thus enhancing an object in the scene for viewing by a user. Correlation parameters indicating, possibly on a pixel-by-pixel basis, the correlation between the actual image intensity (30) at each angle of polarisation and a modelled expected image intensity may be used to enhance the visibility of an object.

DEVICE FOR OFFLINE INSPECTION AND COLOR MEASUREMENT OF PRINTED SHEETS FOR THE PRODUCTION OF BANKNOTES AND LIKE PRINTED SECURITIES

There is described a device (1) for offline inspection and color measurement of printed sheets for the production of banknotes and like printed securities, comprising (i) a console (10) having a supporting surface (10a) for supporting a sample printed sheet (S), (ii) a multipurpose measuring apparatus (20), which multipurpose measuring apparatus (20) comprises multiple sensors (22, 23) including at least one camera (22) for taking images of selected portions of the sample printed sheet (S) and a color measurement sensor (23) for performing spectrophotometric, colorimetric, and/or densitometric measurements at selected locations on the sample printed sheet (S), (iii) a display (30) for displaying the images taken by the camera (22) and the measurements performed by the color measurement sensor (23), and (iv) a control and processing unit (40) coupled to the multipurpose measuring apparatus (20) and the display (30). The device (1) comprises a moveable sensor beam (200) housing the multipurpose ...

DEVICE FOR OFFLINE INSPECTION AND COLOR MEASUREMENT OF PRINTED SHEETS FOR THE PRODUCTION OF BANKNOTES AND LIKE PRINTED SECURITIES

To provide a device for offline inspection and color measurement of printed sheets for production of printed securities such as banknotes, a device is suggested comprising (i) a console (10) having a supporting surface (10a) for supporting a sample printed sheet, (ii) a multipurpose measuring apparatus (20) comprising at least one camera (22) for taking images of selected portions of the sample printed sheet, and a color measurement sensor (23) for performing spectrophotometric, colorimetric, and/or densitometric measurement at selected locations on the sample printed sheet, (iii) a display (30) for displaying the images taken by the camera (22) and the measurements performed by the color measurement sensor (23), and (iv) a control and processing unit coupled to the multipurpose measuring apparatus (20) and the display (30).

APPARATUS, AND ASSOCIATED METHOD, FOR FACILITATING WHITE BALANCING OF AN IMAGE

An apparatus, and an associated method, facilitates selection of white balancing to adjust the color cast of a captured image. A quantum dot element is positioned to receive incident light associated with a scene forming an image that is to be captured. Incident light upon the quantum dot element causes photonic emissions that are detected and converted into electrical form. The electrical representations of the photonic images are used to measure or determine a color ratio. The value of the color ratio is utilized to select white balancing of a captured image, captured either prior to, concurrent with, or subsequent to, the color-ratio determination.

INDUSTRIAL COLORIMETER HAVING LIGHT INTENSITY COMPENSATION MEANS

A colorimeter provides compensation for changes in the color signature of an object due to lamp aging, stand off distance and view angle changes. The colorimeter senses and stores values indicative of a sample object. In use, the colorimeter senses and creates values indicative of an object. The colorimeter includes a processor which then creates an average ratio wherein the stored values and corresponding sensed values are placed in a ratio, all of the ratios are then summed, and the total is divided by the number of values. Finally, the processor compares the sensed values with corresponding stored values, wherein one of the two values is adjusted by the average ratio.

PHOTOMETRIC PROCESS AND COMPUTER CONTROLLED PHOTOMETER

... 9-18720/A/GTF 562 PHOTOMETRIC PROCESS AND COMPUTER CONTROLLED PHOTOMETER A computer controlled spectrophotometer is equipped with a serial interface to which a bar code reader can be connected. Using the bar code reader, calibration and configuration data or functional commands for the spectrophotometer may be read from a data carrier and transmitted to the computer in the spectrophotometer.

SCANNING COLORIMETER

A colorimeter for reading color bars (403, 404) of printed sheets (401) or the like includes a longitudinally extending base (400) including a paper stop (442) along which a sheet to be tested for color may be positioned. An autonomously operating colorimeter head (410) is moved along the base in a direction parallel to the edge of the sheet by means of an electric motor (600) mounted on the base and driving an helical thread lead screw (418) engaging an X-axis carriage supporting the head. The head is moved by operation of the lead screw in a direction parallel to the edge of the sheet, referred to as the direction of the X-axis. The head includes an electric motor and a Y-axis transport supporting an optics unit (510). The optics unit is moved within the head in a direction parallel to a Y-axis, extending perpendicularly to the X-axis.

COLOUR DETECTION METHOD

A method of detecting the colour of an article such as gambling chips to permit the different colour chips to be sorted. The method comprises sensing the colour of the article at a plurality of places thereon by moving the article relative to colour sensing means, and integrating the colour measured with respect to time.

COLOR SENSOR

A sensor (10) for measuring reflective, transmissive, or self-luminous samples, comprises a plurality of light sources (18), where each of the ligh t sources emit light of a substantially different wavelength band spaced in th e visible spectrum; a reference channel photodetector (20); a sample channel photodectector (22); an optical cap (26) adapted to direct a first portion o f the light emitted by each of the light sources to the reference channel photodetector (20); a reflector cone for directing a second portion of the light emitted by each of the light sources to the sample; and a receptor pie ce (36) for directing the diffuse portion of the light reflected from the sampl e to the sample channel photodetector (22). The sensor (10) is preferably incorporated into a hand-held "mouse" device, which includes an area on its top surface for seating an index finger of the human hand.

Procédé de mesure de la composition spectrale du rayonnement lumineux diffusé par une surface colorée opaque, et appareil pour la mise en oeuvre de ce procédé

Einrichtung zum Messen von Farbreizwerten

Farbmessgerät, insbesondere zur Bestimmung der Farbanteile eines Farbdrucks für die Farbabstimmung von Farbdrucken mit einer Farbdruckvorlage

Colorimètre

Verfahren und Vorrichtung zur maschinellen Messung der Farbdichte von auf eine laufende Bahn aufgebrachten Druckfarben, insbesondere beim Mehrfarben-Tiefdruck

SWITCHING CONFIGURATION FOR RECOGNIZING COLORS.

METHOD AND APPARATUS FOR MEASURING THE BRIGHTNESS OF A COLOR.

PORTABLE SPECTROPHOTOMETER.

Printing machine ink concentration measuring device - uses opto-electronically measured optical density of thin ink soln. layer using light absorption and dispersion

The ink concn. measuring device uses a light source and a photodetector for measuring the optical density of a thin layer of the ink soln. The ink soln is within a measuring cell (1), and the optical density is used to calculate the corresponding ink concn. The optical density of the ink and the carrier soln. can be measured via respective optical absorption and dispersion measurements, to calculate the ink concn. using the difference between the obtained measurements. USE/ADVANTAGE - For monitoring ink soln. concn. in photogravure and flexo printing machine.

Procedure for the evaluation of a picture of a pre-determined cutout of a press product.

Bei einem Verfahren zur Auswertung eines Bildes von einem vorbestimmten Ausschnitt eines Druckerzeugnisses wird das Bild von einer Kamera mit einem elektronischen Flächenbildsensor aufgenommen und von einer elektronischen Auswertungseinheit ausgelesen und verarbeitet. Dabei werden von ersten vorbestimmten Feldern innerhalb des Ausschnitts aufgenommene Intensitätssignale rechnerisch mit Referenzdatenwerten verknüpft, welche ein Mass für die Intensität der Lichtremission von unbedruckten Bereichen des Druckerzeugnisses darstellen. Zu Beginn wird ein Bild von einer Weissreferenz aufgenommen und es werden von den Intensitätssignalen dieses Bildes Grundreferenzdaten für den gesamten Ausschnitt abgeleitet. Bei jeder Auswertung eines Bildes des vorbestimmten Ausschnitts werden aus von zweiten vorbestimmten Feldern innerhalb des Ausschnitts aufgenommenen Intensitätssignalen Korrekturdaten abgeleitet. Vor der rechnerischen Verknüpfung der von den ersten vorbestimmten Feldern innerhalb des vorbestimmten ...

Apparatus for determining colour of teeth

The apparatus is used to determine the colour of a tooth (12) in the mouth of a patient. The apparatus has a light source (10) with a visible light spectrum. A first light conductor (20) conveys the light from the light source (10) to the tooth to be examined. A second optical conductor (24) has an end joined to the end of the first conductor (20) to receive light reflected from the surface of the tooth. Both conductors (20,24) are covered by a common flexible sleeve (18). An analysis device (16) is provided to analyse the spectrum of the reflected light. An elastic cuff (22) is arranged at the end (19) of the conductors (20,24) and the sleeve (18) nearest the tooth to shield the tooth (12) from stray light.

Procedure and device for the regulation of tooth colors.

Washing machine with discoloration sensor.

Method and system for testing the color condition of preforms.

Die vorliegende Erfindung bezieht sich auf ein Verfahren und das entsprechende System zur Prüfung der Farbbeschaffenheit von Preforms (2), welche zur Herstellung von Behältern, insbesondere Getränkeflaschen, vorgesehen sind, wobei die Preforms (2) durch eine Transporteinrichtung (3) in ein Aufnahmegefäss (4) transportiert werden, und wobei mittels einer Bildaufnahmeeinrichtung (6) ein Abbild von den Preforms (2) gemacht und an eine Verarbeitungseinrichtung zur Prüfung übermittelt wird, in welchem die Preforms (2) beim Verlassen der Transporteinrichtung (3) ungeordnet in das Aufnahmegefäss (4) eingeführt werden, wobei das Abbild zwischen dem Verlassen der Transporteinrichtung (3) und dem Aufnahmegefäss (4) gemacht wird, und in welchem das Abbild durch die Verarbeitungseinrichtung derart verarbeitet wird, dass Farbbeschaffenheit der Preforms (2) überprüft und dass fehlerhafte Preforms (2) entdeckt werden.

Variable wavelength interference filter, optical module, and optical analysis device

The present invention provides a variable wavelength INTERFERENCE FILTER, an OPTICAL MODULE, AND an OPTICAL ANALYSIS DEVICE. An etalon is provided with a fixed substrate and a movable substrate opposed to the fixed substrate. The fixed substrate is provided with a first bonding surface to be bonded to the movable substrate via a bonding film and a first electrode surface on which a part of the first electrode is formed. The movable substrate is provided with a second bonding surface to be bonded to the first bonding surface via the bonding film and a second electrode surface on which a part of the second electrode is formed. In the state in which the fixed substrate and the movable substrate are bonded to each other with the bonding film, the first electrode formed on the first electrode surface and the second electrode formed on the second electrode surface have contact with each other.

Ambient light compensation sensor and procedure

The present invention relates to a solid-state based light source, a corresponding circuitry and a method of emitting light, including one or more light source elements for generating light, a first sensor for receiving light emitted by the light source elements and ambient light and for generating a first sensor signal (S1) representing the received light, a second sensor for only receiving ambient light and for generating a second sensor signal (S2) representing the received ambient light. Moreover, the solid-state based light source comprises a control unit for receiving the first and the second sensor signals (S1, S2) and for generating control signals (Sc) for controlling the light source elements, based on the difference between the first and the second sensor signals (S1, S2), to compensate for the influence of the ambient light.

Solution color sensor

Measuring method and apparatus using color images

Process for producing and delivering matching color coating and use thereof

The present invention is directed to a process for repairing one or more defects of a target coating of a vehicle. The process can repair target coatings at a repair facility using matching coating compositions provided from a supply center, where the matching coating compositions can be produced according to target repair data transmitted from one or more repair facilities to the supply center. The present invention is also directed to a system for repairing one or more defects of a target coating of a vehicle. The system can comprise one or more supply centers and one or more repair facilities.

Dental shade mapping

CAPTEUR SENSIBLE A LA COULEUR

LE CAPTEUR SENSIBLE A LA COULEUR EST CONSTITUE PAR UN ELEMENT D'ECLAIRAGE 12 AVEC REFLECTEUR, FIXE A UN BLOC 1 SENSIBLE A LA LUMIERE QUI COMPREND UN ELEMENT SEPARATEUR DE SPECTRES 3 ET, RELIES A LUI OPTIQUEMENT, UN PHOTORECEPTEUR 5 POUR LA PARTIE VISIBLE DU SPECTRE ET UN PHOTORECEPTEUR 4 POUR LA PARTIE INFRAROUGE PROCHE DU SPECTRE DU SIGNAL LUMINEUX REFLECHI PAR LES OBJETS DANS LA ZONE D'IDENTIFICATION, DONT LES SORTIES SONT RELIEES PAR DES AMPLIFICATEURS CORRESPONDANTS LINEAIRES 7, 8 AUX ENTREES D'UN BLOC DE COMPARAISON 11. LA CONNEXION DE L'AMPLIFICATEUR LINEAIRE 8 DANS LE CANAL DE LA PARTIE VISIBLE DU SPECTRE, A L'ENTREE CORRESPONDANTE DU BLOC DE COMPARAISON 11 EST REALISEE PAR UN SOMMATEUR 9 DONT LA SECONDE ENTREE EST RELIEE A UNE SOURCE DE TENSION CONSTANTE 10. LA SORTIE DU BLOC DE COMPARAISON 11 CONSTITUE LA SORTIE DU CAPTEUR SENSIBLE A LA COULEUR. CE CAPTEUR EST UTILISE LORS DE L'IDENTIFICATION DE PLANTES DANS L'AGRICULTURE.

METHOD AND DEVICE FOR DETERMINING THE COLOR, ESPECIALLY A DENTAL PROSTHESIS

PROCESS OF CALIBRATION Of a SPECTROPHOTOMETER

Analyseur de couleur.

L'invention concerne un analyseur de couleur pour analyser de façon continue la couleur d'un produit circulant sur un convoyeur, dans une conduite, ou à l'air libre, et présentant une teinte dominante déterminée. Selon l'invention, l'analyseur comprend une caméra vidéo agencée pour balayer une zone (7) du produit et délivrer en continu trois signaux vidéo primaires correspondant à trois couleurs primaires du produit, des moyens de prélèvement (14) pour prélever en continu lesdits signaux vidéo primaires, et des moyens de calcul (16) pour calculer en continu, à partir desdits signaux vidéo primaires, une valeur d'intensité de ladite teinte dominante. Application au contrôle de la fabrication, du traitement ou du transport de tout produit solide, liquide ou gazeux.

Apparatus for continuously determining colorimetric parameters

L'appareil comprend une caméra couleur vidéo (1) dont l'objectif (2) appréhende une surface (3) dans laquelle se trouve le produit à contrôler (4), disposé sur un support de convoyage (5). La sortie (8) de caméra (1) est reliée à un ensemble électronique qui comprend: un sous-ensemble de fenêtrage (9) sélectionnant une fenêtre de travail (W) dans l'image vue par la caméra (1); un sous-ensemble de comparaison (10) qui compare les signaux représentatifs des couleurs primaires (rouge, vert, bleu), issus de la caméra (1), à des seuils pour distinguer le produit (4) de son fond et de ses reflets; un sous-ensemble d'intégration (11) qui quantifie les signaux représentatifs des couleurs primaires, en tenant compte des signaux d'inhibition délivrés par les sous-ensembles précédents; un système numérique de conversion et de traitement (12). Application: détermination en continu de paramètres colorimétriques, ainsi que de la surface pour des produits solides, liquides ou gazeux, notamment dans le ...

IMPROVED MULTISPECTRAL SENSING DEVICE.

IMPROVED MULTISPECTRAL SENSING DEVICE.

Le dispositif de détection multispectrale comporte des premier et deuxième photodétecteurs (1a, 1b) sensibles à deux longueurs d'onde différentes. Les deux photodétecteurs sont connectés à deux condensateurs d'intégration de deux circuits de lecture différents. Deux circuits de remise à zéro (5a, 5b) sont configurés de manière à initialiser séparément les deux condensateurs d'intégration (3a, 3b). Un premier circuit de synchronisation (7a) est connecté au premier circuit de lecture (2a) et aux générateurs de signal de synchronisation et de signal d'horloge (8, 9). Le premier circuit de synchronisation (7a) est configuré de manière à ○ définir la trame par détection d'un front montant du signal de synchronisation (SYNC), ○ compter le nombre d'occurrences d'un front descendant du signal d'horloge (CLK), ○ initier ou arrêter une phase d'acquisition de donnée lorsque le nombre d'occurrences de fronts descendant est égal à une valeur seuil enregistrée dans un registre (10) du premier circuit ...

