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 ...

СПОСОБ, СИСТЕМА И НОСИТЕЛЬ ИНФОРМАЦИИ, ИМЕЮЩИЙ СОХРАНЕННЫЕ НА НЕМ КОМАНДЫ, КОТОРЫЕ ВЫЗЫВАЮТ ВЫПОЛНЕНИЕ ПРОЦЕССОРОМ СПОСОБА ПОЛУЧЕНИЯ ИНФОРМАЦИИ ИЗОБРАЖЕНИЯ ОРГАНИЗМА, СОДЕРЖАЩЕЙ НАБОР ОПТИЧЕСКИХ ДАННЫХ

Изобретение относится к способу оценки времени уборки урожая и системе обработки информации для его осуществления. Способ содержит этапы, на которых получают информацию изображения организма, содержащую набор оптических данных, вычисляют индекс роста на основании набора оптических данных и вычисляют ожидаемое время уборки урожая на основании индекса роста. Указанная информация изображения содержит набор данных изображения по меньшей мере от двух устройств фиксации изображений, которые фиксируют набор данных изображения по меньшей мере из двух положений. Также способ содержит этапы, на которых вычисляют данные изображения параллакса на основании по меньшей мере двух элементов данных изображения из набора данных изображения, полученных от указанных по меньшей мере двух устройств фиксации изображений, и вычисляют индекс роста на основании данных изображения параллакса, при этом указанные по меньшей мере два элемента данных изображения фиксируют с двух углов и/или с указанных по меньшей мере ...

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 ...

Device for measuring the colour of objects

The subject matter of the invention is a colour meter. The light emanating from an object (1) whose colour is to be established is fed to a photodetector arrangement. Arranged in the beam path of the photodetector arrangement are at least two dichroic mirrors (18, 21), of which each reflects or transmits a colour component with respect to a photoelectric receiver (20, 22). The aim of this is to make it possible for the colours to be measured without moving filters. ...

VORRICHTUNG ZUR KOLORIMETRISCHEN ANALYSE VON GEGENSTÄNDEN WIE FRÜCHTEN ODER GEMÜSE

Verfahren und Vorrichtung zum Herstellen einer Druckvorlage von einer Volltonfarbe aus einem mehrfarbigen Original

COLOUR GRADING OF VARIOUS MATERIALS

... 1409220 Photo-electric colour grading MAGNUSON ENGS Inc 17 Dec 1973 [27 Dec 1972] 58323/73 Heading G1A An apparatus for monitoring a moving material such as cereal or potato crisps on a conveyer measures the reflectivity of the material a two well spaced light hues and takes the ratio of the measurements. The basic apparatus in Fig. 1 comprises a stand 14 on wheels 21 and having a rack and pinion arrangement 15 allowing the optical measuring apparatus in head 10 to be placed over the material 11d moving on a conveyor belt 11. An air duct 24c delivers air from the stand to the head where it flows past heaters to maintain the head temperature stable. The head is shown in Fig. 2, with the heater visible at 24f. The optical system comprises circular discharge tubes, lens 26, filter 26a, dichroic filtering beam-splitters 27, filters 28, 29 and photo-diodes 32, 35. The filters operate such that detector 32 receives green light and detector 35 receives red light; specific wavelengths are referred ...

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 ...

COLOUR SIGNAL GENERATING APPARATUS

... 1369864 Photo-electric colour analysis EASTMAN KODAK CO 30 Sept 1971 [30 Sept 1970 1 July 1971] 45571/71 Heading G1A An image of an object which may include a film or an image of a spot on the film or object is thrown into a plane 20 Fig. 1 and the image is analysed for its constituent colours by a beam splitting arrangement 18 and three filtered photosensors 40, 42, 44 responsive respectively to different colours, the beam splitter comprising arcuate reflective surfaces 46, 48, 50 which divides the incident light and directs it along a plurality of distinct paths. In the arrangement in which light from a spot is analysed a succession of films (transparencies) are traversed by a flying spot scanner and the spot is unsharply imaged in the plane of the beam splitter. The reflective areas may be designed to compensate for the respective colour sensitivities of the sensors and the reflecting portions may be half silvered so that light is also transmitted.

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.

Color Measurement engine with parallel detectors

Photoelectric measuring devices

VERFAHREN UND VORRICHTUNG ZUR BESTIMMUNG VON ZAHNFARBEN

PROCEDURE AND SWITCHING CONFIGURATION FOR RECOGNIZING COLORS.

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.