OPTICAL SYSTEM OF MEASUREMENT OF the COLORIMETRY Of an OBJECT

L'invention concerne un système de mesure de la colorimétrie d'objets comprenant une source d'éclairement (SO), un dispositif de détection (CA) fournissant des signaux électriques représentant l'image de la ou des dents éclairées. La source d'éclairement comporte au moins trois diodes électroluminescentes (DL1 à DL3) émettant des faisceaux lumineux de longueurs d'onde différentes et commandées séquentiellement. Une unité centrale (UC) reçoit, du dispositif de détection (CA), à chaque éclairement de l'objet, l'image de la lumière réfléchie et reçue par le dispositif de détection. L'unité de traitement calcule, pour chaque image, le niveau de chaque couleur et détermine, pour différents points, des coordonnées colorimétriques standards. Applications: Systèmes de mesure de la couleur de dents.

PROCESS AND DEVICE OF MEASUREMENT OF THE COLOR

Листовой фотоколориметр

Полезная модель относится к области исследования оптических свойств материалов и касается листового фотоколориметра. Фотоколориметр включает в себя блок светодиодов, фотоприемник, блок питания и процессор, первый вход которого соединен с выходом клавиатуры, а первый выход соединен с входом дисплея. Кроме того, он снабжен датчиками толщины и прижима, прижимом и электромагнитным приводом прижима, подпружиненным рычагом, опирающимся на выключатель, блоком памяти, соединенным с вторым выходом процессора. Второй, третий, четвертый и пятый входы процессора соединены соответственно с выходами датчиков толщины и прижима, фотоприемника и выключателя. Третий и четвертый выходы процессора соединены соответственно с входами блока светодиодов и электромагнитного привода прижима. Корпус фотоколориметра выполнен в форме пистолета с прорезью для измеряемого образца в своей передней части. Технический результат заключается в расширении функциональных возможностей устройства за счет обеспечения возможности дополнительного определения удельной оптической плотности. 2 ил. 3 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 199 305 U1 (51) МПК G01J 3/50 (2006.01) G01N 21/27 (2006.01) G01N 21/59 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01J 3/501 (2020.02); G01N 21/27 (2020.02); G01N 21/59 (2020.02) (21)(22) Заявка: 2020111902, 24.03.2020 (24) Дата начала отсчета срока действия патента: Дата регистрации: 26.08.2020 (45) Опубликовано: 26.08.2020 Бюл. № 24 1 9 9 3 0 5 R U (54) Листовой фотоколориметр (57) Реферат: Полезная модель относится к области исследования оптических свойств материалов и касается листового фотоколориметра. Фотоколориметр включает в себя блок светодиодов, фотоприемник, блок питания и процессор, первый вход которого соединен с выходом клавиатуры, а первый выход соединен с входом дисплея. Кроме того, он снабжен датчиками толщины и прижима, прижимом и электромагнитным приводом прижима, подпружиненным ...

Цветоизмерительное устройство

Полезная модель относится к области измерительной техники и касается цветоизмерительного устройства. Цветоизмерительное устройство содержит корпус, светоотражающую насадку с изменяемой апертурой и разъем USB. Внутри корпуса установлен контроллер управления, к которому подсоединены источники освещения основных цветов, светочувствительный датчик, и цветной экран, и элемент питания. Светоотражающая насадка с изменяемой апертурой выполнена в виде цилиндра и с одной стороны имеет резьбовое крепление к корпусу цветоизмерительного устройства, а с другой стороны - механизм лепестковой диафрагмы. Технический результат заключается в обеспечении возможности изменения площади анализируемой окрашенной поверхности без снятия/установки отдельных элементов устройства. 1 з.п. ф-лы, 2 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 207 191 U1 (51) МПК G01J 3/50 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01J 3/501 (2021.08) (21)(22) Заявка: 2021122745, 30.07.2021 (24) Дата начала отсчета срока действия патента: Дата регистрации: 15.10.2021 Адрес для переписки: 644050, г. Омск, пр-кт Мира, 11, ОмГТУ, Отдел инновационной деятельности, Г-203, Федоров А.А. (56) Список документов, цитированных в отчете о поиске: RU 166344 U1, 20.11.2016. US 7808639 B2, 05.10.2010. US 2003071998 A1, 17.04.2003. WO 1999032860 A1, 01.07.1999. U 1 2 0 7 1 9 1 R U Стр.: 1 насадка с изменяемой апертурой выполнена в виде цилиндра и с одной стороны имеет резьбовое крепление к корпусу цветоизмерительного устройства, а с другой стороны - механизм лепестковой диафрагмы. Технический результат заключается в обеспечении возможности изменения площади анализируемой окрашенной поверхности без снятия/установки отдельных элементов устройства. 1 з.п. ф-лы, 2 ил. U 1 (54) ЦВЕТОИЗМЕРИТЕЛЬНОЕ УСТРОЙСТВО (57) Реферат: Полезная модель относится к области измерительной техники и касается цветоизмерительного устройства. Цветоизмерительное устройство содержит корпус, ...

Method, apparatus, and article to facilitate evaluation of objects using electromagnetic energy

Spectral information may be employed in process control and/or quality control of goods and articles. Spectral information may be employed in process control and/or quality control of media, for example financial instruments, identity documents, legal documents, medical documents, financial transaction cards, and/or other media, fluids for example lubricants, fuels, coolants, or other materials that flow, and in machinery, for example vehicles, motors, generators, compressors, presses, drills and/or supply systems. Spectral information may be employed in identifying biological tissue and/or facilitating diagnosis based on biological tissue.

Article, system, and method for color measurement

In one example, the article includes instructions for illuminating a color patch with a first illumination intensity, capturing a first color measurement of the color patch, adjusting the first illumination intensity to a second illumination intensity based on the first color measurement, illuminating the color patch with the second illumination intensity, and capturing a second color measurement. In one example, the system discloses a light source illuminates a color patch with a first illumination intensity, a color measurement module captures a first color measurement of the color patch, wherein the color measurement module causes the light source to adjust the first illumination intensity to a second illumination intensity based on the first color measurement, and wherein the color measurement module captures a second color measurement of the color patch. In one example, the method discloses blocks for effecting the article and system.

Optical sensor and display device

In a liquid crystal display device, noise light to a photodetecting element is reduced, whereby an improved S/N ratio is achieved. The liquid crystal display device includes: a first substrate ( 100 ) on which a pixel circuit is provided; a second substrate ( 101 ) arranged so as to face the first substrate ( 100 ) with a liquid crystal layer ( 30 ) being interposed therebetween; a photodetecting element ( 17 ) provided on the first substrate ( 100 ); and a detection light filter ( 18 ) that is provided between the photodetecting element ( 17 ) and the liquid crystal layer ( 30 ) and that cuts off light in a band outside a signal light band that is a band of light to be detected by the photodetecting element ( 17 ).

Variable wavelength interference filter, optical module, and optical analysis device

An etalon includes a first substrate, a second substrate facing the first substrate, a fixed mirror provided on a surface of the first substrate that faces the second substrate, a movable mirror provided on the second substrate and facing the fixed mirror via an inter-mirror gap, and a first electrode provided on the surface of the first substrate that faces the second substrate. A first multilayer stopper portion is provided by a portion of the first electrode being stacked with at least a portion of an outer circumferential edge of the fixed mirror.

Dental shade mapping

A method and apparatus for obtaining a color mapping of a dental object. Illumination is directed toward the object over at least a first and second wavelength band, one band at a time. An image of the dental object is captured at each wavelength band to form a set of images of the dental object. For pixels in the captured set of images, an image data value for the pixel corresponds to each of the wavelength bands and calculates interpolated image data values proportional to the spectral reflectance of the dental object, according to the obtained image data values and according to image data values obtained from a reference object at the wavelength bands. Spectral distribution data for a viewing illuminant is obtained and the visual color of the dental object reconstructed according to the calculated interpolated image data values and the obtained spectral distribution of the viewing illuminant.

Apparatus and method for measuring color

Color measuring systems and methods are disclosed. Perimeter receiver fiber optics are spaced apart from a central source fiber optic and receive light reflected from the surface of the object being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe with respect to the object being measured. Under processor control, the color measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention.

Adaptive illumination method and apparatus for dental shade matching

An intra-oral imaging apparatus for obtaining an image of a tooth has an image capture apparatus with an imaging sensor that is energizable to obtain image data and one or more optical elements for directing light from the tooth to the imaging sensor. An illumination apparatus has one or more light sources energizable to emit light and a spatial light modulator that is configurable to shape an illumination beam from the emitted light. One or more optical elements relay the shaped illumination beam toward the tooth surface. A control logic processor in signal communication with the imaging sensor obtains image data and in signal communication with the spatial light modulator shapes the illumination beam according to the obtained image data.

Process for producing and delivering matching color coating and use thereof

The present invention is directed to a process for repairing one or more defects of a target coating of a vehicle. The process can repair target coatings at a repair facility using matching coating compositions provided from a supply center, where the matching coating compositions can be produced according to target repair data transmitted from one or more repair facilities to the supply center. The present invention is also directed to a system for repairing one or more defects of a target coating of a vehicle. The system can comprise one or more supply centers and one or more repair facilities.

PHOTODETECTOR FOR DETERMINING LIGHT WAVELENGTHS

There is described a photodetector comprising a semiconductor material having at least a region substantially depleted of free moving carriers, the photodetector comprising: a substrate of one of n-type and p-type; at least one charge collector along a surface of the substrate and having a doping-type opposite from the substrate; a substrate contact along the surface of the substrate spaced apart from the at least one charge collector to allow current to flow between the at least one charge collector and the substrate contact; and at least one non-conductive electrode positioned along the surface of the substrate in an alternating sequence with the at least one charge collector, and separated from the substrate by an insulator, and adapted to apply an electric potential to the substrate and cause charge carriers generated therein by application of a light source to advance towards the at least one charge collector due to the effects of an electric field, such that the at least one charge collector can measure carrier concentration within the substrate. 1. A photodetector comprising a semiconductor material having at least a region substantially depleted of free moving carriers , the photodetector comprising:a substrate of one of n-type and p-type;at least one charge collector along a surface of the substrate and having a doping-type opposite from the substrate;a substrate contact along the surface of the substrate spaced apart from the at least one charge collector to allow current to flow between the at least one charge collector and the substrate contact; andat least one non-conductive electrode positioned along the surface of the substrate in an alternating sequence with the at least one charge collector, and separated from the substrate by an insulator, and adapted to apply an electric potential to the substrate and cause charge carriers generated therein by application of a light source to advance towards the at least one charge collector due to the effects of ...

Process For Predicting Tint Strength Of Coating Compositions By Wet Color Measurement

The present invention is directed to a process for predicting the tint strength of a pigmented coating composition, such as automotive OEM or refinish paint, on a real time basis while it is being made. The tint strength of a coating resulting from a layer, obtained by adding a reference binder to the coating composition, is measured. The process is repeated by subjecting the coating compositions to successive grinding intervals. The tint strength vs. reflectance is plotted on a graph and then by using a curve fitting equation, a tint strength prediction curve is obtained. By measuring the reflectance of a wet layer of a target coating composition, the tint strength of that target coating composition can then be predicted by using the tint strength prediction curve. The process is most useful during the manufacture of coating compositions, such as automotive OEM and refinishes paints. 1. A tint strength prediction process comprising:{'sub': 0', '0', '0, '(a) dispensing on a test substrate a Llayer of a substantially uniform thickness of an aliquot of a Scoating composition containing pigments through a vessel of a tint strength prediction device containing said Scoating composition;'}{'sub': '0', '(b) projecting on said Llayer a beam of light of a preset intensity at a preset angle of incidence from a light source;'}{'sub': 0', '0, '(c) measuring Breflectance of said beam reflected from said Llayer at a preset angle of reflectance by an optical measurement instrument;'}{'sub': 0', '0', '0, '(d) measuring Ytint strength of a Mcoating composition comprising a reference binder and said Scoating composition;'}{'sub': 0', '1', '1, '(e) grinding Scoating composition for Tgrinding interval to produce Scoating composition;'}{'sub': 1', '1', '1', '1', '1', '1, '(f) repeating steps (a) through (d) to determine Breflectance of a Llayer of said Scoating composition and Ytint strength of said Mcoating composition comprising said reference binder and said Scoating composition ...

Optical filter device and manufacturing method for the optical filter device

An optical filter device includes an interference filter and a housing. The interference filter includes a fixed substrate, a movable substrate joined to the fixed substrate, a fixed reflective film provided on the fixed substrate, and a movable reflective film provided on the movable substrate and opposed to the fixed reflective film across an inter-reflective film gap. The housing includes a base substrate on which the interference filter is arranged. A fixing member is arranged between the movable substrate and the base substrate. The movable substrate is fixed to the base substrate by the fixing member in one place excluding a region where the movable reflective film is provided.

Flash apparatus and method for controlling the colour temperature of light in a flash

A flash apparatus comprising at least two flash tubes and at least two energy storage units is presented, wherein each of said at least two energy storage units is being arranged to be configured to strictly correspond to one of the at least two flash tubes for a flash. The flash apparatus is configured to control the amount of energy provided by the at least two energy storage unit(s) to their corresponding flash tube and control the flash duration of the corresponding flash tube dependent of each other, respectively for each flash tube, so as to obtain substantially the same colour temperature from each flash tube for a flash. A method and a computer program product for use in the flash apparatus are also presented.

System for distributing and controlling color reproduction at multiple sites

The system provides for controlling color reproduction of input color image data in a network having nodes (or sites). The system distributes the input color image data from one of the nodes to other nodes, and provides data structures in the network. The system has means for providing color calibration data at each node characterizing output colors (colorants) of the rendering device of the node, and means for producing at each node, responsive to the color calibration data of the rendering device of the node, information for transforming the input color image data into output color image data at the rendering device of the node. The rendering device of each node renders a color reproduction responsive to the output color image data, wherein colors displayed in the reproduction at the rendering device of each node appear substantially the same within the output colors attainable by the rendering devices.

SPECTRAL COLORIMETRIC APPARATUS AND IMAGE FORMING APPARATUS INCLUDING THE SAME

A spectral colorimetric apparatus includes a housing which includes a side wall. An outer surface of the side wall is an adjustment surface capable of adjusting a position of a linear sensor by moving while attaching the linear sensor to the adjustment surface. The linear sensor is supported by the side wall of the housing while abutting on the adjustment surface and receives alight beam that is dispersed by a concave surface reflection type diffraction element and passes through an opening portion. The adjustment surface is parallel to a tangential line at a part of a Rowland circle of the concave surface reflection type diffraction element, through which a light beam received by the linear sensor passes. 1a concave surface reflection type diffraction element configured to disperse an incident light beam;a linear sensor including a plurality of photoelectric conversion elements each configured to receive the light beam dispersed by the concave surface reflection type diffraction element;a housing which includes a side wall and configured to support the concave surface reflection type diffraction element and the linear sensor; andan opening portion formed in the side wall of the housing arranged such that the light beam dispersed by the concave surface reflection type diffraction element passes through the opening,wherein an outer surface of the side wall is operable as an adjustment surface capable of adjusting the position of the linear sensor by moving while abutting on the linear sensor, and the linear sensor is supported by the side wall of the housing while abutting on the adjustment surface and receives the light beam that is dispersed by the concave surface reflection type diffraction element and passes through the opening portion, andwherein the adjustment surface is parallel to a tangential line at a part of a Rowland circle of the concave surface reflection type diffraction element, through which a light beam received by the linear sensor passes.. A ...

Dental Shade Matching Device

A non-contact type dental shade matching device is provided, comprising a camera body for capturing image of one or more target teeth; an opaque intra-oral compartment snugly adapted for a human mouth; an opaque cover shield body connected between the camera body and the intra-oral compartment; one or more holders for holding one or more shade tabs; and a color matching module being operably connected to the camera body to receive the captured images containing color and translucency information of the target tooth and/or shade tab information, and then to process the images based on a content-based algorithm for automatic shade matching between the target tooth and the shade tabs for each of the captured images, so as to achieve an optimal dental prosthesis.

Check-tile for colour measurement instruments

The invention relates to a check-tile for validating instrument scales of colour measurement instruments, in particular of goniospectrophotometers, said check-tile comprising a transparent substrate coated with a multi-layer coating, said multi-layer coating comprising: A) a pigmented mid-coat applied to the transparent substrate, wherein said pigmented mid-coat is translucent and made of a base coat coating composition I comprising at least one transparent interference pigment, and B) a pigmented ground coat, wherein said pigmented ground coat is opaque and made of a base coat coating composition II comprising at least one opaque solid coloured pigment.

Methods of calibrating color measurement devices

An embodiment of the invention provides a method of calibrating a color measurement device using a light source having a known color value. The color measurement device includes a light detector. The method includes: aligning the color measurement device and the light source so that the light source images on a center area of the light detector; deriving a detected color value for the light source based on the light detected by the center area when the light source images thereon; deriving a color calibration coefficient based on the detected color value and the known color value of the light source; and deriving a color and flat-field calibration array for the color measurement device by multiplying each entry of a flat-field calibration array of the color measurement device by the color calibration coefficient.

COLOR MEASURING APPARATUS, PRINTING APPARATUS AND BACKING PLATE

The present invention provides a color measuring apparatus and a printing apparatus that enable the user to easily keep a backing plate. A color measuring apparatus includes a holder on which a backing plate is capable of being attached, the backing plate having a white portion and a black portion, and a sensor for measuring color patterns on a sheet on the backing plate. Either one of the white portion and the black portion faces the sensor, depending on the attached state of the backing plate on the holder. 1. A color measuring apparatus , comprising:a holder on which a backing plate is capable of being attached, the backing plate having a white portion and a black portion; anda sensor for measuring color patterns on a sheet on the backing plate;wherein, in accordance with an attached state of the backing plate on the holder, the sensor faces either one of the white portion and the black portion.2. The color measuring apparatus according to claim 1 , further comprising:a unit that includes a carriage that holds the sensor and moves with respect to the color patterns, and a pressure plate, andwhen measuring color, the pressure plate presses the sheet against the backing plate.3. The color measuring apparatus according to claim 1 , whereinthe surface of the white portion in the case where the white portion faces the sensor is at the same height with respect to the holder as the surface of the black portion in the case where the black portion faces the sensor.4. The color measuring apparatus according to claim 1 , whereinthe white portion and the black portion are formed on the same face of the backing plate, andthe backing plate is attachable to the holder indifferent orientations, such that either one of the white portion and the black portion faces the sensor.5. The color measuring apparatus according to claim 1 , whereinthe white portion is formed on a first face of the backing plate, and the black portion is formed on a second face on the opposite side of the ...

White LED Quality Inspection Method and Device

A white LED quality inspection method includes steps as follows. A steady current is supplied to a LED by a rated voltage supply unit for generation of a stable light spot from the LED; a stable light spot is received by a photosensor of a luminous intensity sensing unit and transformed to digital information; the digital information is received by a preprocessing unit and transformed to pixel information; the pixel information is received by a calculation unit to calculate a Yellow Ring Index of each pixel in the pixel information.

INSPECTION DEVICE

An inspection device for inspecting an object based on illumination light acting on the object, including a light detection unit that receives the illumination light acting on the object for inspection and is provided with photoelectric conversion units with different spectral sensitivity characteristics, an operating condition determining unit that determines operating conditions for the light detection unit, a measurement control unit that controls the light detection unit in accordance with the operating conditions, and a color estimation unit that estimates color of the object for inspection based on output from the light detection unit controlled in accordance with the operating conditions. The operating condition determining unit determines the operating conditions based on at least one of illumination information relating to the illumination light acting on the object for inspection and object information relating to the object for inspection. 1. An inspection device for inspecting an object based on illumination light acting on the object , the inspection device comprising:a light detection unit configured to receive the illumination light acting on the object for inspection and provided with a plurality of photoelectric conversion units with different spectral sensitivity characteristics;an operating condition determining unit configured to determine operating conditions for the light detection unit;a measurement control unit configured to control the light detection unit in accordance with the operating conditions; anda color estimation unit configured to perform color estimation processing based on output from the light detection unit controlled in accordance with the operating conditions, whereinthe operating condition determining unit determines the operating conditions based on at least one of illumination information relating to the illumination light acting on the object for inspection and object information relating to the object for inspection.2. ...

Luminous intensity test device

A luminous intensity test device includes an optical frequency converter, a display, and a processor. The optical frequency converter selectively converts at least a portion of light emitted by a light source into a digital signal. The display displays a color selection interface. The processor processes the digital signal and obtains the luminous intensity. When a tester inputs a color parameter into the color selection interface via an input device, the optical frequency converter converts a kind of light to the digital signal and then the processor processes the digital signal to obtain a luminous intensity and display the luminous intensity on the display.

SPECTRAL SENSITIVE SOLID-STATE PHOTODETECTOR

A method for detecting photons includes subjecting a photodiode formed in a semi-conductive material, to a bias voltage such that an avalanche phenomenon can appear when a photon enters the photodiode in an avalanche layer extending into the semi-conductive material down to minimum and maximum depths so that it can be reached by photons having a wavelength between minimum and maximum wavelengths. The method also includes comparing the amplitude of a signal supplied by the photodiode with two threshold values, and deducing that the photodiode received a photon having a wavelength between two threshold wavelengths ranging between the minimum and maximum wavelengths, if the amplitude of the signal is between the two threshold values. 1. A method for detecting photons , comprising:subjecting a photodiode formed in a semi-conductive material to a bias voltage such that an avalanche phenomenon is triggered in an avalanche layer of the photodiode when a photon enters the photodiode,wherein the avalanche layer extends into the semi-conductive material down to minimum and maximum depths so that it can be reached by photons having a wavelength between minimum and maximum wavelengths,the method further comprising:comparing the amplitude of a signal supplied by the photodiode with two different threshold values, anddeducing that the photodiode has received a photon having a wavelength between two threshold wavelengths ranging between the minimum and maximum wavelengths, if the amplitude of the signal is between the two threshold values.2. The method according to claim 1 , further comprising counting claim 1 , during an acquisition period claim 1 , a number of pulses detected at the terminals of the photodiode claim 1 , having an amplitude between the two threshold values to obtain a value representative of a number of photons that have entered the photodiode during the acquisition period claim 1 , and having a wavelength between the two threshold wavelengths.3. The method ...

Light emitting diode

A light emitting diode includes a first illumination region, a second illumination region, and the third illumination, wherein a first fluorescent conversion layer and a second fluorescent conversion layer cover the first illumination region and the second illumination region, respectively. The fluorescent conversion layers can convert lights from the illumination regions to other lights with different wavelengths whereby the light emitting diode generates light with multiple wavelengths.

Optical characteristic measuring apparatus

An optical characteristic measuring apparatus includes a hemispheric portion having a reflective surface on its inner wall, and a plane portion arranged to close an opening of the hemispheric portion and having a reflective surface on an inner-wall side of the hemispheric portion. The plane portion includes a first window occupying a range including a substantial center of curvature of the hemispheric portion for attaching a light source to the first window. At least one of the hemispheric portion and the plane portion includes a plurality of second windows arranged in accordance with a predetermined rule for extracting light from inside the hemispheric portion.

Optical Characteristic Measuring Apparatus and Method

An optical characteristic measuring apparatus and an optical characteristic measuring method of the invention are an optical characteristic measuring apparatus and method for obtaining a predetermined optical characteristic such as a color value or a total spectral radiation factor of a measurement object. A spectral intensity distribution of predetermined ambient light entering through a measurement opening is measured and stored prior to measurement of the optical characteristic. In measuring the optical characteristic, an optical characteristic in a condition that actually measured ambient light is used as an observation light source is obtained, with use of the stored spectral intensity distribution of ambient light.

Multi-Angle Colorimeter

In a multi-angle colorimeter, a light detecting portion includes a main light receiving window disposed in a predetermined position on a main geometry plane, and first and second auxiliary light receiving windows disposed on a secondary geometry plane, and a main photoelectric conversion element for converting a main component light received by the main light receiving window in a light reflected from a measurement point into an electrical main signal and first and second auxiliary photoelectric conversion elements for converting first and second auxiliary component lights received by the first and second auxiliary light receiving windows in the reflected light respectively into first and second electrical auxiliary signals. A calculating portion corrects the electrical main signal based on the first and second electrical auxiliary signals to obtain color information about the measurement point. 1. A multi-angle colorimeter comprising:(a) an illuminating portion disposed on a virtual reference plane including a predetermined reference line and carrying out light irradiation toward a predetermined measurement point defined on said reference line; said light detecting portion including:', 'a main light receiving window disposed in a predetermined position on said reference plane;', 'a plurality of auxiliary light receiving windows disposed on a plane which includes said predetermined position and said predetermined measurement point and is orthogonal to said reference plane, and opposed to said measurement point respectively;', 'a main photoelectric conversion element for receiving a main component light received by said main light receiving window in a reflected light from a measurement plane disposed on said measurement point and converting said main component light into an electrical main signal; and', 'a plurality of auxiliary photoelectric conversion elements for receiving a plurality of auxiliary component lights received by said plurality of auxiliary light ...

Multi-Angle Colorimeter

A multi-angle colorimeter employs a multi-angle mode and a symmetrical arrangement mode in an optical arrangement. Light detection on both sides of the symmetrical arrangement is performed by a single photodetector unit. The photodetector unit is used on both sides, and thus, the device becomes simpler, without any impact on individual difference in characteristics of multiple photodetector units. Conversely, elements for illumination can be used on both sides. Also in a case where multiple photodetector units are used, the size and cost of the device can be reduced with the use of a photodetector unit having a relatively low wavelength resolution as a photodetector unit to be used on one side. This enables to reduce an attitude error due to relative tilting of a measurement surface while reducing the size and cost of the device. 1. A multi-angle colorimeter comprising:(a) multiple first illumination sections that are arranged on a virtual reference plane including a predetermined reference line and perform light irradiation at different angles toward a predetermined measurement point defined on said reference line;(b) multiple second illumination sections that are respectively arranged symmetrically with said multiple first illumination sections about said reference line on said reference plane and perform light irradiation toward said predetermined measurement point; first and second light receiving windows arranged on said reference plane, face said measurement point, and are arranged symmetrically about said reference line; and', 'a single photodetector unit including a photoelectric conversion element that receives first and second lights respectively received through said first and second light receiving windows and converts the received lights into electric signals; and, '(c) a photodetector section including(d) a computing section that determines detection values of said first and second lights based on said signals and obtains color information of a ...

Multi-angular color, opacity, pigment characterization and texture analysis of a painted surface via visual and/or instrumental techniques

A computer implemented method. The method includes performing at least one of a visual evaluation and an instrument measurement of a target coating on a target sample to generate colorimetric information, and identifying, using a processor, a bulk toner that is present in the target coating by determining a color and a color intensity at different viewing angles relative to the target sample. The method also includes identifying, using the processor, at least one specific toner that is present in the target coating by detecting a presence and an orientation of colored and/or non-colored pigmentation effects that are present in the target coating, and outputting, using the processor, a formulation of the target coating that includes at least the at least one specific toner.

Color capture system and device

Exemplary embodiments provide a simple, inexpensive, and easy-to-operate color capture device that can capture color information and transmit the captured color information to an interface device such as smartphone, where the captured color information is optionally processed and is then transmitted to a remote server for subsequent production of the customized cosmetic.

SYSTEM AND METHOD FOR TRAFFIC LIGHT DETECTION AND COMMUNICATION

An auxiliary device and system for traffic light detection and communication. The auxiliary device is positionable adjacent to a traffic light. The auxiliary device includes at least one light pipe positionable adjacent to at least one traffic indicator disposed on a surface of the traffic light. The at least one light pipe is capable of carrying a light output from the least one traffic indicator to the auxiliary device. The auxiliary device includes a sensor for sensing the light output, and a processor operatively connected for computer communication to the sensor. The processor receives a measurement from the sensor. The measurement is associated with the light output. The processor detects a state of the light output based on the measurement, and transmits the state to one or more remote vehicles. 1. An auxiliary device removably attached to a traffic light , the auxiliary device comprising:a housing positionable adjacent to a front surface of the traffic light, wherein the front surface of the traffic light includes a first traffic indicator, a second traffic indicator, and a third traffic indicator;a first light pipe attached to the housing and having a first light entry to allow a first light output from the first traffic indicator to pass into the first light pipe through the first light entry;a second light pipe attached to the housing and having a second light entry to allow a second light output from the second traffic indicator to pass into the second light pipe through the second light entry;a third light pipe attached to the housing and having a third light entry to allow a third light output from the third traffic indicator to pass into the third light pipe through the third light entry;a sensor disposed in the housing for sensing at least one of the first light output, the second light output, and the third light output; and receives a measurement from the sensor, wherein the measurement is associated with the at least one of the first light output, ...

SYSTEMS AND METHODS FOR CONTROLLING DEVICE OPERATION ACCORDING TO HAND GESTURES

Provided is a non-contact sensing device that comprises a sensor comprising a plurality of function key sensors. A function key sensor of the plurality of function key sensors has a field of view. The function key sensor is constructed and arranged to detect a hand gesture at the field of view and to generate a function key control signal in response to detecting the hand gesture at the field of view. A processor processes the function key control signal from the function key sensor and outputs a command to a remote apparatus in response to the processed control signal. 1. A non-contact sensing device , comprising:a sensor comprising a plurality of function key sensors;a function key sensor of the plurality of function key sensors having a field of view, the function key sensor constructed and arranged to detect a hand gesture at the field of view and to generate a function key control signal in response to detecting the hand gesture at the field of view; anda processor that processes the function key control signal from the function key sensor and outputs a command to a remote apparatus in response to the processed control signal.2. The non-contact sensing device of claim 1 , further comprising one or more cameras that recognize the hand gesture claim 1 , wherein the command is generated from a combination of a function key corresponding to the function key sensor and the recognized hand gesture.3. The non-contact sensing device of claim 1 , wherein the sensor is a staring sensor comprising a detector array that includes a combination of the function key sensors and non-function key sensors claim 1 , the staring sensor generating all image pixels of the detector array simultaneously.4. The non-contact sensing device of claim 1 , wherein the sensor is a scanning sensor that scans a portion of a field of view at a time.5. The non-contact sensing device of claim 1 , wherein the sensor includes a scan mirror that scans all function key sensors and only the non-function ...

Method and apparatus for determining failure in optical module for vehicle lamp

Disclosed are method and apparatus for determining failure in an optical module for a vehicle lamp. The method may include detecting at least one optical property information value of light generated in a light source, determining whether or not the detected optical property information value is within preset normal range values, determining that failure has occurred if the detected optical property information value deviates from the preset normal range values, and limiting an operation of the light source if it is determined that failure has occurred.

SENSOR CLIP AND METHOD OF USING

The present system provides a sensor clip system that can be clipped to luminaires of a plurality of shapes and sizes and method of using the sensor clip. Some of the sensors are upward looking (into the luminaire) while others are downward looking (away from the luminaire); and thus face in substantially opposite directions. The sensor clip is adjustable in one, two or three dimensions to be able to easily fit with different sized and shaped luminaires, such that the upward looking sensors may face the incoming light and downward looking sensors face away from the light. The sensor clip system may also provide attenuation of the luminous intensity of the emitted light coming out of the luminaires and extends the longevity and usability of the embedded sensor. 1. A luminaire sensor clip system , comprising:a housing having at least one light-receiving opening therein;a color sensor positioned within the housing, the color sensor being optically aligned with the light-receiving opening in the housing such that light from a luminaire is directly received by the color sensor;an environment sensor mounted on the housing in a position such that light from the luminaire is indirectly received by the environment sensor; andan attachment member for connecting the housing onto the luminaire, wherein the attachment member comprises a vertical leg, the vertical leg configured to receive a sliding member, and an attachment arm disposed at a substantially right angle to the vertical leg, the attachment arm configured for attachment to a luminaire.2. The luminaire sensor clip system of claim 1 , wherein the color sensor faces towards the luminaire and the environment sensor faces away from the luminaire.3. (canceled)4. The luminaire sensor clip system of claim 1 , wherein the sliding member is slideably attached to the vertical leg and the housing is slideably attached to the sliding member such that movement of the sliding member and the housing relative to the attachment member ...