MECHANISM FOR THE DETERMINATION OF THE FARBWERTS OF A LIGHT-CURRENT

Imaging apparatus with a plurality of shutter elements

METHOD OF DETERMINING TRISTIMULUS VALUES FOR RGB LED ILLUMINANTS

Spectrometer device

A spectrometer can include a plurality of semiconductor nanocrystals. Wavelength discrimination in the spectrometer can be achieved by differing light absorption and emission characteristics of different populations of semiconductor nanocrystals (e.g., populations of different materials, sizes or both). The spectrometer therefore can operate without the need for a grating, prism, or a similar optical component. A personal UV exposure tracking device can be portable, rugged, and inexpensive, and include a semiconductor nanocrystal spectrometer for recording a user's exposure to UV radiation. Other applications include a personal device (e.g. a smartphone) or a medical device where a semiconductor nanocrystal spectrometer is integrated.

Apparatus and method for measuring optical characteristics of teeth

COLOUR MEASURING DEVICES

DEVICE AND METHOD FOR DETERMINING DISPLACEMENT

An apparatus for determining the displacement of an object comprises a light source which propagates a polychromatic light signal along a path to a detector. The detector is capable of detecting the intensity of incident radiation at a plurality of different wavelengths. A radiation modulator is mechanically coupled to the object for movement therewith, displacement of the object being arranged to cause displacement of the radiation modulator so as to vary the distributed spectral content of the light reaching the detector.

OPTICAL SYSTEM TO OPTIMIZE FIELD OF VIEW UNIFORMITY IN A MULTI-COLOR PRODUCE SORTER

An apparatus for grading articles of agricultural produce according to frequency components of radiant energy received therefrom. An objective lens focuses, at an image plane, radiant energy received from an object to be graded. A field stop is provided at or near the image plane for defining a field of view that includes an article to be graded. A fiber optic bundle having first and second ends, is also provided. A fiel? lens is provided adjacent the stop for forming an image onto one end of the fiber optic bundle. A diffuser is positioned at the second end of the bundle for diffusing radiant energy emerging from the other end of the fiber optic bundle. A plurality of photodetectors are positioned to receive radiant energy emerging from the diffuser. A plurality of color filters are disposed in front of the photodetector for passing to each of the photodetect ?s a respective frequency component of the radiant energy.

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 ...

APPARATUS AND METHOD FOR MEASURING AND CORRELATING CHARACTERISTICS OF FRUIT WITH VISIBLE/NEAR INFRA-RED SPECTRUM

This disclosure is of 1) the utilization of the spectrum from 250 nm to 1150 nm for measurement or prediction of one or more parameters, e.g., brix, firmness, acidity, density, pH, color and external and internal defects and disorders including, for example, surface and subsurface bruises, scarring, sun scald, punctures, in N-H, C-H and O-H samples including fruit; 2) an apparatus and method of detecting emitted light from samples exposed to the above spectrum in at least one spectrum range and, in the preferred embodiment, in at least two spectrum ranges of 250 to 499 nm and 500 nm to 1150 nm; 3) the use of the chlorophyl band, peaking at 680 nm, in combination with the spectrum from 700 nm and above to predict one or more of the above parameters; 4) the use of the visible pigment region, including xanthophyll, from approximately 250 nm to 499 nm and anthocyanin from approximately 500 to 550 nm, in combination with the chlorophyl band and the spectrum from 700 nm and above to predict the ...

METHOD AND SYSTEM FOR QUANTIFYING BIOMARKER OF A TISSUE

The present disclosure relates to a method and a system for quantifying a biomarker of a biological tissue. Two spectral sub-intervals are determined from a plurality of images of the tissue acquired at discrete wavelengths within a main wavelength interval using an imaging sensor in a manner such that the combination of the image data in the at least two spectral sub-intervals are correlated with a clinical variable of interest. The tissue is illuminated using one or more light sources with wavelengths within the at least two spectral sub-intervals. A measurement is of the light reflected by the tissue is acquired using an imaging sensor; and a measure of the biomarker of the tissue is calculated using the acquired measurement. The main wavelength interval is broader than each of the at least two spectral sub-intervals and at least one spectral confounder causing a spectral variability of the acquired image is present in the tissue.

SYSTEMS AND METHODS FOR COLOR DETECTION IN HIGH-THROUGHPUT NUCLEIC ACID SEQUENCING SYSTEMS

A sequencing instrument optical system having a combined light source with multiple collinear excitation beams having different respective excitation wavelengths, a sequencing surface having DNA templates and nucleobase labels configured to emit a respective emission light at a different respective emission wavelength upon excitation by one or more of the excitation beams, a color camera configured to detect the emission light of each of the nucleobase labels, a first optical pathway configured to direct the collinear excitation beams from the combined light source to the sequencing surface, and a second optical pathway configured to direct the emission light from the sequencing surface to the color camera.