INFORMATION PROCESSOR, NON-TRANSITORY COMPUTER READABLE MEDIUM, AND INFORMATION PROCESSING METHOD

An information processor includes an acquisition unit that acquires a colorimetric value from a colorimeter that scans a color chart and measures color; and an output unit that assigns a weighting value according to a position in a scanning interval of the color chart, and that outputs a weighted average value of the colorimetric value of multiple patches for a color setting value. 1. An information processor comprising:an acquisition unit that acquires a colorimetric value from a colorimeter that scans a color chart and measures color; andan output unit that assigns a weighting value according to a position in a scanning interval of the color chart, and that outputs a weighted average value of the colorimetric value of a plurality of patches for a color setting value.2. The information processor according to claim 1 ,wherein in a first interval including an end point of the scanning interval and shorter than the scanning interval, the output unit assigns a smaller weighting value than in a second interval adjacent to the first interval.3. The information processor according to claim 2 ,wherein in the first interval including the end point of the scanning interval and shorter than the scanning interval, the output unit assigns a larger weighting value as a position is further away from the end point.4. The information processor according to claim 1 ,wherein in addition to assigning a weighting value according to a position in the scanning interval, the output unit assigns a weighting value according to elapsed time after calibration of the colorimeter.5. The information processor according to claim 2 ,wherein in addition to assigning a weighting value according to a position in the scanning interval, the output unit assigns a weighting value according to elapsed time after calibration of the colorimeter.6. The information processor according to claim 3 ,wherein in addition to assigning a weighting value according to a position in the scanning interval, the output ...

Measurement Device, Electronic Apparatus And Measurement Method

A measurement device includes a plurality of light sources configured to emit light toward a measurement object, and having a same emission spectrum, a spectroscopic measurement section configured to perform spectroscopic measurement on the light reflected by the measurement object, a light source switching section configured to switch a combination of the light sources to be put on or off out of the plurality of light sources, and an arithmetic section configured to calculate the spectral reflectivity of the measurement object based on a spectroscopic measurement result obtained by the spectroscopic measurement section when putting on or off the plurality of light sources with a plurality of the combinations. 1. A measurement device comprising:a plurality of light sources configured to emit light toward a measurement object, and having a same emission spectrum;a spectroscopic measurement section configured to perform a spectroscopic measurement on light reflected by the measurement object to obtain a spectroscopic measurement result;a light source switching section configured to switch a combination of the light sources to be put on or off out of the plurality of light sources; andan arithmetic section configured to calculate a spectral reflectivity of the measurement object based on the respective spectroscopic measurement results when switching the plurality of light sources with a plurality of the combinations.2. The measurement device according to claim 1 , whereinthe arithmetic section calculates a partial spectral reflectivity corresponding to the combination based on the spectroscopic measurement result corresponding to the combination, and combines a plurality of the partial spectral reflectivities corresponding to a plurality of the combinations with each other to calculate the spectral reflectivity.3. The measurement device according to claim 2 , wherein{'sub': avi', 'i', 'i', 'avi', 'i', 'i+n', 'avi', 'i, 'the arithmetic section defines an average value ...

Emulating a spectral measurement device

Certain examples relate to emulating a spectral measurement device in a color measurement apparatus. In these examples, a primary spectral measurement device measures a first spectral characteristic of a rendered color output. A predictive model, parametrized by parameter values, is applied to the measurement from the primary spectral measurement device to determine a predicted measurement of a second spectral characteristic of the rendered color output which would be measured by an ancillary spectral measurement device. Parameter values are generated by training the predictive model with data from the primary spectral measurement device and the ancillary spectral measurement device.

Spectral Lighting Modeling and Control

Spectral irradiance distributions are calculated within a virtual environment based on arbitrary light source spectral power distributions. Architectural, horticultural and aquacultural lighting control systems use the calculated results to control both the intensity and spectral power distribution of the electric light sources. Energy consumption may be minimized while maintaining optimal occupant visual comfort and plant health. 1. A method of predicting a spectral irradiance distribution for an arbitrary position and arbitrary view direction in a virtual environment , comprising the steps of:calculating, by a processor, a direct spectral irradiance for said position and direction due to one or more light sources illuminating the virtual environment;calculating, by the processor, an indirect spectral irradiance for said position and direction due to reflections from one or more surfaces in the virtual environment, said indirect spectral irradiance calculated as a per-wavelength multiple of the direct spectral irradiance; andsumming, by the processor, the direct spectral irradiance and the indirect spectral irradiance to result in the spectral irradiance distribution.2. The method of claim 1 , wherein calculating the indirect spectral irradiance comprises:assigning RGB triplets to one or more surfaces in the virtual environment based on a reference illuminant; and calculating, by the processor, an indirect tristimulus irradiance for said position and direction due to reflections from one or more surfaces in the virtual environment;', 'reconstructing, by the processor, a physically plausible relative spectral power distribution from the indirect tristimulus irradiance;', 'multiplying, by the processor, said relative spectral power distribution by a spectral power distribution of the light source and the reference illuminant on a per-wavelength basis, to result in a spectral power distribution; and', 'scaling, by the processor, the spectral power distribution ...

Detector for an optical detection of at least one object

A detector ( 110 ) for an optical detection of at least one object ( 112 ) is proposed. The detector ( 110 ) comprises: —at least one transfer device ( 120 ), wherein the transfer device ( 120 ) comprises at least two different focal lengths ( 140 ) in response to at least one incident light beam ( 136 ); —at least two longitudinal optical sensors ( 132 ), wherein each longitudinal optical sensor ( 132 ) has at least one sensor region ( 146 ), wherein each longitudinal optical sensor ( 132 ) is designed to generate at least one longitudinal sensor signal in a manner dependent on an illumination of the sensor region ( 146 ) by the light beam ( 136 ), wherein the longitudinal sensor signal, given the same total power of the illumination, is dependent on a beam cross-section of the light beam ( 136 ) in the sensor region ( 146 ), wherein each longitudinal optical sensor ( 132 ) exhibits a spectral sensitivity in response to the light beam ( 136 ) in a manner that two different longitudinal optical sensors ( 132 ) differ with regard to their spectral sensitivity; wherein each optical longitudinal sensor ( 132 ) is located at a focal point ( 138 ) of the transfer device ( 120 ) related to the spectral sensitivity of the respective longitudinal optical sensor ( 132 ); and —at least one evaluation device ( 150 ), wherein the evaluation device ( 150 ) is designed to generate at least one item of information on a longitudinal position and/or at least one item of information on a color of the object ( 112 ) by evaluating the longitudinal sensor signal of each longitudinal optical sensor ( 132 ). Thereby, a simple and, still, efficient detector for an accurate determining of a position and/or a color of at least one object in space is provided.

PROCESS FOR MATCHING COLOR AND APPEARANCE OF COATINGS

A process for producing a total match metric for matching color and appearance of a target coating and at least a specimen coating is provided. The total match metric (TMM) are produced based on color difference values (ΔE) at three or more color viewing angles, sparkle difference values (ΔS) at one or more sparkle viewing angles and flop difference value (Δf) between the target coating and the specimen coating using one or more linear functions, one or more non-linear functions, or a combination thereof. The total match metric can be used in producing matching coatings that match color and appearance of the target coating. The total match metric can be particularly useful for repair coating damages to vehicles. 1. A process for producing a total match metric for matching color and appearance of a target coating and at least a specimen coating , the process comprising the steps of:A1) obtaining target color data of the target coating and specimen color data of the specimen coating produced from a specimen coating composition, wherein the target color data comprise target color values measured at three or more color viewing angles and the specimen color data comprise specimen color data values measured at the three or more color viewing angles;A2) producing color difference values (ΔE) at each of the color viewing angles based on the target color data and the specimen color data values at each of the color viewing angles;A3) obtaining target sparkle data of the target coating and specimen sparkle data of the specimen coating, wherein the target sparkle data comprise target sparkle values measured at one or more sparkle viewing angles and the specimen sparkle data comprise specimen sparkle values measured at the one or more sparkle viewing angles;A4) producing sparkle difference values (ΔS) at each of the sparkle viewing angles based on the target sparkle data and the specimen sparkle data at each of the sparkle viewing angles;{'sup': t', 's, 'A5) generating target ...

Calibrator

There is disclosed a calibrator configured to calibrate a color of a screen of a display device includes an absorption plate formed of a transformable material, comprising a bottom surface attached to the screen of the display device in a vacuum absorption method; a control portion configured to leave space a first portion of the absorption plate from the screen of the display device; a fixed portion configured to press a second portion of the absorption plate to the screen of the display closely; a rotary portion configured to rotatably coupled to the fixed portion in a horizontal direction and to move the control portion in a vertical direction of the display device, when it is rotated; and a circuit unit mounted in the fixed portion to calibrate the color of the display device, such that the calibrator may be fixed in a precise position of the screen and that the screen calibration can be performed precisely and that the calibrator can be attached even to a tilted screen and used widely.

METHODS AND APPARATUS FOR ENHANCING COLOR VISION AND QUANTIFYING COLOR INTERPRETATION

In one embodiment, a method is disclosed that includes selecting a first color sample within a target area in a first image of a first object displayed by a display device; selecting a second color sample within a target area in a second image of a second object displayed in the display device; comparing the first color sample against the second color sample to determine a measure of color difference or a measure of color equivalence between the first color sample of the first object and the second color sample of the second object; and displaying the results of the comparison to a user in the display device. One or more of these functions may be performed with a processor. 128-. (canceled)29. A method comprising:receiving a plurality of digital color images of a reagent dipstick during a time period, the reagent dipstick including a color calibration bar and a plurality of reagent test pads exposed to a biological sample, wherein a color of a first reagent test pad of the plurality of reagent test pads changes over the time period in response to a concentration of a first analyte in the biological sample;receiving a digital color image of a color chart, the color chart including a plurality of colors associated with concentration levels of analytes in the biological sample;determining a gradient of color change of the first reagent test pad from the received plurality of color images of the reagent dipstick;computing an expected gradient of color change for at least one test pad of the plurality of test pads from the received digital image of the color chart; anddetermining the concentration of the first analyte in the biological sample by comparing the determined gradient of color change of the first reagent test pad with the computed expected gradient of color change for the at least one test pad.30. The method of claim 29 , wherein receiving the plurality of digital color images of the reagent dipstick includes capturing the plurality of digital color images of ...

GINGIVAL INDEXING DEVICE AND METHOD FOR INDEXING THE GINGIVA

Gingiva indexing devices and methods with various defined red colour regions have a colour grey card or grey card assigned to it for detecting the gingiva status, in particular for producing a gingival restoration. The devices and method comprise an analysis of at least one region of the gingiva status with regard to its shades of red, the position of the shades of red, the colour profile of the shades of red, their geometry and/or their morphology. The analysis can take place manually and/or digitally, and gingiva information is obtained, in particular in the form of a gingiva map, and optional production of a virtual or real model of a gingival restoration as a reproduction of the missing part of the gums and/or part of gingiva. 1. A method for detecting the gingiva status , the method comprisingA) analyzing at least one region of the gingiva status taking place with respect to its shades of red, the position of the shades of red and/or the colour profile of the shades of red and, optionally, the geometry and/or morphology, wherein the analysis is a digital analysis, and at least one region of the gingiva status and, optionally, one region of the face is detected while using a colour grey card and/or a grey card for calibration, wherein the region of the gingiva is digitally detected, two- or three-dimensionally, in conjunction with the card, wherein digital gingiva information is obtained as a digital data set, or', 'two- or three-dimensional detecting at least one region of the gingiva status and, optionally, of the tooth status and, optionally, of a region of the face and at least one colour region with a shade of red of an indexing device takes place, whereby the detection takes place in conjunction with the detection of at least one part of a colour grey card and/or grey card for calibration, wherein digital gingiva information is obtained as a digital data set., 'wherein analysis A) is performed as a digital analysis, and in which'}, 'B) gingiva information ...

Illumination Device and Method for Calibrating an Illumination Device Over Changes in Temperature, Drive Current, and Time

An illumination device and method is provided herein for calibrating individual LEDs in the illumination device, so as to obtain a desired luminous flux and a desired chromaticity of the device over changes in drive current, temperature, and over time as the LEDs age. The calibration method may include subjecting the illumination device to a first ambient temperature, successively applying at least three different drive currents to a first LED to produce illumination at three or more different levels of brightness, obtaining a plurality of optical measurements from the illumination produced by the first LED at each of the at least three different drive currents, obtaining a plurality of electrical measurements from the photodetector and storing results of the obtaining steps within the illumination device to calibrate the first LED at the first ambient temperature. The plurality of optical measurements may generally include luminous flux and chromaticity, the plurality of electrical measurements may generally include induced photocurrents and forward voltages, and the calibration method steps may be repeated for each LED included within the illumination device and upon subjecting the illumination device to a second ambient temperature. 1a plurality of light emitting diode (LED) chains configured to produce illumination for the illumination device;a photodetector configured for detecting the illumination produced by each of the plurality of LED chains; successively applying at least three different drive currents to each of the plurality of LED chains, one LED chain at a time, to produce illumination at different levels of brightness when the LED chains are subjected to a first ambient temperature;', 'measuring photocurrents induced on the photodetector by the illumination produced by each of the plurality of LED chains at each of the at least three different drive currents;', 'measuring forward voltages that develop across the photodetector before, during or after ...

SPECTRAL CHARACTERISTIC ACQUISITION DEVICE, IMAGE FORMING APPARATUS, AND IMAGE FORMING APPARATUS MANAGEMENT SYSTEM

A spectral characteristic acquisition device according to one aspect of the disclosed technique includes: a color data acquirer comprising a plurality of spectral sensors receiving light reflected from an object irradiated with light and acquiring color data of the object; circuitry configured to estimate a spectral characteristic of the object on a basis of the color data and calibrate the spectral characteristic calculator on a basis of the color data obtained from a calibration color mark having a color mark of a known spectral characteristic; a first conveyer configured to convey the object in a predetermined conveyance direction and conveying the color data acquirer in a direction intersecting the predetermined conveyance direction; and a second conveyer configured to convey the calibration color mark in the predetermined conveyance direction. 1. A spectral characteristic acquisition device comprising:a color data acquirer including a plurality of spectral sensors receiving light reflected from an object irradiated with light and acquiring a color data of the object;circuitry configured to:estimate a spectral characteristic of the object on a basis of the color data, andcalibrate the spectral characteristic calculator on a basis of the color data obtained from a calibration color mark having a color mark of a known spectral characteristica first conveyer configured to convey the object in a predetermined conveyance direction and to convey the color data acquirer in a direction intersecting the predetermined conveyance direction; anda second conveyer configured to convey the calibration color mark in the predetermined conveyance direction.2. The spectral characteristic acquisition device according to claim 1 , wherein the circuitry estimates the spectral characteristic of the object on a basis of the color data with a use of a conversion matrix set in advance claim 1 , and calibrates the conversion matrix on a basis of the color data obtained from the ...

COLORIMETER CALIBRATION SYSTEM AND METHODS

A toy playset with a colorimeter and method of calibration is provided. The colorimeter may include the combination of a microcontroller with multiple switchable output ports, a light source connected to three of the output ports, and a photo transistor for sensing reflected light. The colorimeter may include four different resistors, each of the resistors connected to a corresponding additional one of the output ports, with the four different resistors connected in parallel to the photo transistor. The colorimeter may be programmed to cycle through the resistors and select a calibration based on a low predefined voltage target for reflection from a black surface and a higher predefined voltage target for reflection from a white surface. The light source is a RGB light source having a tri-band wavelength light. 1. A colorimeter comprising:a microprocessor with multiple switchable output ports;a light source connected to three of the output ports;a photo transistor for sensing reflected light;at least two different resistors, each of the resistors connected to a corresponding additional one of the output ports, the at least two different resistors configured to connect the photo transistor to the microprocessor;the microprocessor configured to cycle through the at least two resistors and select a calibration based on a first predefined voltage target for reflection from a first reference surface and a second predefined voltage target for reflection from a second reference surface.2. The colorimeter of claim 1 , wherein selecting a calibration further comprises the microprocessor configured to select a resistor or a set of resistors based on the first predefined voltage target for reflection from the first reference surface and the second predefined voltage target for reflection from the second reference surface;wherein the first predefined voltage target is different than the second predefined voltage target.3. The colorimeter of claim 2 , wherein selecting a ...

Color Measuring Apparatus

A color measuring apparatus includes a measurement assembly which includes at least one illumination assembly for applying substantially parallel illumination light to a measurement spot of a measurement object and a pick-up assembly for capturing the measurement light radiated back from the measurement spot in an observation direction and for converting the same into corresponding electrical signals. The illumination assembly includes at least two illumination subassemblies which illuminate the measurement spot from different illumination sub-directions near a first preset nominal illumination direction, each with preferably parallel illumination light. By the illumination from different illumination sub-directions slightly deviating from the nominal illumination direction, angular errors of the illumination assembly can be compensated for in a simple manner. 1. A color measuring apparatus comprising:{'b': '20', 'a measurement assembly (MA), which includes at least one illumination assembly () for applying substantially parallel illumination light to a measurement spot (MF) of a measurement object (MO), and'}{'b': '50', 'a pick-up assembly () for capturing the measurement light radiated back from the measurement spot (MF) and for converting the same into corresponding electrical signals, the color measurement apparatus comprising{'b': 20', '20', '20', '2', '2', '2, 'i': a', 'b', 'a', 'b, 'wherein the illumination assembly () includes at least two illumination subassemblies (, ), which illuminate the measurement spot (MF) from different illumination sub-directions (, ) near a first preset nominal illumination direction ().'}2222ab. The color measuring apparatus according to claim 1 , wherein the illumination sub-directions ( claim 1 , ) enclose the first nominal illumination direction () between them.322ab. The color measuring apparatus according to claim 1 , wherein the illumination sub-directions ( claim 1 , ) are angularly offset to each other by an angle (Δε) of ...

Method and system for estimating waste metal batch composition

Described herein is a method for recycling aluminum alloy wheels. The method includes the steps of providing a feed of aluminum alloy wheels of a particular alloy; fragmenting a quantity of the aluminum alloy wheels into a plurality of fragments; subjecting the plurality of fragments to shot blasting to remove surface impurities from the plurality of fragments to produce a plurality of shot blasted pieces; separating the plurality of shot blasted pieces into a plurality of larger shot blasted pieces and a plurality of smaller shot blasted pieces; and, estimating a composition of the plurality of larger shot blasted pieces by selecting multiple shot blasted pieces from the plurality of smaller shot blasted pieces and then measuring the composition of the multiple shot blasted pieces.

DEVICE FOR IMAGING AND DELIVERING SPECTROSCOPIC INFORMATION

A device for imaging and delivering spectroscopic information comprises an objective (), an image sensor () and an optical component () having a spectral differentiation function. The optical component having a spectral differentiation function modifies the image of a point in different ways for at least two colours, so that a form of the image of the point delivers spectroscopic information that appears directly in the image as captured by the image sensor. Such device may be used in a detection and/or surveillance system, which then possesses a lower probability of false alarm value. 1. A device for imaging and delivering spectroscopic information , comprising:an objective, adapted to form in a focal plane an image of a scene that is contained in an entrance optical field of the device;an image sensor, which is disposed in the focal plane to capture the image of the scene; andat least one optical component having a spectral differentiation function, which is placed on a path of light rays between the scene and the focal plane, said optical component being adapted to modify an image of a point of the scene when the objective is provided with said optical component, when compared to the image of the same point of the scene as formed by the objective devoid of said optical component, in different ways for at least two possible colours for the light rays that originate from the point of the scene, so that a form of the image of the point of the scene, which appears in the image as captured by the image sensor, delivers spectroscopic information about said point of the scene,wherein the optical component having a spectral differentiation function is adapted to phase-shift light rays that come from a same point of the scene but that pass through two different portions of a transverse section of the device, in accordance with a first phase shift difference effective between said two portions for a first colour possible for said light rays, and in accordance with a second ...

METHOD FOR DETECTING VARIATION VALUE

Embodiments of the present disclosure provides a method for detecting variation value comprising selecting a numerical value in a first time interval as a comparison basis; selecting a numerical value in a second time interval as a inspection interval; statistically identifying the numerical value of the inspection interval and the numerical value of the comparison basis are to detect a variation value. 1. A method for detecting variation value , wherein the method comprises:selecting a numerical value in a first time interval as a comparison basis;selecting a numerical value in a second time interval as a inspection interval; andstatistically identifying the numerical value of the inspection interval and the numerical value of the comparison basis are to detect a variation value.2. The detection method according to claim 1 , wherein the number of the variation values and the degree of variation of the variation values are counted.3. The detection method according to claim 1 , wherein when the numerical value of the inspection interval and the numerical value of the comparison basis are statistically identified claim 1 , the nonparametric statistics is employed.4. The detection method according to claim 1 , wherein when the numerical value of the inspection interval and the numerical value of the comparison basis are statistically identified claim 1 , Levene detection algorithm in the nonparametric statistics is employed.5. The detection method according to claim 4 , wherein when Levene detection algorithm in the nonparametric statistics is employed to statistically identify the numerical value of the inspection interval and the numerical value of the comparison basis claim 4 , the data is represented in columns to obtain the conversion data; for the conversion data of each column claim 4 , the number of the column is subtracted from the mean of the column and the absolute value is taken claim 4 , and the processed conversion data is subjected to one-way ANOVA.6. ...

Methods for Assaying Polymers Using an Integrated Computational Element

Various molecular characteristics of a polymer may be determined using an integrated computational element to assay the polymer. Methods for assaying a polymer can comprise optically interacting electromagnetic radiation with a polymer and an integrated computational element; and determining a molecular characteristic of the polymer, using the integrated computational element. The molecular characteristic of the polymer may be used to determine a bulk characteristic of a fluid phase in which the polymer may be disposed. 1. A method comprising:optically interacting electromagnetic radiation with a polymer and an integrated computational element; anddetermining a molecular characteristic of the polymer, using the integrated computational element.2. The method of claim 1 , wherein the molecular characteristic of the polymer comprises a polymer property selected from the group consisting of molecular weight claim 1 , molecular weight distribution claim 1 , degree of crosslinking claim 1 , degree of branching claim 1 , degree of substitution claim 1 , uniformity of substitution claim 1 , crystallinity claim 1 , crystalline melting temperature claim 1 , glass transition temperature claim 1 , and any combination thereof.3. The method of claim 1 , wherein the polymer is optically interacted as a solid phase with the electromagnetic radiation.4. The method of claim 1 , wherein the polymer is present in a fluid phase while optically interacting with the electromagnetic radiation.5. The method of claim 4 , further comprising:determining a bulk characteristic of the fluid phase from the molecular characteristic of the polymer.6. The method of claim 5 , wherein the bulk characteristic comprises a viscosity of the fluid phase.7. The method of claim 4 , wherein the fluid phase comprises a treatment fluid.8. The method of claim 1 , further comprising:detecting the electromagnetic radiation that has optically interacted with the polymer and the integrated computational element; ...

LED CLASSIFICATION METHOD, LED CLASSIFICATION DEVICE, AND RECORDING MEDIUM

An LED classification device classifies LEDs, the LEDs each including a combination of an LED element that emits a primary light and a phosphor that, upon excitation by the primary light, emits a secondary light having a longer wavelength than the primary light, the LEDs each emitting a combined light of the primary light and the secondary light, those ones of the LEDs whose primary lights having their chromaticities falling within a predetermined chromaticity range being classified as LEDs for use in a backlight of a liquid crystal display apparatus. The LED classification device calculates, for all of the LEDs to be classified, correction values for the chromaticities as obtained on the assumption that the primary lights have traveled through a color filter of the liquid crystal display apparatus, and correct chromaticities by subtracting the correction values from chromaticities obtained for all of the LEDs to be classified, respectively. 1. A method for classifying LEDs , the LEDs each including a combination of an LED element that emits a primary light and phosphor that , upon excitation by the primary light , emits a secondary light having a longer wavelength than the primary light , the LEDs each emitting a combined light of the primary light and the secondary light , those ones of the LEDs whose primary lights have their chromaticities falling within a predetermined chromaticity range being classified as LEDs for use in a backlight of a liquid crystal display apparatus ,the method comprising:a chromaticity correcting step of calculating, for all of the LEDs to be classified, correction values for the chromaticities as based on transmission of the primary lights through a color filter in the liquid crystal display apparatus, and of correcting the chromaticities as corrected chromaticities on a basis of the correction values for all of the LEDs to be classified; anda chromaticity rank classification step of classifying the LEDs according to chromaticity rank ...

Keyboard circuit board testing system

A testing system is provided for testing a keyboard circuit board. The keyboard circuit board includes plural light emitters and plural light receivers. The keyboard circuit board testing system includes a first fixture, a second fixture and a computing device. The first fixture includes plural first recesses. The plural light emitters and the plural light receivers are accommodated within the first recesses. The second fixture includes plural test switches. The computing device is electrically connected with the keyboard circuit board, and executes a test program. The keyboard circuit board is clamped between the first fixture and the second fixture. The test program controls the plural light emitters to emit light beams to the corresponding light receivers. The test switches selectively interrupt or conduct optical paths of the light beams. The test program measures voltage changes of the light receivers, and generates a test record.

EVALUATOR, MEASUREMENT APPARATUS, EVALUATING METHOD, AND NON-TRANSITORY RECORDING MEDIUM

An evaluating method includes obtaining, by an imaging device, a two-dimensional reflected light amount distribution of a surface of a target; classifying, by one or more processors, the surface into a plurality of areas on the basis of chromaticity information of the two-dimensional reflected light amount distribution; and evaluating, by one or more processors, appearance characteristics of the target on the basis of respective sets of chromaticity information of the areas. 1. An evaluating method comprising:obtaining, by an imaging device, a two-dimensional reflected light amount distribution of a surface of a target;classifying, by one or more processors, the surface into a plurality of areas on the basis of chromaticity information of the two-dimensional reflected light amount distribution; andevaluating, by one or more processors, appearance characteristics of the target on the basis of respective sets of chromaticity information of the areas.2. The evaluating method according to claim 1 , whereinthe evaluating includes evaluating the appearance characteristics of the target using an average of chromaticity information for each of the areas.3. The evaluating method according to claim 1 , further comprisingsetting a threshold value for the chromaticity information of the two-dimensional reflected light amount distribution,whereinthe classifying includes determining a pixel having chromaticity information greater than or equal to the threshold value as belonging to a particle area and a pixel having chromaticity information smaller than the threshold value as belonging to a base area.4. The evaluating method according to claim 1 , further comprisingsetting a particle area extraction threshold value and a base area extraction threshold value for the chromaticity information of the two-dimensional reflected light amount distribution,whereinthe classifying includes determining a pixel having chromaticity information greater than or equal to the particle area ...

DISPLACEMENT SENSOR, SPECTRAL CHARACTERISTIC MEASURING APPARATUS, COLOR MEASURING APPARATUS, PLANAR MEASURED OBJECT QUALITY MONITORING APPARATUS, DISPLACEMENT MEASURING METHOD, SPECTRAL CHARACTERISTIC MEASURING METHOD, AND COLOR MEASURING METHOD

A displacement sensor includes a light source unit configured to apply light with different plural wavelengths in a direction oblique to a measurement region of a planar measured object, a spectroscope configured to measure spectral distribution of light reflected by the measurement region, a feature amount extracting module configured to extract a feature amount of the spectral distribution, and a displacement calculating module configured to calculate displacement of the measurement region based on the extracted feature amount and a relation between displacement and a feature amount acquired previously. 1. A displacement sensor comprising:a light source unit configured to apply light with different plural wavelengths in a direction oblique to a measurement region of a planar measured object;a spectroscope configured to measure spectral distribution of light reflected by the measurement region;a feature amount extracting module configured to extract a feature amount of the spectral distribution; anda displacement calculating module configured to calculate displacement of the measurement region based on the extracted feature amount and a relation between displacement and a feature amount acquired previously.2. The displacement sensor as claimed in claim 1 , wherein the light source unit applies the light claim 1 , whose wavelength changes according to an emission direction claim 1 , in the direction oblique to the measurement region.3. The displacement sensor as claimed in claim 2 , wherein the light source unit includes a light source configured to emit light claim 2 , and an optical element in which a transmission wavelength or a reflection wavelength changes according to an incidence angle or an incidence position.4. The displacement sensor as claimed in claim 2 , wherein the feature amount extracting module extracts a peak wavelength of the spectral distribution as a feature amount.5. The displacement sensor as claimed in claim 1 , wherein the light source unit ...

Unevenness inspection apparatus and unevenness inspection method

An unevenness inspection apparatus including: an image pickup section obtaining a pickup image of a test object; an image generating section generating each of a color unevenness inspection image and a luminance unevenness inspection image based on the pickup image; a calculating section calculating an evaluation parameter using both of the color unevenness inspection image and the luminance unevenness inspection image; and an inspecting section performing unevenness inspection using the calculated evaluation parameter. The calculating section calculates the evaluation parameter in consideration of unevenness visibility for both color and luminance.

System for distributing and controlling color reproduction at multiple sites

In the color imaging system, multiple rendering devices are provided at different nodes along a network. Each rendering device has a color measurement instrument for calibrating the color presented by the rendering device. A rendering device may represent a color display in which a member surrounds the outer periphery of the screen of the display and a color measuring instrument is coupled to the first member. The color measuring instrument includes a sensor spaced from the screen at an angle with respect to the screen for receiving light from an area of the screen. A rendering device may be a printer in which the measuring of color samples on a sheet rendered by the printer is provided by a sensor coupled to a transport mechanism which moves the sensor and sheet relative to each other, where the sensor provides light from the sample to a spectrograph. The color measuring instruments provide for non-contact measurements of color samples either displayed on a color display, or printed on a sheet, and are self-calibrating by the use of calibration references in the instrument.

Automated color tuning of an led based illumination device

The color of light emitted by an assembled light emitting diode (LED) based illumination device with at least two different wavelength converting materials is automatically tuned to within a predefined tolerance of a target color point by modifying portions of the wavelength converting materials. The color of light emitted from the assembled LED based illumination device is measured and a material modification plan is determined based at least in part on the measured color of light and a desired color of light to be emitted. The material modification plan may further include the location of the wavelength converting materials to be modified. The wavelength converting materials are selectively modified in accordance with the material modification plan so that the assembled LED based illumination device emits a second color of light that is within a predetermined tolerance of a target color point.

DISPLACEMENT SENSOR, SPECTRAL CHARACTERISTIC MEASURING APPARATUS, COLOR MEASURING APPARATUS, PLANAR MEASURED OBJECT QUALITY MONITORING APPARATUS, DISPLACEMENT MEASURING METHOD, SPECTRAL CHARACTERISTIC MEASURING METHOD, AND COLOR MEASURING METHOD

A displacement sensor includes a light source unit configured to apply light with different plural wavelengths in a direction oblique to a measurement region of a planar measured object, a spectroscope configured to measure spectral distribution of light reflected by the measurement region, a feature amount extracting module configured to extract a feature amount of the spectral distribution, and a displacement calculating module configured to calculate displacement of the measurement region based on the extracted feature amount and a relation between displacement and a feature amount acquired previously. 1. A displacement sensor comprising:a light source unit configured to apply measuring light in a direction oblique to a surface including a measurement region of a planar measured object;a spectroscope configured to measure a spectral distribution of the measuring light reflected by the measurement region;a feature amount extracting module configured to extract a feature amount of the spectral distribution; anda displacement calculating module configured to calculate a displacement of the measurement region based on the extracted feature amount and a relation between the displacement and a feature amount acquired previously,wherein the light source unit includes a light source configured to emit light with a wavelength of a predetermined range, and an optical element in which a transmission wavelength or a reflection wavelength changes according to an incidence angle or an incidence position,wherein the measuring light is light whose wavelength changes according to an emission direction, which is generated by applying the light from the light source to the optical element obliquely at an angle where an optical axis of the light source is constant,wherein a wavelength distribution is generated on the surface including the measurement region by the measuring light so that the light reflected from the measurement region is changed according to the displacement of the ...

TUNABLE ELECTRO-OPTIC FILTER STACK

A holographic polymer dispersed liquid crystal (HPDLC) tunable filter exhibits switching times of no more than 20 microseconds. The HPDLC tunable filter can be utilized in a variety of applications. An HPDLC tunable filter stack can be utilized in a hyperspectral imaging system capable of spectrally multiplexing hyperspectral imaging data acquired while the hyperspectral imaging system is airborne. HPDLC tunable filter stacks can be utilized in high speed switchable optical shielding systems, for example as a coating for a visor or an aircraft canopy. These HPDLC tunable filter stacks can be fabricated using a spin coating apparatus and associated fabrication methods. 1. A switchable optical shielding system comprising a visor integrated with a holographic polymer dispersed liquid crystal tunable filter , the holographic polymer dispersed liquid crystal tunable filter capable of switching between respective transparent and reflective states in no more than 20 microseconds.2. The switchable optical shielding system of claim 1 , wherein when in the reflective state claim 1 , the holographic polymer dispersed liquid crystal tunable filter is capable reflecting light incident upon visor throughout a wavelength range of approximately 780 nm to approximately 3 μm.3. The switchable optical shielding system of claim 1 , further comprising an aviator helmet coupled to the visor.47. The switchable optical shielding system of claim 3 , further comprising a sensor communicatively coupled to the visor claim 3 , the sensor configured to transmit a switching signal to the visor when light of a particular wavelength is sensed by the sensor claim 3 , the sensor attached to the aviator helmet.5. The switchable optical shielding system of claim 1 , further comprising a sensor communicatively coupled to the visor claim 1 , the sensor configured to transmit a switching signal to the visor when light of a particular wavelength is sensed by the sensor.6. The switchable optical shielding ...