PORTABLE SCANNING COLORIMETER

A portable colorimeter housing (100) has an upper portion (103) which is mounted on a lower portion (101) in a cantilever fashion and is adapted to receive sheets larger than the device for purposes of obtaining tri-stimulus color measurements. An adjustable paper guide (119) determines the distance that a sheet is inserted between upper (163) and lower (161) plates. A sheet to be measured inserted in the opening (109) will operate a micro switch (139) which activates a motor operative to advance the sheet between a motor driven drive wheel (135) in the lower plate (161) and an idler roller in the upper plate (171). Transmittance or reflectance measurements are taken by means of photodetector cells (242) including colorimetric filters. A user programmable processor performs pattern recognition and control functions.

Procédé pour l'analyse d'un dessin ou motif polychrome suivant au moins une couleur, et appareil pour la mise en oeuvre du procédé

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

Colorimètre

SWITCHING CONFIGURATION FOR RECOGNIZING COLORS.

PROCEDURE AND SWITCHING CONFIGURATION FOR RECOGNIZING COLORS.

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.

Based on filter unit of a radiation measuring method and device

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.

COLOR ANALYZERS

Imaging optics for the spectral analysis of a scene.

PASSIVE OPTICAL COMPONENT FOR SENSING MODULE AND METHOD OF MANUFACTURE

Selon un aspect, la présente description concerne un composant optique passif pour module de détection optique adapté à la détection dans un domaine spectral de détection donné, comprenant au moins deux composants optiques élémentaires (111, 112) adaptés chacun à réaliser au moins une fonction optique. Chaque composant optique élémentaire (111) comprend un substrat longitudinal (111a) en matériau transparent dans le domaine spectral de détection, ledit substrat comprenant deux faces optiques (111b, 111c) au travers desquelles la lumière est apte à se propager et deux faces latérales (111 d, 111e). Les composants optiques élémentaires sont plaqués deux à deux face latérale contre face latérale et fixés par brasage tendre, de telle sorte à former le composant optique passif (100).

Apparatus allowing the measurement of the light and particularly of the color

SPECTROMETER DEVICES

IMAGE SENSOR HAVING IMPROVED LIGHT UTILIZATION EFFICIENCY AND METHOD FOR MANUFACTURING SAME

An image sensor comprises: a color filter array layer which includes a plurality of color filters transmitting light of different colors; and reflective partitioning walls which define the color filters and have a lower refractive index than that of the color filters; a color separation device which separates incident light into a plurality of colors, such that the plurality colors are incident on the plurality of color filters, respectively; and a sensor substrate on which a plurality of light detection devices for respectively sensing light transmitted through the plurality of color filters are arranged in an array shape. COPYRIGHT KIPO 2016 ...

APPARATUS AND A METHOD FOR CONVERTING AN OPTICAL SIGNAL INTO A DIGITAL SIGNAL, ESPECIALLY FOR SUITABLY CONTROLLING AN ANALOG SIGNAL BETWEEN A PHOTO DIODE AND AN ADC THROUGH LIGHT-PWM CONVERSION

PURPOSE: An apparatus and method for converting an optical signal into a digital signal are provided to save a space and a cost by providing a stable reference voltage and a conversion clock to an ADC(Analog-to-Digital Converter). CONSTITUTION: A photo diode(100) converts an optical signal into a current. A trans-impedance amplifier(110) converts the photo diode current into a voltage. A saw tooth wave generator(120) generates a saw tooth wave. A comparator(130) generates a PWM(Pulse Width Modulation) output by comparing the saw tooth wave with the voltage output of the trans-impedance amplifier(110). © KIPO 2006 ...

분광기를 이용하여 특수 설계된 패턴 폐루프 보정에 의한 고 정확도의 영상 색도계

... 본 명세서는 보다 정확한 출력을 포함할 수 있는 광대역 색도계를 제공하는 방법에 관한 다양한 실시예들을 설명한다. 일실시예에서, 분광계 또는 분광기 등의 협대역 장비는 광대역 색도계의 보정에 사용될 수 있고, 따라서 더 정확한 출력이 제공될 수 있다. 일실시예에서, 광대역 색도계 및 협대역 분광기로 구성된 광 테스트 장비는 보다 정확하게 보정된 광대역 색도계를 제공하는데 사용될 수 있다. 예로서, 광대역 색도계 및 협대역 분광기로 구성된 하이브리드 시스템인 스펙트럼 카메라는 광대역 색도계 및 협대역 분광기에 의한 동시 테스트에 사용될 수 있다. 통시 테스트에 의해 광대역 색도계의 정확한 보정이 달성될 수 있다. 본 명세서는 협대역 다중 채널 분광계를 갖는 광대역 세 채널 색도계를 특징화하는 수학적 모델을 더 기술한다.

IMAGE SENSOR CAPABLE OF MEASURING FOR ILLUMINANCE, PROXIMITY, AND COLOR TEMPERATURE OF AN OBJECT

PURPOSE: An image sensor capable of measuring for illuminance, proximity, and color temperature of an object by installing a second sensing unit around a first sensing unit and separately operating the second sensing unit from the first one. CONSTITUTION: A light source(110) project infrared ray having a certain wavelength on an object. A light source control part(120) controls power supplied to the light source. A first sensing unit(160) includes an image pixel getting the image of the object which is projected through an infrared ray filter. An illumination detector receives external light passed through the infrared ray filter and measures the illuminance of the object. COPYRIGHT KIPO 2011 ...

MULTISPECTRAL SCANNER WITH ENLARGED RANGE, IN PARTICULAR A SINGLE-PASS FLAT SCANNER

Ce scanner comprend un capteur linéaire photosensible intégré (20) com­prenant N lignes parallèles de photosites, avec N ≥ 4, de préférence N ≥ 6, et pour chaque ligne de photosites un filtre optique passe-bande associé. Pour chaque pas de balayage et pour chaque pixel de la ligne analysée, il délivre N valeurs de mesure partielles quantifiées correspon­dantes, représentatives chacune de la réflectance spectrale du document recueillie au travers de l'un des N filtres respectifs. Des moyens de re­construction spectrale opèrent selon une méthode d'extrapolation avec apprentissage à partir d'échantillons colorés de référence, avec une mé­moire (42) stockant une base de connaissances formée à partir des va­leurs de réflectance spectrale connues desdits échantillons de référence, et un réseau de neurones (40) recevant en entrée les N valeurs partielles quantifiées et délivrant en sortie au moins une valeur quantifiée reconsti­tuée, représentative de la réflectance spectrale du pixel correspondant ...

SUPERVISION OF AN ILLUMINATION DEVICE

The invention relates to an illumination device (1) with a number of light emitters, for example LEDs (L1, L2, L3, L4) of individual emission spectra. Sensor units (D1, D2, D3, D4) can produce a vector of measurement signals (S1, S2, S3, S4) that represent the light output of a single active light emitter. Based on a linear relation obtained during a calibration procedure, a characteristic value of the light output of that light emitter (L1, L2, L3, L4) is then calculated from the measurement vector, wherein said characteristic value is based on the coefficients of a decomposition of the individual emission spectrum into basis functions.

MINIATURIZED SYSTEM AND METHOD FOR MEASURING OPTICAL CHARACTERISTICS

A miniaturized spectrometer/spectrophotometer system and methods are disclosed. A probe tip (10) including one or more light sources and a plurality of light receivers (12) is provided. A first spectrometer system (6A) receives light from a first set of the plurality of light receivers. A second spectrometer system (6B) receives light from a second set of the plurality of light receivers. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems.

SENSOR FOR DUAL WAVELENGTH BANDS

A dual wavelength focal plane has a first array of infrared sensing pixel elements and a second array of visible light pixel elements adapted to be selective .colors encountered while driving an automobile. The second array is selective to the colors red, blue and green, so being selective to traffic control signals, including brake lights of other automobiles. The arrays are vertically stacked on a monolithic silicon substrate. The arrays are electrically coupled to a processor and display ,to integrate the infrared and color pixel elements into a view for a driver of the automobile.

Colorimeter apparatus for color printer ink

The present invention provides a colorimeter apparatus for a color printer ink capable of rapidly measuring the colors of a color patch portion in an online mode. The light of a xenon light source 21 is directed via an optical fiber 22 and a condenser lens 23 to a zone through which a color patch 53 passes. Reflected light is condensed by a telecentriclens system 14 and focused on the light-receiving surface of a Linear Variable Filter 11. The light is spectrally divided by the Linear Variable Filter 11 and guided toward a linear sensor 13 via a fiber optic plate (FOP) or collimator 12. The output of the linear sensor 13 is converted to an analog signal by an analog signal generator 14 and sent to a signal processor 3. In the signal processor 3, a spectral reflectance factor is calculated based on the resulting spectral reflectivity, and a color or color difference is calculated based on this value and a prestored formula for color systems or color differences.

COLORIMETER FOR FISH LURE SELECTOR

Device and method for determining displacement

Integrated circuit using logarithmic amplifier

An integrated circuit includes an operational amplifier having inverting and noninverting input terminals, a first logarithmic amplifier having inverting and noninverting input terminals, and a second logarithmic amplifier having inverting and noninverting input terminals. The output of the first logarithmic amplifier is connected to the noninverting input terminal of the second logarithmic amplifier, and the output of the second logarithmic amplifier is connected to the inverting input terminal of the operational amplifier.

Apparatus and method for measuring optical characteristics of an object

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, fluorescene 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.

MOVABLE PIXELATED FILTER ARRAY

An optical imaging system and method including a movable pixelated filter array, a shutter mechanism to which the pixelated filter array is attached, and a controller configured to implement a data reduction algorithm. The shutter mechanism is configured to move the pixelated filter array into and out of the optical path, and the data reduction algorithm allows the controller to account for axial and/or lateral misalignment of the filter array relative to the imaging detector array or its conjugate. In certain examples, the controller is further configured to use the data reduction algorithms also to perform wavefront sensing, for example to estimate wavefront error.