Hand-Held Measurement Device for Capturing the Visual Impression of a Measurement Object

A hand-held measurement device for appearance analyses includes a measurement array which comprises a number of illumination means for applying illumination light to a measurement field in at least three illumination directions and a number of pick-up means for capturing the measurement light in at least one observation direction. The illumination directions and the observation directions lie in a common system plane. At least one pick-up means is embodied to spectrally gauge the measurement light in a locally integral way, and at least one imaging pick-up means is embodied to gauge the measurement light in terms of colour in a locally resolved way. The spectral pick-up means and the locally resolving pick-up means are arranged such that they receive the measurement light reflected by the measurement field under the same observation conditions and in particular from the same observation direction. 131-. (canceled)32. A method of accurately capturing a color digital image of a surface of a measurement object , comprising:a. providing a plurality of light sources in a common plane and oriented to provide at least three illumination directions in relation to a direction normal to the surface;b. providing a spectrometer oriented in at least one observation direction in relation to the direction normal to the surface, the observation direction also lying in the common plane, the spectrometer configured to provide spectral information;c. providing a digital color camera, the digital color camera configured to provide color image data;d. providing a beam splitter in the at least one observation direction beam path, wherein the beam splitter divides a common beam path, and directs a portion of the common beam path onto the spectrometer and another portion out of the common plane and onto the color camera, and wherein the beam splitter is arranged such that it is rotated about the common beam path and out of the system plane by essentially 45′ such that the measurement light ...

METHOD OF DETERMINING CHROMATICITY RANK OF LIGHT EMITTING DEVICE

A method of determining a chromaticity rank of a light emitting device includes selecting the light emitting device having a chromaticity rank in a region surrounded by four defining points on a 1931 CIE Chromaticity Diagram. A ratio of a distance in a y-direction between, of the four defining points, two defining points furthest from each other in the y-direction to a distance in an x-direction between, of the four defining points, two defining points furthest from each other in the x-direction is 0.5 or less A peak light emission wavelength of the blue light emitting element is in a range of 447 to 452 nm, a peak light emission wavelength of the green light emitting element is in a range of 520 to 541 nm, and a peak light emission wavelength of the red light emitting element is in a range of 630 to 632 nm. 1. A method of determining a chromaticity rank of a light emitting device having a chromaticity so that a color display on a liquid crystal display board , for which the light emitting device is used , has a chromaticity in a predetermined chromaticity range , the method comprising:measuring a chromaticity of a light emitting device including a blue light emitting element, a green light emitting element, and a red light emitting element or a red fluorescent member; andselecting the light emitting device for use in a color display on a liquid crystal display board when the light emitting device has a chromaticity rank in a region surrounded by four defining points on a 1931 CIE Chromaticity Diagram, wherein a ratio of a distance in a y-direction between, of the four defining points, two defining points furthest from each other in the y-direction to a distance in an x-direction between, of the four defining points, two defining points furthest from each other in the x-direction is 0.5 or less, andwherein a peak light emission wavelength of the blue light emitting element is in a range of 447 to 452 nm, a peak light emission wavelength of the green light emitting ...

DEVICE AND METHOD FOR TESTING DISPLAY PANEL

Disclosed are display panel test device and method. The device comprises: a color analyser including a host and a measuring probe, wherein the measuring probe can obtain optical information of a positional point of a light emitting surface of display panel, the positional point being a point to which the measuring probe is aligned on the light emitting surface, and the host can determine optical characteristics of the positional point according to the optical information; and a position determination component, configured to determine a positional identifier of the positional point on the light emitting surface, the positional identifier being capable of indicating a relative position of the positional point on the light emitting surface. Since the position determination component determines the position of the to-be-tested point, it is not necessary to visually place the measuring probe over the to-be-tested point, thereby improving the determination accuracy of the to-be-tested point. 1. A display panel test device , comprising:a color analyser, including a host and a measuring probe, wherein the measuring probe is configured to obtain optical information of a positional point on a light emitting surface of a display panel, the positional point being a point to which the measuring probe is aligned on the light emitting surface of the display panel, and the host is configured to determine optical characteristics of the positional point according to the optical information; anda position determination component, configured to determine a positional identifier of the positional point on the light emitting surface of the display panel, the positional identifier being capable of indicating a relative position of the positional point on the light emitting surface of the display panel.2. The display panel test device according to claim 1 , whereinthe measuring probe comprises a measuring rod and a probe body disposed at one end of the measuring rod, the position ...

APPARATUS FOR MONITORING HOT WASTE WATER DISCHARGED FROM POWER PLANT BY USING AIRBORNE MULTISPECTRAL SCANNER SYSTEM

Disclosed is an apparatus for monitoring hot waste water discharged from a power plant by using an airborne multispectral scanner system. The apparatus includes a first detector including a first image data collecting unit to obtain first image data and a liquid-phase nitrogen storing tank used to cool an image obtaining sensor, a second detector including a second image data collecting unit to obtain second image data, and a liquid-phase nitrogen storing tank used to cool an image obtaining sensor, a controller to process the first and second image data obtained by the first detector and the second detector, respectively, and an auxiliary liquid-phase nitrogen tank separated from the liquid-phase nitrogen storing tank. The auxiliary liquid-phase nitrogen tank complements liquid-phase nitrogen for cooling. 1. An apparatus for monitoring hot waste water discharged from a power plant by using an airborne multispectral scanner system , the apparatus comprising:a first detector comprising a first image data collecting unit to obtain first image data by collecting a data image, which is introduced through an opening and reflected by a scanning reflector having a motor attached thereto, onto a paraboloidal reflector, and a liquid-phase nitrogen storing tank used to cool an image obtaining sensor;a second detector comprising a second image data collecting unit to obtain second image data by collecting the data image, which is introduced through an opening and reflected by the scanning reflector having a motor attached thereto, onto a paraboloidal reflector, and a liquid-phase nitrogen storing tank used to cool an image obtaining sensor;a controller to process the first and second image data obtained by the first detector and the second detector, respectively; andan auxiliary liquid-phase nitrogen tank separated from the liquid-phase nitrogen storing tank.2. The apparatus of claim 1 , wherein the liquid-phase nitrogen storing tank comprises a nitrogen pressure outlet at an ...

System and Method for Measuring Color or Shade of an Object

A color or shade assessment system and a method of assessing color or shade of an object. The system may include a color or shade measurement device having a probe portion terminating at a distal end, a light emitter assembly, and a light receiver assembly. Furthermore, a spacer including a sleeve extending from a proximal end to a distal end and defining a passageway may be coupled to the probe portion. The spacer may be alterable between (1) a first state in which the spacer is detached from the probe portion; and (2) a second state in which at least a portion of the probe portion extends into the central passageway of the sleeve and the distal end of the probe portion is located between the proximal and distal ends of the sleeve. 1. A tooth assessment system comprising: a probe portion terminating at a distal end;', 'a light emitter assembly configured to generate and emit light from the distal end of the probe portion;', 'a light receiver assembly configured to receive a portion of the light that has been emitted from the distal end of the probe portion and returned to the distal end of the probe portion as received light and generate data indicative of a color or a shade based on the received light;, 'a color or shade measurement device comprisinga spacer detachably coupled to the probe portion so as to be alterable between a first state in which the spacer is detached from the probe portion and a second state in which the spacer is coupled to the probe portion and protrudes beyond the distal end of the probe portion; andwherein the spacer and the light emitter assembly are configured such that: (1) in the first state, the light emitted from the distal end of the probe portion penetrates into both an enamel layer and a dentin layer of a tooth when the distal end of the probe portion is placed into contact with the tooth; and (2) in the second state, the light emitted by the distal end of the probe portion does not penetrate beyond the enamel layer of the tooth ...

APPARATUS AND METHODS FOR EXTRACTING TOPOGRAPHIC INFORMATION FROM INSPECTED OBJECTS

Systems and methods for extracting topographic information from inspected objects to identify defects in the inspected objects. A part to be inspected is illuminated with at least two different colors emitted from an illuminator providing a gradient of light consisting of the at least two different colors. A single color image of the illuminated part to be inspected is acquired, providing a color-coded topographic mapping of the part to be inspected due, at least in part, to the gradient of light. Topographic monochrome views of the part to be inspected may be generated from the single color image. Each view of the topographic monochrome views may enhance a different type of feature or defect present in the part to be inspected which can be analyzed and detected. 1. A system comprising:an illuminator, for illuminating a part to be inspected, configured to provide a gradient of light consisting of at least two different colors;a color camera positioned near a distal end of the illuminator, defining an optical axis through an interior portion of the illuminator, wherein the gradient of light is along the direction of the optical axis;a controller component operatively connected to the illuminator and the color camera and configured to trigger the illuminator and the color camera to acquire a single color image of the part to be inspected located near a proximal end of the illuminator; anda processing component operatively connected to the color camera and configured to receive and process the single color image to generate two or more topographic monochrome views of the part to be inspected from the single color image.2. The system of claim 1 , wherein the illuminator is configured to illuminate the part to be inspected such that the acquired single color image provides a color-coded topographic mapping of the part to be inspected.3. The system of claim 1 , wherein the two or more topographic monochrome views are inherently spatially registered with each other.4. The ...

COLOUR REFERENCE FOR CALIBRATING A DENTAL COLOUR CAMERA

The invention relates to a color reference for calibrating a dental color camera comprising a plurality of fields. A surface of the color reference comprises color fields for color calibration as well as white fields and/or gray fields for a white balance and/or a shading correction. 1. Color reference for calibrating a dental color camera comprising a plurality of fields having a first color field and a second color field , wherein a surface of the color reference includes color fields for color calibration and white fields and/or gray fields for white balance and/or shading correction , wherein the white fields and/or the gray fields are evenly distributed over the surface of the color reference.2. Color reference according to claim 1 , wherein the color fields include at least three different colors.3. Color reference according to claim 1 , wherein the plurality of fields have a rectangular shape claim 1 , wherein the color fields and the white fields and/or the gray fields are alternately arranged relative to one another claim 1 , in the form of a checkerboard.4. Color reference according to claim 3 , wherein the plurality of fields have a square shape.5. Color reference according to claim 1 , wherein the plurality of fields are immediately adjacent to one another.6. Color reference according to claim 1 , wherein the color reference further comprises a holder claim 1 , wherein the holder is configured to be attached to a color camera in order to arrange the color reference at a defined distance and with a defined orientation relative to the color camera.7. Method for calibrating a dental color camera using the color reference according to claim 1 , wherein the method comprises the steps of:recording the color reference by a dental color camera,producing an optical image,determining a color value and/or at least one brightness value for at least one pixel of at least four of the recorded white fields and/or gray fields and the white balance and/or the shading ...

Texture analysis of a painted surface using specular angle data

A computer implemented method. The method includes obtaining, using a processor, spectral reflectance data from a spectrophotometric measurement of a target coating on a surface, wherein the measurement was taken at a specular angle, and removing, using the processor, at least a portion of the specular reflectance data that is attributable to a glossy coating of the surface. The method also includes constructing, using the processor, at least one spectral reflectance curve, and identifying, using the processor, at least one type of pigmentation effect of the target coating based at least in part on the at least one spectral reflectance curve.

MINIATURE LIGHT SENSING ASSEMBLY

The present invention provides a miniature light sensing assembly comprising a light sensing device, a computing device and a connecting member. The light sensing device comprises a main body having an entrance, a light detecting unit disposed in the main body and receiving light travelling through the entrance, a processing module disposed in the main body and converting the light into a photoelectric signal, a connecting unit disposed on the main body, and a signal transmitting module transmitting the photoelectric signal wirelessly. The connecting member is adapted to couple with the light sensing device through the connecting unit. The photoelectric signal is transmitted from the signal transmitting module to the computing device wirelessly and converted into information required by a user by the computing device. 1. A miniature light sensing assembly , comprising: a main body having an entrance;', 'a light detecting unit disposed in the main body and receiving light travelling through the entrance;', 'a processing module disposed in the main body and converting the light into a photoelectric signal;', 'a connecting unit disposed on the main body; and', 'a signal transmitting module transmitting the photoelectric signal by pixel wirelessly;, 'a light sensing device comprisinga computing device; anda connecting member adapted to couple with the light sensing device through the connecting unit,wherein the computing device is configured to, upon execution of machine readable instructions: sending an instruction on exposure time to the light sensing device, receiving the photoelectric signal by pixel transmitted by the signal transmitting module, converting the photoelectric signal by pixel into an electric signal by wavelength, calculating spectrum-related or photometric-related information based on the electric signal by wavelength, and displaying the spectrum-related or photometric-related information.2. The miniature light sensing assembly of claim 1 , wherein ...

Color detection system for display

A color detection system includes a motherboard, a detection device, and a detection card. The detection device comprises a display unit and a memory unit storing a first color frequency setting value. The display unit displays a first color according to the color frequency setting value. The detection card includes a color sensor, a microcontroller, and a first connector. The color sensor generates a first color frequency current value after sensing the first color from the display unit and sends the first color frequency current value to the microcontroller. The microcontroller sends the first color frequency current value to the motherboard And the motherboard outputs detection success information to the display unit when a first difference value between the first color frequency current value and the first color frequency setting value is less than a predetermined value. The display unit displays the detection success information.

System for matching coarseness appearance of coatings

Systems and method for matching appearance of a target coating on a substrate is provided herein. The system includes a coating chip including a chip coating layer. The chip coating layer has a chip coarseness. The system further includes an illumination component configured to illuminate the chip coating layer with a light having an illumination color. The chip coating layer exhibits the chip coarseness and the illumination color in the presence of the light having the illumination color. The chip coating layer exhibiting the chip coarseness and the illumination color is utilized for matching the appearance of the target coating.

OPTICAL SENSING CIRCUIT AND METHOD FOR DETERMINING LIGHT COLOR BY USING THE SAME

An optical sensing circuit includes a capacitor, and a light sensing unit, a compensation unit, and a switching element coupled to the capacitor. The light sensing unit includes a first light sensing transistor for sensing a first color. The compensation unit includes a second light sensing transistor for sensing a second color. The spectra of the second color and the first color do not overlap each other. When the light illuminates, the light sensing unit generates a first current and the compensation unit generates a second current. The second current reduces the magnitude of the charging or discharging current when the capacitor is charged or discharged by the first current. When the switching element turned on, the voltage of the capacitor is read to determine the color of the light. The voltage level of the gate of the first or second light sensing transistor is adjustable. 1. An optical sensing circuit , comprising:a capacitor;a light sensing unit, electrically connected to the capacitor, wherein the light sensing unit comprises a first light sensing transistor and is configured to sense a first color;a compensation unit, electrically connected to the capacitor, wherein the compensation unit comprises a second light sensing transistor and is configured to sense a second color, the spectrum of the second color and the spectrum of the first color do not overlap with each other;a switching element, electrically connected to the capacitor;wherein when a light illuminates the light sensing unit and the compensation unit, a first light component of the light corresponding to the first color causes the light sensing unit to generate a first current, and a second light component of the light corresponding to the second color causes the compensation unit to generate a second current, the second current reduces the magnitude of the charging current or the discharging current when the capacitor is charged or discharged by the first current;wherein when the switching ...

PROCESS AND SYSTEM FOR COLOUR GRADING FOR DIAMONDS

A process is operable using a computerized system for grading the colour of a diamond using a pre-trained neural network for determination of a colour grading. The computerized system includes an optical image acquisition device, a pre-trained neural network and an output module operably interconnected together via a communication link. The process includes: (i) acquiring via an optical image acquisition device one or more optical image of at least a portion of a diamond; and (ii) in a pre-trained neural network, providing a regressive value associated with the colour grade of the diamond. 1. A process operable using a computerized system for grading the colour of a diamond using a pre-trained neural network for determination of a colour grading , the computerized system including an optical image acquisition device , a pre-trained neural network and an output module operably interconnected together via a communication link , said process including the steps of:(i) acquiring via an optical image acquisition device one or more optical image of at least a portion of a diamond, wherein the one or more optical image are acquired at a predetermined angle of with respect to the central axis of the diamond wherein the central axis extends normal to the table and through the apex of the pavilion of the diamond and in a direction of towards the table, and wherein the one or more optical image is acquired in an environment having a predetermined constant light level;(ii) in a pre-trained neural network, providing a regressive value associated with the colour grade of said diamond based on the one or more optical images of at least a portion of said diamond acquired during step (i);wherein the pre-trained neural network has been pre-trained utilising optical images acquired from a plurality of diamonds each having a pre-assigned colour grade assigned thereto,wherein said plurality of diamonds includes a plurality of diamonds of each pre-assigned colour grading,wherein of one ...