Sensor device

A sensor device may determine a first optical sensor value associated with a first displacement and a second optical sensor value associated with a second displacement, wherein the first displacement is between an emitter associated with the first optical sensor value and a sensing location used to determine the first optical sensor value, wherein the second displacement is between an emitter associated with the second optical sensor value and a sensing location used to determine the second optical sensor value, and wherein the first displacement is different from the second displacement. The sensor device may determine one or more measurements using the first optical sensor value and the second optical sensor value, wherein the one or more measurements relate to a first penetration depth associated with the first optical sensor value, and a second penetration depth associated with the second optical sensor value.

Method for remotely controlling a spectral measurement device utilizing predicted service life or a remotely provided software upgrade including color reference or shade guide data

Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth 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/tooth being measured. Under processor control, the optical characteristics measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence, gloss 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. A method of producing dental prostheses based on measured ...

Apparatus and method for measuring optical characteristics of teeth

Color measuring systems and methods such as for determining the color or other characteristics of teeth 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/tooth 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/tooth 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. A method of producing dental prostheses based on measured data also is disclosed. Measured data ...

METHOD, SYSTEM, AND MEDIUM HAVING STORED THEREON INSTRUCTIONS THAT CAUSE A PROCESSOR TO EXECUTE A METHOD FOR OBTAINING IMAGE INFORMATION OF AN ORGANISM COMPRISING A SET OF OPTICAL DATA

The present disclosure relates to methods and systems for obtaining image information of an organism including a set of optical data; calculating a growth index based on the set of optical data; and calculating an anticipated harvest time based on the growth index, where the image information includes at least one of: (a) visible image data obtained from an image sensor and non-visible image data obtained from the image sensor, and (b) a set of image data from at least two image capture devices, where the at least two image capture devices capture the set of image data from at least two positions.

INTRAORAL OCT WITH COLOR TEXTURE

An apparatus for acquiring intraoral images of a subject has an OCT imaging apparatus having an OCT light source, a scanner that conveys OCT light toward the subject and returned from the subject, and an interferometer having a reference arm and a sample arm. A reflectance imaging apparatus has a visible light source directed toward the subject and an image sensor that forms a reflectance image from returned light. Processing and control logic are configured to process and combine the returned reflectance image to the OCT measured data. A display shows the combined reflectance image and OCT measured data.

METHOD AND APPARATUS FOR DETERMINING INTENSITIES AND PEAK WAVELENGTHS OF LIGHT

The present invention provides a method and apparatus for determining intensities and peak wavelengths of light. The apparatus comprises one or more pairs of sensing units for sensing the light, a first sensing unit of a pair configured to sense a first intensity of the light in a first predetermined wavelength range with a first predetermined spectral responsivity and a second sensing unit of a pair configured to sense a second intensity of the light in the first predetermined wavelength range with a second predetermined spectral responsivity. The apparatus further comprises a processing system operatively connected to the one or more pairs of sensing units; the processing system configured to determine the intensity and peak wavelength for each of the one or more predetermined wavelength ranges of the light according to one or more predetermined functional relationships between each of the first intensity and second integral.

Signal processing device for biological observation apparatus

Tissue information of a desired deep portion of a biological tissue based on a spectral image obtained from signal processing is adjusted to image information in a color tone suitable for observation. Outputs of a matrix computing section 436 are respectively connected to integrating sections 438a to 438c, and after integrating computation is performed for them, color conversion computation is performed for respective spectral image signals F1 to F3 in a color adjusting section 440, spectral color channel image signals Rch, Gch and Bch are created from the spectral image signals F1 to F3, and images of the spectral color channel images Rch, Gch and Bch are sent to a display monitor 106 via a switching section 439.

Sensor-synchronized spectrally-structured-light imaging

A smartphone is adapted for use as an imaging spectrometer, by synchronized pulsing of different LED light sources as different image frames are captured by the phone's CMOS image sensor. A particular implementation employs the CIE color matching functions, and/or their orthogonally transformed functions, to enable direct chromaticity capture. A great variety of other features and arrangements are also detailed.

Color image forming apparatus and color measurement controlling method therefor

Based on a controlling method of colour measurement, a color image forming apparatus, when a white LED is made to emit light to thereby detect reflected light from a color image, changes a color measuring condition in adaptation to a reflectance predicted from the forming condition of the color image to be detected and detects the amount of reflected light by photodiodes (R,G,B), and adjusts the image forming condition from the detected amount of reflected light of each color image. Thereby, irrespective of the reflectance of each color image, the color measurement of each color image is effected with good accuracy, and the hue and density of the color image to be detected are accurately detected to thereby form a color image excellent in color reproducibility.

Apparatus and methods for high speed RGB color discrimination

Device and method for inspecting a polychromatic region, such as a polychromatic pattern, on a moving workpiece. The method includes device includes a solid-state light source, preferably a light emitting diode, adapted to emit light in a range of wavelengths for illuminating the polychromatic region. Photodetectors are positioned relative to the workpiece to intercept light from the light source reflected by the polychromatic region- Each of the photodetectors is adapted to detect reflected light within a corresponding one of a plurality of bands defined within the range of wavelengths. The method includes detecting intensities of the light reflected from the polychromatic region within different wavelength bands in the range of wavelengths and evaluating a ratio of the intensities for comparison with a standard ratio to ascertain a variation in the evaluated ratio.

SYSTEM FOR MULTISPECTRAL IMAGING

Measuring head for an apparatus measuring colour by diffuse reflection

The light emerging from a lamp (1) infringes on the measuring object at 90°. The light reflected from the latter is collected at 45° by means of an annular mirror optic system (3-6) and is split up by means of two colour-selective interference mirrors (7, 8) into the three colours blue, red and green. The three colours then pass via further filters (9-11) and in each case one aplanatic lens (12) onto in each case one silicon-planar photodiode (13). In order to blank out light reflected directly from the surface of the measured object, two crossed linear polarisers (141a, 142a) are inserted into the beam path. In order to avoid difficulties with the interference mirrors (7, 8) which are sensitive to the polarisation direction of the light impinging on them, the linear polariser (142a) located in the imaging beam path is vapour-deposited on its rear with an /4 layer (b) which brings about a circular polarisation of the light supplied to the mirrors (7, 8). ...

POLARIZATION IMAGING SYSTEM AND POLARIZATION IMAGING METHOD

УСТРОЙСТВО ДЛЯ НАБЛЮДЕНИЯ БИОЛОГИЧЕСКИХ ОБЪЕКТОВ

... 1. Устройство для наблюдения биологических объектов, содержащее: ! секцию формирования цветового сигнала изображения, которая выполняет обработку сигналов либо над первым снятым сигналом изображения, для которого объект, подлежащий исследованию, подсвечиваемый белым подсвечивающим светом, снимают первым устройством съемки изображения, снабженным цветным светофильтром, обладающим характеристикой пропускания множества длин волн в широком диапазоне, либо над вторым снятым сигналом изображения, для которого объект, подлежащий исследованию, подсвечиваемый множеством взаимно отличающихся подсвечивающих световых потоков с чередованием кадров в широком диапазоне длин волн, который охватывает видимый диапазон спектра, снимают вторым устройством съемки изображения, и формирует цветовой сигнал изображения для отображения в виде цветного изображения на устройстве отображения; ! секцию формирования спектрального сигнала изображения, которая формирует, исходя из первого снятого сигнала изображения или ...

КОНТРОЛЬ ЗА УСТРОЙСТВОМ ОСВЕЩЕНИЯ

... 1. Устройство (1) освещения, содержащее ! a) по меньшей мере один излучатель света (L1, L2, L3, L4, Ln), ! b) по меньшей мере два датчика (D1, D2, D3, D4, Dk) с различной спектральной чувствительностью для генерации сигналов измерения (Si, Sik), которые соответствуют отдельному световому выходу упомянутого излучателя света, ! c) блок (15) оценки для оценивания исходя из упомянутых сигналов (Si, Sik) датчиков по меньшей мере одного характеристического значения (X, Y, Z) отдельного светового выхода излучателя света, причем упомянутое характеристическое значение основывается на коэффициентах (αi, αik) разложения спектра (p1, p2,... pn, pj) упомянутого по меньшей мере одного излучателя света в линейную комбинацию заданного набора базисных функций (W1, W2, W3, W4), при этом упомянутые коэффициенты (αi, αik) не идентичны сигналам измерения (Si, Sik). ! 2. Устройство (1) освещения по п.1, которое содержит множество таких излучателей света (L1, L2, L3, L4, Ln), которые могут быть измерены отдельно ...

Verfahren und Vorrichtung zum Überwachen einer Farbe in einer Druckpresse

VERFAHREN ZUR FARBERKENNUNG

Optical arrangement for detecting the colour of moving bodies

Published without abstract.