SYSTEM AND METHOD OF ESTIMATING SPECTRAL CONTRIBUTIONS IN AMBIENT LIGHT AND CORRECTING FIELD OF VIEW ERRORS

The present disclosure describes systems, methods, and devices for estimating spectral contributions in ambient light. The present disclosure also describes systems, methods, and devices for compensating for field of view errors resulting from the user, contextual structures (e.g., buildings, trees, fixtures, or geological formations), atmospheric effects (e.g., ozone coverage, smog, fog, haze, or clouds), device structures, and/or device orientation/tilt relative to a light source being measured (e.g., sun, indoor/outdoor light emitter, or an at least partially reflective surface). The present disclosure also describes systems, methods, and devices for estimating spectral contributions in light or color measurements and accounting for field of view errors to obtain a refined estimate. 1. A method of estimating spectral contributions in ambient light , comprising:receiving a light measurement of a mobile device, the light measurement having a spectral response;receiving a location and a time associated with the light measurement of the mobile device;providing a spectral correction factor appropriate to the location and the time associated with the light measurement of the mobile device;scaling the light measurement of the mobile device by the spectral correction factor to obtain a target measure;detecting light within two or more differing fields of view; andscaling the light measurement of the mobile device with a correction factor based upon the detected light within the two or more differing fields of view.2. The method of claim 1 , wherein the spectral correction factor is based upon a target spectrum relative to the spectral response of the light measurement of the mobile device according to a light model appropriate to the location and the time associated with the light measurement of the mobile device.3. The method of claim 2 , wherein the target spectrum comprises at least one of: an UV index claim 2 , a visible color spectrum claim 2 , human erythema action ...

MULTI-ANGULAR COLOR, OPACITY, PIGMENT CHARACTERIZATION AND TEXTURE ANALYSIS OF A PAINTED SURFACE VIA VISUAL AND/OR INSTRUMENTAL TECHNIQUES

A computer implemented method. The method includes performing at least one of a visual evaluation and an instrument measurement of a target coating on a target sample to generate colorimetric information, and identifying, using a processor, a bulk toner that is present in the target coating by determining a color and a color intensity at different viewing angles relative to the target sample. The method also includes identifying, using the processor, at least one specific toner that is present in the target coating by detecting a presence and an orientation of colored and/or non-colored pigmentation effects that are present in the target coating, and outputting, using the processor, a formulation of the target coating that includes at least the at least one specific toner. 1. A computer implemented method for evaluating colorimetric attributes of cured complex coating mixtures , the method comprising:performing a spectrophotometer measurement of a target coating on a target sample to generate colorimetric information;identifying, using a processor, a bulk toner that is present in the target coating; detecting a presence and an orientation of colored and/or non-colored pigmentation effects that are present in the target coating,', 'receiving an in-plane spectrophotometer measurement of one or more first colors of the target coating at a single in-plane angle,', 'receiving an out-of-plane spectrophotometer measurement of one or more second colors of the target coating at a single out-of-plane angle, wherein the in-plane spectrophotometer measurement comprises different information than the out-of-plane spectrophotometer measurement,', 'comparing data from the in-plane spectrophotometer measurement and data from the out-of-plane spectrophotometer measurement to data within a database that comprises information for each specific toner,', 'identify that the one or more first colors, which are measured from the single in-plane angle, are not within a particular tolerance ...

Light detection device and electronic apparatus

A light detection device includes a semiconductor substrate, a signal detection light receiving portion that is formed in the semiconductor substrate, an infrared light receiving portion that is formed in the semiconductor substrate, a first color filter that covers the signal detection light receiving portion and that has a first spectral characteristic such that the first color filter passes therethrough light in a first wavelength range within the wavelength range of visible light and in the wavelength range of infrared light, a second color filter that covers the infrared light receiving portion and that has a second spectral characteristic such that the second color filter passes therethrough light in a second wavelength range within the wavelength range of visible light and in the wavelength range of infrared light, a third color filter that covers the infrared light receiving portion and that has a third spectral characteristic such that the third color filter passes therethrough light in a third wavelength range different from the second wavelength range within the wavelength range of visible light and in the wavelength range of infrared light, and an infrared cut filter that covers the signal detection light receiving portion and that has an opening in a region opposite to the infrared light receiving portion.

System and method for the harmonization of evaluation between two or more digital data gathering devices

A system and method for harmonizing evaluation results between a plurality of separate digital data gathering devices includes first and second digital data gathering devices each having a lens through which the digital data gathering devices are operative to accept incoming light. The system further includes a calibration device to perform a first initial calibration of the first digital data gathering device during a first initial calibration exposure of the first digital data gathering device, and a second initial calibration of the second digital data gathering device during a second initial calibration exposure of the second digital data gathering device. The first and the second digital data gathering devices adjust subsequent exposures in dependence upon the first and the second initial calibrations, such that the subsequent exposures obtained by the first and the second digital data gathering devices are harmonized with one another through use of the common calibration device.

Sunscreen Verification Device

There is a sunscreen detection device for detecting a sunscreen product, the sunscreen detection device comprising: a substrate; a first light, disposed on the substrate and controllably coupled to a processor, controllable by the processor to emit light at a first light wavelength at the subject's skin when the sunscreen detection device is oriented to emit light on the subject's skin; a first light sensor circuit, disposed on the substrate and communicatively coupled to the processor, capable of sensing a percentage absorption of light by the subject's skin at the first light wavelength (% AbsAtWL1) and communicating the % AbsAtWL1 to the processor; a processor, configured to: cause the first light to emit light when the sunscreen detection device is oriented to emit light on the subject's skin; record the % AbsAtWL1 from the first light sensor; and assess a level of sunscreen protection based at least on the % AbsAtWL1.

COLORIMETRY APPARATUS

A colorimetry apparatus includes a light projection unit that irradiates a surface under measurement with light and an imaging unit that captures an image of the surface under measurement. The light projection unit includes a light source, a collimator lens that converts light emitted from the light source into parallelized light, and a traveling direction changer that changes the traveling direction of the parallelized light while maintaining parallelism of the parallelized light. The traveling direction changer is disposed in parallel to the surface under measurement, and the direction of the optical axis of the collimator lens coincides with the direction of a normal to the surface under measurement. 1. A colorimetry apparatus comprising:a light projection unit that irradiates a surface under measurement with light; andan imaging unit that captures an image of the surface under measurement,wherein the light projection unit includesa light source,a collimator lens that converts light emitted from the light source into parallelized light, anda traveling direction changer that changes the traveling direction of the parallelized light while maintaining parallelism of the parallelized light, anda light exiting surface of the traveling direction changer through which the parallelized light exits is disposed in parallel to the surface under measurement, and the optical axis of the collimator lens is parallel to a normal to the surface under measurement.2. The colorimetry apparatus according to claim 1 ,wherein the optical path length of the parallelized light from the traveling direction changer to the surface under measurement is fixed within an area where the parallelized light travels.3. The colorimetry apparatus according to claim 1 ,further comprising a filter provided in a position between the traveling direction changer and the surface under measurement, the filter preventing light other than the parallelized light from passing therethrough.4. The colorimetry ...

METHOD AND DEVICE FOR ESTIMATING AMBIENT LIGHT

A method for estimating ambient light at a display screen of a device. The method comprises determining one or more expected colour values of display screen output light, detecting light with a sensor positioned behind the display screen, determining one or more colour values of the detected light, determining a difference between the one or more expected colour values of the display screen output light and the one or more colour values of the detected light, and, from the determined difference, estimating a first portion of the detected light corresponding to the display screen output light and a second portion of the detected light corresponding to ambient light. 1. A method for estimating ambient light at a display screen of a device , the method comprising:determining one or more expected colour values of display screen output light;detecting light with a sensor positioned behind the display screen;determining one or more colour values of the detected light;determining a difference between the one or more expected colour values of the display screen output light and the one or more colour values of the detected light; andfrom the determined difference, estimating a first portion of the detected light corresponding to the display screen output light and a second portion of the detected light corresponding to ambient light.2. The method according to claim 1 , comprising determining an output colour gamut of the display screen for one or more output brightness levels claim 1 , the colour gamut defining a set of expected colour values of light output by the display screen at respective brightness levels.3. The method according to claim 2 , whereindetermining the one or more expected colour values of the display screen output light comprises using the output colour gamut for the corresponding output brightness level.4. The method according to claim 3 ,wherein the set of expected colour values of the output colour gamut comprises a subset of a colour space with red (R ...

COLOR ADJUSTMENT DETERMINATION METHOD AND INFORMATION PROCESSING APPARATUS

A color adjustment determination method is provided that includes forming a color adjustment image on a recording medium by moving a plurality of heads including a plurality of nozzles relative to the recording medium in a relative moving direction and ejecting liquid from the plurality of heads that are arranged in an orthogonal direction orthogonal to the relative moving direction, acquiring colorimetric values of a plurality of portions of the color adjustment image formed by the plurality of heads that are arranged at different positions in the orthogonal direction, calculating a color difference between at least two portions of the plurality of portions of the color adjustment image based on the colorimetric values of the plurality of portions, and determining whether at least one of the plurality of heads that have ejected the liquid requires adjustment based on the calculated color difference. 1. A color adjustment determination method comprising:forming a color adjustment image on a recording medium by moving a plurality of heads including a plurality of nozzles relative to the recording medium in a relative moving direction and ejecting liquid from the plurality of heads that are arranged in an orthogonal direction orthogonal to the relative moving direction;acquiring colorimetric values of a plurality of portions of the color adjustment image formed by the plurality of heads that are arranged at different positions in the orthogonal direction;calculating a color difference between at least two portions of the plurality of portions of the color adjustment image based on the colorimetric values of the plurality of portions; anddetermining whether at least one of the plurality of heads that have ejected the liquid requires adjustment based on the calculated color difference.2. The color adjustment determination method according to claim 1 , whereinan acceptable color difference to be compared with the calculated color difference is stored in advance; andin ...

NANO-SCALE PIXELATED FILTER-FREE COLOR DETECTOR

According to some embodiments of the invention, an electro-optic device includes a first plurality of electrodes, a second plurality of electrodes spaced apart from the first plurality of electrodes, and an active layer between the first plurality of electrodes and the second plurality of electrodes. The active layer comprises a plurality of electromagnetic resonators. At least one of the first plurality of electrodes and the second plurality of electrodes is at least partially transparent to light of a spectral range that can be absorbed or emitted by the plurality of electromagnetic resonators. The first and second plurality of electrodes are electrically connected to the plurality of electromagnetic resonators. The spacings between at least a selected pair of the plurality of electromagnetic resonators is provided such that a real component of a coupling coefficient between the selected pair of the plurality of electromagnetic resonators is substantially canceled. 1. An electro-optic device comprising:a first plurality of electrodes;a second plurality of electrodes spaced apart from said first plurality of electrodes; andan active layer between said first plurality of electrodes and said second plurality of electrodes,wherein said active layer comprises a plurality of electromagnetic resonators,wherein at least one of said first plurality of electrodes and said second plurality of electrodes is at least partially transparent to light of a spectral range that can be absorbed or emitted by said plurality of electromagnetic resonators,wherein said first and second plurality of electrodes are electrically connected to said plurality of electromagnetic resonators, andwherein spacings between at least a selected pair of said plurality of electromagnetic resonators is provided such that a real component of a coupling coefficient between said selected pair of said plurality of electromagnetic resonators is substantially canceled.2. The electro-optic device of claim 1 , ...

MEASUREMENT DEVICE

A measurement device includes: a sensor for sensing a condition of an object to be measured; a plurality of output lines L for outputting a sensing result of the sensor; and a control unit for applying voltages to the plurality of output lines based on the sensing result of the sensor. The control unit performs self-failure diagnosis and outputs a result of the self-failure diagnosis with a combination of the voltages applied to the plurality of output lines L. 1. A measurement device , comprising:a sensing unit configured to sense a condition of an object to be measured;a plurality of output lines for outputting a sensing result of the sensing unit; anda control unit configured to apply voltages to the plurality of output lines based on the sensing result of the sensing unit,wherein the control unit performs self-failure diagnosis and outputs a result of the self-failure diagnosis with a combination of the voltages applied to the plurality of output lines.2. The measurement device according to claim 1 , wherein the combination of the voltages is constituted by values outside a range of sensing values output during normal measurement operation.3. The measurement device according to claim 1 , wherein the combination of the voltages is constituted by a minimum value and a maximum value of each of the output lines.4. The measurement device according to claim 1 , whereinthe sensing unit senses color of the object, andthe plurality of output lines correspond respectively to three primary colors of color information obtained by the sensing unit. The present invention relates to a measurement device.Some conventional pressure sensors have a self-diagnosis function (see, for example, Patent Literature 1). The self-diagnosis function disclosed in Patent Literature 1 is accomplished by a diagnosis means that performs self-diagnosis. When a resonant frequency of an introduction path through which a measurement medium is introduced to a pressure sensing element is outside a ...

APPARATUS FOR MEASURING SPECTRAL HEMISPHERICAL REFLECTANCE OF SAMPLES AT GRAZING ANGLES

Systems and methods are provided for measuring spectral hemispherical reflectance. One embodiment is a system that includes a laser that emits a beam of light, and an optical chopper disposed between the laser and a sample. The chopper blocks the beam while the chopper is at a first angle of rotation, redirects the beam along a reference path while the chopper is at a second angle of rotation, and permits the beam to follow a sample path through the chopper and strike the sample while the chopper is at a third angle of rotation. The system also includes a hollow sphere that defines a slot through which the sample path and reference path enter the sphere. The hollow sphere includes a spectral hemispherical reflectance detector, a mount that receives the sample at the sphere, and an actuator that rotates the sphere about an axis that intersects the sample. 1. A system comprising:a laser that emits a beam of light;an optical chopper disposed between the laser and a sample, the chopper blocks the beam while the chopper is at a first angle of rotation, redirects the beam along a reference path while the chopper is at a second angle of rotation, and permits the beam to follow a sample path through the chopper and strike the sample while the chopper is at a third angle of rotation; and a spectral hemispherical reflectance detector;', 'a mount that receives the sample at the sphere; and', 'an actuator that rotates the sphere about an axis of rotation that intersects the sample., 'a hollow sphere that defines a slot through which the sample path and reference path enter the sphere, the hollow sphere comprising2. The system of further comprising:a light source that emits light onto the chopper;a reflective sensor that measures light from the light source that has been reflected by the chopper; anda controller that determines when the beam is following the reference path, is following the sample path, and is blocked based on input from the reflective sensor, and that ...

Backlight module and display device

A backlight module includes a light source, a light guide plate and a light-adjusting member. A light source chromaticity is measured from light generated by the light source. The light guide plate has a light-incident surface and a light-emitting surface. Light generated by the light source enters the light guide plate and emits out from the light-emitting surface. With the light-adjusting member, a first light guide plate chromaticity is measured from the light-emitting surface. There is a first difference value between the first light guide plate chromaticity and the light source chromaticity. Without the light-adjusting member, a second light guide plate chromaticity is measured from the light-emitting surface. There is a second difference value between the second light guide plate chromaticity and the light source chromaticity. The first difference value is different from the second difference value.