Verfahren und Anordnung zur Korrektur fertigungsprozessbedingter Exemplarstreuungen von mit Spektralfiltern versehenen optischen Sensoren (Ultra MTCS)

Die Erfindung betrifft ein Verfahren und Anordnungen zur Korrektur fertigungsprozessbedingter Exemplarstreuungen von mit Spektralfiltern versehenen optischen Sensoren. Die Aufgabe der Korrektur fertigungsprozessbedingter Exemplarstreuungen von mit Spektralfiltern versehenen optischen Sensoren wird erfindungsgemäß gelöst, indem Sensoren mit wenigstens einem Spektralfilter, der eine gauß-ähnliche Filterfunktion aufweist, mindestens zwei Ersatzkanäle (6, 7) mit spektral gegensätzlich von der Zentralwellenlänge (11) der spektralen Zielfunktion (1) abweichenden Ersatzfunktionen (21, 31) aufweist, wobei die Ersatzkanäle (6, 7) jeweils ein Spektralfilter (61, 71, 62) zur Realisierung einer der gegensätzlich abweichenden Ersatzfunktionen (2, 3) mit einer maximal tolerierter Exemplarstreuung kleiner als ±a, ±b der Ersatzfunktionen von der spektralen Zielfunktion (1) ist, aufweisen, und die mit den gegensätzlich abweichenden Ersatzfunktionen (2, 3) gefilterten Signale der Ersatzkanäle (6, 7) Mitteln ...

Colorimeter

Colorimeter in which a reference colour surface is arranged on the inside of a hinged and/or removable housing part that covers the light receptor and (the) illuminating opening.

A sensor for range finding and ambient light measurement including a SPAD array

A sensor for range finding and ambient light measurement is disclosed. The sensor 100 includes an array of pixels 106 capable of sensing illumination in a plurality of wavelengths and generating a response thereto for each wavelength. The sensor includes an ambient light sensing system which includes a module for adjusting the response from the ambient light sensor, such that the response for each wavelength is independent of the wavelength of the illumination. The array of pixels 106 may include an array of single photon avalanche diodes (SPAD). The sensor may include a light emitting diode (LED) 104 which emits light in the infra-red range for the range-finding function. The SPAD array 106 may be adapted to detect both infra-red and optical illumination. The LED and SPAD array may have filters 108, 110. The sensor may be included in a device such as a phone, computer, camera or mouse.

Fibre-optic colour-balance monitor

Monitoring the colour balance of a product (e.g. in a colour offset printing machine) that can consist of a complex two-dimensional colour pattern involves a plurality of sensors positioned across the product and each comprising at least one illuminating optical fibre and at least two pick-up optical fibres 16. Filters 36 associated with each of the pick-up fibres 16 separate the reflected light into different colour components. Photodetectors 38 convert the light intensity from each pick-up fibre 16 into analogue electrical signals fed to a microprocessor-based signal processing module for conversion to digital form and subsequent analysis for monitoring colour balance. If there is a change in the colour balance, a visual and/or acoustic alarm may be automatically activated. Measurements are coordinated to the rotary position of the printing roll. ...

COLOR ANALYZERS

... 1, 247, 737. Photo-electric colour analysers. MINOLTA CAMERA K.K. Sept.30, 1968 (Oct.2, 1967; Oct. 11, 1967; Jan.17, 1968; June 26, 1968; July 29, 1968; Aug. 14, 1968; Aug.23, 1968], No.46281/68. Heading G1A. A colour analyzer comprises a plurality of detecting means sensitive generally to corresponding primary colours, but overlapping into adjacent primary colours and an electric matrix circuit solving the simultaneous linear equations necessary to determine the quantities of each primary colour from the detector signals. The primary colours may be C. I. E. chromaticity coefficients. In one embodiment, three photovoltaic or photo-conductive cells (silicon or CdS) are used each with a red, green or blue filter and in another embodiment a single detector is located behind a rotatable red, green and blue filter. Interchangeable patchboard resistor matrices may be provided to work with sources having different primary colours e. g. television tubes with different colour phosphors. Alternatively ...

Colour measuring device

Improved ambient light sensing system and method

Colorimeter

... 1,063,023. Photo-electric colorimeters. EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENTYTARSASAG. April 20, 1964, No. 16290/64. Heading G1A. A colorimeter for the direct reading of the chromaticity co-ordinates, or deviations from predetermined co-ordinates, has at least three colour filters and one or more photo-electric detectors and utilizes separate arrangements of variable resistances for reading each chromaticity co-ordinate. The colorimeter may be used in checking the chromaticities of fluorescent lamps and includes three photo-cells X, Y, Z e.g. selenium cells each arranged to have a specific spectral sensitivity by use of a corresponding colour filter, which may be coloured glass or an interference filter wedge. The photo-cells can be switched individually, or all three together, into the colorimeter circuit by means of a fourway switch 11. In position I, for example, cell X is connected to the slide contacts of its particular arrangement of variable resistors 13, 14 while in position ...

LIGHTING INSTALLATION

MULTIPLEXENDES TURNING SPECTROMETER

AUTOMATIC DENSITOMETER FOR TESTSTREIFEN.