Spectrometric Measuring Head for Forestry, Agricultural and Food Industry Applications

A spectrometric measuring head for forestry, agricultural and food industry applications comprises a housing having a window and a spectrometer that is arranged inside the housing and comprises a dispersive element and a sensor, a first light source for exposing a sample to light, which reaches the spectrometer through the window after having been transmitted and/or reflected by the sample, and a standard that can be exposed to light to provide a reference for the spectrometer, which standard can be exposed to light by a light source arranged in the housing. 1. A spectrometric measuring head for forestry , agricultural and food industry applications , comprising:a housing having a window and a spectrometer that is arranged inside the housing and comprises a dispersive element and a sensor,a first light source for exposing a sample to a first light, which reaches the spectrometer through the window after having been transmitted from the first light source through the window and reflected by the sample, anda standard configured to be exposed to a second light to provide a reference for the spectrometer,a partially transmissive mirror arranged between the window and the spectrometer, configured to provide an optical transmission for the first light reflected by the sample toward the spectrometer, and configured to reflect the second light reflected from the standard into the spectrometer;a filter having an electrically controllable transmissivity and arranged between the partially transmissive mirror and the standard; andwherein the standard is configured to be exposed to the second light by the second light source arranged in the housing.2. The spectrometric measuring head according to claim 1 , wherein the first light source is arranged inside or outside the housing.3. The spectrometric measuring head according to claim 1 , wherein the spectrometer is designed as a micro-electromechanical system (MEMS).4. The spectrometric measuring head according to claim 1 , ...

Diagnosis Assistance Device For Optical Characteristic Measurement Device, And Diagnosis Assistance Method For Optical Characteristic Measurement Device

A diagnosis assistance device assists a diagnosis of an optical characteristic measurement device which operates on the basis of the content of setting stored in a setting storage unit of an optical characteristic measurement device, and includes a first storage unit, a second storage unit, a processing unit, a first command unit, a diagnosis unit, and a second command unit. The first storage unit stores in advance first setting information which indicates the content of setting at the time of diagnosis. The processing unit performs processing of acquiring, from the setting storage unit, second setting information which is stored in advance in the setting storage unit and indicates the content of setting at the time of use, and storing the acquired second setting information in the second storage unit. The first command unit issues a command to store the first setting information stored in the first storage unit in the setting storage unit. The diagnosis unit acquires a measurement result indicating a value measured by the optical characteristic measurement device which operates on the basis of the content of setting indicating the first setting information stored in the setting storage unit. The second command unit issues a command to store the second setting information stored in the second storage unit in the setting storage unit after the measurement result is acquired. 1. A diagnosis assistance device of an optical characteristic measurement device for assisting a diagnosis of the optical characteristic measurement device operated on the basis of a content of setting stored in a hardware processor of the optical characteristic measurement device at a time of use and at a time of diagnosis of the optical characteristic measurement device , comprisinga hardware processor that:stores in advance first setting information indicating the content of setting at the time of diagnosis;performs processing of acquiring, from the hardware processor of the optical ...

DIGITAL PATHOLOGY COLOR CALIBRATION AND VALIDATION

Color calibration for digital pathology is provided. A standard glass slide is prepared with a specimen having zero or more stains. The specimen is scanned a first time using a hyperspectral imaging system to produce a first digital image having XYZ color values. The specimen is scanned a second time using a digital pathology imaging system to produce a second digital image having RGB color values. The first and second digital images are then registered against each other to align the digital image data. Individual pixels of the first and second images may be combined in the registration process so that the first and second digital images have substantially similar pixel sizes. A lookup table is generated to associate XYZ color values to RGB color values. Once the lookup table has been generated, it can be used to present RGB color on a display using the corresponding XYZ color. 1. A method comprising:obtaining a first digital image of a specimen in XYZ color captured by a first imaging system, wherein the first digital image comprises a plurality of XYZ pixels, and wherein each of the plurality of XYZ pixels has an XYZ color value;obtaining a second digital image of the specimen in RGB color captured by a second imaging system, wherein the second digital image comprises a plurality of RGB pixels, and wherein each of the plurality of RGB pixels has an RGB color value; andgenerating a lookup table to associate each of a plurality of XYZ color values derived from the first digital image with one of a plurality of RGB color values derived from the second digital image.2. The method of claim 1 , wherein generating the lookup table comprises:registering the first digital image and the second digital image to a common grid; andmapping the plurality of XYZ pixels to the plurality of RGB pixels according to the common grid.3. The method of claim 1 , wherein generating the lookup table comprises:aligning the first digital image with the second digital image based on pattern ...

Colorimetry Device And Colorimetry Method

A colorimetry device and a colorimetry method according to the present invention relatively move the position of a color measuring unit with respect to a color chart to the position of each of a plurality of patches obtained based on an image of the color chart by a moving unit for a chart region selected by a user out of chart regions extracted based on the image of the color chart, and measure the color of each of the plurality of patches by the color measuring unit. 1. A colorimetry device , comprising:a display unit;a color measuring unit for measuring color;an imaging unit for obtaining an image;a moving unit for relatively moving the position of the color measuring unit with respect to a measurement object sheet;an image acquisition processing unit for obtaining an image of a color chart having a plurality of patches, which are regions of predetermined colors, by the imaging unit;a chart region extraction processing unit for extracting chart regions, where the plurality of patches are present, based on the image of the color chart obtained by the image acquisition processing unit;a patch position processing unit for obtaining the positions of the plurality of patches based on the image of the color chart obtained by the image acquisition processing unit for the chart regions extracted by the chart region extraction processing unit;a chart region selection processing unit for displaying the image of the color chart obtained by the image acquisition processing unit on the display unit and obtaining the chart region selected by a user from the displayed chart regions as a chart region of a colorimetric object; anda color measurement processing unit for relatively moving the position of the color measuring unit with respect to the color chart to the position of each of the plurality of patches obtained by the patch position processing unit in the chart region of the colorimetric object obtained by the chart region selection processing unit and measuring the color ...

Electro-Optical System and Method for Analyzing Images of a Scene to Identify the Presence of a Target Color

An electro-optical system and method are provided for analyzing images of a scene to identify the presence of a target color, such as human skin tones. The system includes a thermal detector for obtaining a thermal image of the scene within a thermal waveband. The system also includes at least one additional detector for obtaining at least one additional image of the scene at an additional waveband different from the thermal waveband. The system also includes a controller. The controller is configured to: process the thermal image to identify portions of the scene having a temperature exceeding a threshold value; process the additional image to identify portions of the scene having a target color; and output a positive response if a same portion of the scene is identified in the thermal image and the additional image. 1. A system for analyzing images of a scene to identify a target color , the system comprising:a thermal detector for obtaining a thermal image of the scene within a thermal waveband;at least one additional detector for obtaining at least one additional image of the scene at an additional waveband different from the thermal waveband; anda controller configured to:process the thermal image to identify portions of the scene having a temperature exceeding a threshold value;process the additional image to identify portions of the scene having the target color; andoutput a positive response if a same portion of the scene is identified in the thermal image and in the additional image.2. The system of claim 1 , wherein the additional detector is an infrared detector or a visible light detector.3. The system of claim 1 , wherein the thermal detector obtains thermal images of the scene in real time.4. The system of claim 1 , wherein the controller activates the additional detector to obtain the additional image when portions of the scene having a temperature exceeding a threshold value are identified by processing the thermal image.5. The system of claim 1 , ...

Display Device And Program

A display device includes a storage storing a plurality of rules including first and second rules, a designator that designates one rule of the plurality of rules, and a controller that causes a screen to transition from one screen to another screen in accordance with the one rule. The first rule includes a rule that causes a screen to transition from a first screen to a second screen in response to a user's first action, and a rule that causes a screen to transition from the first screen to a third screen in response to a users second action. The second rule includes a rule that causes a screen to transition from the first screen to the second screen in response to a user's third action, and a rule that causes a screen to transition from the second screen to the third screen in response to the user's third action. 1. A display device comprising:a display unit;a storage that stores a plurality of pieces of screen data and information indicative of a plurality of screen transition rules including a first screen transition rule and a second screen transition rule;a designation unit that designates, in response to a signal input in accordance with an action of a user, one screen transition rule of the plurality of screen transition rules; anda display controller that causes, in response to a signal input in accordance with an action of the user, causes a screen displayed in the display unit to transition from a screen based on one piece of screen data of the plurality of pieces of screen data to a screen based on another piece of screen data different from the one piece of screen data on the basis of the one screen transition rule designated by the designation unit, whereinthe plurality of pieces of screen data include first screen data, second screen data, and third screen data,the first screen transition rule includes (1a) a rule that causes, with a first screen based on the first screen data displayed in the display unit, a screen displayed in the display unit to ...

METHOD FOR MANUFACTURING LIGHTING DEVICE

Provided is a lighting device that emits light of a color that approximates the color of the surface of an object or the like. Disclosed is a method for manufacturing a lighting device, including the steps of: spectroscopically measuring a spectrum that constitutes a color of a measurement target; and adjusting a color of a light source such that an emission spectrum approximates the spectrum that constitutes the color of the measurement target. 1. A method for manufacturing a lighting device , comprising the steps of:spectroscopically measuring a spectrum that constitutes a color of a measurement target; andadjusting a color of a light source such that an emission spectrum approximates the spectrum that constitutes the color of the measurement target.2. The method for manufacturing a lighting device according to claim 1 ,wherein the measurement target is at least one selected from a plant, a star, the sky, and a water surface.3. The method for manufacturing a lighting device according to claim 1 ,wherein a spectrum indicating the color of the measurement target is a reflection spectrum for natural light.4. The method for manufacturing a lighting device according to claim 1 ,wherein the light source includes an LED element, and two or more fluorescent substances having fluorescent wavelength peaks separated from each other by 50 nm or more.5. The method for manufacturing a lighting device according to claim 4 ,wherein the LED element is an ultraviolet LED element or a near-ultraviolet LED element having an emission peak in an ultraviolet light region of 430 nm or less, and at least one of the fluorescent substances is a blue fluorescent substance or a green fluorescent substance that can be excited by ultraviolet light or near-ultraviolet light emitted by the ultraviolet LED element or the near-ultraviolet LED element, and that has a fluorescent wavelength peak in the range of 420 to 480 nm.6. The method for manufacturing a lighting device according to claim 4 , ...

PRINTER WITH SPECTROPHOMETRIC MEASUREMENT

Printing with a first print engine on a front side of a substrate, and a second print engine on the rear side of the substrate, wherein a first spectrophotometer sensor and a second spectrophotometer sensor are used for spectrophotometric measurements on the blank front and rear sides of the substrate, and producing correction data which represent a deviation of the spectrum representing output signals from the first and second sensors, and wherein a correction derived from the correction data compensates a deviation in the spectral reflectivity of at least one of the front side and the rear side of the substrate. Cross-calibrating the first and second sensors is by processing the spectrum representing output signals of the sensors from identical spectrophotometric measurements. 1. A printer with a first print engine to print on a front side of a substrate and a second print engine to print on the rear side of the substrate , comprisinga first spectrophotometer sensor and a second spectrophotometer sensor, wherein the sensors are for spectrophotometric measurement by receiving light reflected from the substrate and to produce output signals which represent a spectral reflectivity of the substrate,wherein the first sensor is for spectrophotometric measurement of the front side of the substrate and the second sensor is for spectrophotometric measurement of the rear side of the substrate, and wherein the spectrophotometric measurements are performed on the blank front and rear sides of the substrate, anda processing unit to receive the output signals of the first and second sensors,to produce correction data which represent a deviation between the output signals from the first and second sensors, andto apply a correction derived from the correction data on at least one of the first and second print engines, so that a deviation in the spectral reflectivity of at least one of the front side and the rear side of the substrate is compensated by the first and second print ...

METHOD FOR PROVIDING AN INDICATION AS TO THE THE AMOUNT OF MILK REMAINING IN A BREAST DURING LACTATION

A method of providing an indication as to the amount of milk remaining in a breast during lactation based on a determined fat content of milk that has been expressed from said breast is disclosed. The method of determining said fat content comprises measuring an optical characteristic of milk following expression and by comparing said measured optical characteristic with data representing a corresponding optical characteristic of a sample of milk having a known fat content to determine the fat content of said expressed milk which is indicative of the amount of milk remaining in the breast. 1. A method of providing an indication as to the amount of milk remaining in a breast during lactation based on a determined fat content of milk that has been expressed from said breast , wherein the method of determining said fat content comprises measuring an optical characteristic of milk during expression and by comparing said measured optical characteristic with data representing a corresponding optical characteristic of a sample of milk having a known fat content to determine the fat content of said expressed milk , and determining an indication of the amount of milk remaining in the breast from the determined fat content of said expressed milk.2. A method according to claim 1 , wherein the method includes the step of applying an algorithm to determine the fat content of expressed milk based on said comparison of the measured optical characteristic and said corresponding optical characteristic of a sample of milk having a known fat content to determine the fat content of said expressed milk.3. A method according to claim 1 , wherein the step of measuring an optical characteristic of the expressed milk comprises the step of illuminating a portion of milk using a light source and using an RGB sensor to detect the color of the expressed milk and subsequently comparing said measured color with the color of a sample of milk having a known fat content to determine the fat content ...

Image forming apparatus

An image forming apparatus includes an image forming unit configured to form a measurement image on a sheet, a measurement unit configured to emit light to the measurement image, and measure light reflected from the measurement image, a selection unit configured to select one of a first mode for feeding a sheet, forming a measurement image on the sheet with the image forming unit, and measuring the measurement image on the sheet with the measurement unit, and a second mode for feeding a chart on which a measurement image has already been formed, and measuring the measurement image on the chart with the measurement unit without performing image formation with the image forming unit, and a control unit configured to control the measurement unit to perform measurement of the measurement image according to the mode selected by the selection unit.

COOKING APPLIANCE AND METHOD FOR OPERATING A COOKING APPLIANCE

In a method for operating a cooking appliance, a measurement profile is recorded of a light reflected by a food during a heat treatment cycle. A time instant of a turning point is determined from the measurement profile, and an action is triggered on the basis of the determined time instant of this turning point. 115- (canceled)16. A method for operating a cooking appliance , said method comprising:recording a measurement profile of a light reflected by a food during a heat treatment cycle;determining a time instant of a turning point from the measurement profile; andtriggering an action on the basis of the determined time instant of this turning point.17. The method of claim 16 , wherein the measurement profile is recorded in a wavelength range.18. The method of claim 16 , wherein a number of measurement profiles are recorded in different wavelength ranges.19. The method of claim 16 , wherein the measurement profile is a profile of a brightness claim 16 , a color saturation or a color tone of the reflected light.20. The method of claim 16 , wherein the time instant of the turning point of the measurement profile is determined between an accelerating decrease and a subsequently slowing decrease in the measurement profile.21. The method of claim 20 , wherein the measurement profile is a brightness.22. The method of claim 16 , wherein the time instant of the turning point of the measurement profile is determined between an accelerating increase and a subsequently slowing increase in the measurement profile.23. The method of claim 22 , wherein the measurement profile is a color saturation or a color tone.24. The method of claim 16 , wherein the time instant of the turning point is calculated from a determination of an extreme value of a differential profile of a first order.25. The method of claim 24 , wherein the extreme value of the differential profile is a minimum.26. The method of claim 16 , wherein the time instant of the turning point is calculated from a ...

APPARATUS AND METHOD FOR MEASURING FAR-FIELD LUMINOUS INTENSITY AND COLOR CHARACTERISTICS OF LIGHT SOURCES

An apparatus is provided for measuring far-field luminous intensity and color characteristics of a light source that includes a lamp test location for receiving a lamp for testing and a mirror positioned in a fixed light receiving position relative to the lamp test location and positioned in a fixed light transmitting position for reflecting a light beam from the lamp at a predetermined angle relative to the light receiving position. A measurement screen is positioned in a location relative to the mirror to receive the parabolically-condensed light image reflected from the mirror at the predetermined angle and a light detector is positioned to capture a light image reflected from the measurement screen. The light detector is configured to convert the reflected light image on the measurement screen to a digital signal and output the digital signal. A computer is configured for receiving and processing the digital signal corresponding to the reflected light image and calibrated for measuring luminous intensity according to an algorithm programmed in the computer.

LED Solar Simulator and Method of Use

The present application discloses a method of using a LED-based solar simulator light source having at least one LED array formed by multiple LED groups of LED assemblies, at least one field flattening device, at least one diffractive element, and at least one optical element configured to condition the broad spectrum light source output signal and direct the light source output signal to a work surface.

System and Method For Color Matching

A system for analyzing and processing user input and providing a result based on a predetermined set of color identifiers, the system comprising a first user input, wherein the first user input comprises of one or more digital images, a second user input, wherein the second user input comprises of responses to queries, a white balancing method for removing color casts from the first user input to create a final corrected image of the first user input, a first database for storing a predetermined set of color identifiers, a second database for storing product profiles, and a processor for analyzing the final corrected image of the first user input and the second user input collectively, comparing the final corrected image of the first user input and the second user input collectively to the predetermined set of color identifiers, and providing a color output.