Biometric instrument

Biometric instrument

Color measurement instrument with asymmetric tapered sample area optical enclosure

SYSTEM AND METHOD OF LIGHT SPOT POSITION AND COLOR DETECTION

A position and colour detection sensor (for detecting a position of a light spot in a light distribution that can include stray light components, e.g. from other lasers, ambient lighting etc.) includes two discrete response position sensitive detectors (DRPSDs). The first DRPSD is used to calculate a raw estimate of the spot position and the second DRPSD is used to calculate the actual spot position based on information from the first DRPSD. Colour is supported by further dividing each pixel of the first DRPSD into elementary photocells, each one covered with an appropriate optical filter. The use of two DRPSDs differing in pixel geometries makes them suitable for integration on the same chip using the same process. This reduces production and alignment costs. Further, analogue microelectronic processes can be used for colour filter deposition and simple optics can be used for beam splitting and shaping.

MULTI-SPECTRAL TWO-DIMENSIONAL IMAGING SPECTROMETER

A multi-spectral two-dimensional imaging spectrometer (10) includes a combination of achromatic, well-corrected lenses (14) for imaging a twodimensional scene on an internal field stop (20). The light emanating from this intermediate image is collimated with another well-corrected lens (24). A spectral separation subassembly (22) that divides the incident light into multiple, identical, and independent arms is placed in the collimated space following the collimating lens (24). The light in each arm is spectrally filtered based on the properties of an interference filter (30) in each arm. An imaging subassembly (32) composed of a well-corrected lens (34) forms contiguous images onto a single two-dimensional detector array (36). The images are identical copies of the original object with each copy having a different spectral component and can be viewed on a standard monitor or alternatively on a computer employing an analog-to-digital conversion device.

SPECTROMETER DEVICE

DEVICE HAS SPECTRAL ANALYSIS FOR

SYSTEM FOR ANALYZING MULTICOLOURED SCENES

Dental colorimetry device has a measurement head connected to a light source and receiving and analysis electronics via an optical fiber that has an inner transmission fiber surrounded by an outer receiving fiber

L'invention concerne un appareil de mesure de colorimétrie dentaire comportant : - une source lumineuse blanche, - des moyens permettant de projeter le flux lumineux émis par la source sur une dent à mesurer, - des moyens de collecte du flux diffusé par ladite dent, - des moyens de sélection spectrale du flux diffusé, - des moyens de mesure des flux lumineux spectralement sélectionnés, - des moyens de traitement du résultat de ces mesures permettant le classement de la dent mesurée par rapport à un nuancier. L'appareil comporte un ensemble d'émission et de réception et une tête de mesure venant au contact de la dent à mesurer, la tête de mesure étant reliée à l'ensemble d'émission-réception par un faisceau de fibres optiques. Le faisceau de fibres optiques comporte une fibre unique de collecte au moins partiellement de grand diamètre entourée de fibres d'émission de petit diamètre.

Device and method for the space-colorimetric measurement of a three-dimensional object

The disclosure relates to a device and a method for the space-colorimetric measurement of a three-dimensional object, in order to digitally model the low-relief and the colorimetric coordinates of this object according to multiple analysis points. In order to do so, the measuring device of the disclosure combines a lighting means with at least four optical detection means, including at least two twin detection means sensitive to substantially identical light wavelength ranges, in order to determine by stereoscopic effect the low-relief of the object analysed. The disclosure thus proposes a device for the space-colorimetric measurement of a three-dimensional object, that comprises a detection head including a lighting means for the object and at least four detection means for detecting the light reflected by the object, wherein said device further includes a unit for processing the information received by the detection means. At least two twin detection means are sensitive to substantially identical light wavelength ranges.

Optical filter, optical filter module, spectrometric measurement apparatus, and optical apparatus

An optical filter includes a first variable wavelength bandpass filter that extracts light of a first wavelength band and has first and second spectral bands and a second variable wavelength bandpass filter that extracts light of a second wavelength band adjacent to the first wavelength band and has third and fourth spectral bands. Part of the period during which the light of the first spectral band is extracted overlaps with the period during which the light of the third spectral band is extracted, and part of the period during which the light of the second spectral band is extracted overlaps with the period during which the light of the fourth spectral band is extracted.

Systems and methods for multispectral imaging

A system ( 10 ) for multispectral imaging includes a first optical filter ( 24, 20 ) having at least two passbands disposed in different spatial positions on the first optical filter, a second optical filter ( 20, 24 ) having another at least two passbands, and processor ( 32 ) adapted to identify an intensity of light in the at least two passband of the second optical filter

Optical sensor and electronic apparatus

An optical sensor includes a light receiving element (for example a photodiode) and an angle limiting filter that limits the incidence angle of incidence light with respect to the light receiving area of the light receiving element. When a wavelength of the incidence light is denoted by λ, a height of the angle limiting filter is denoted by R, and a width of an opening of the angle limiting filter is denoted by d, “d 2 /λR≧2” is satisfied.

Pixel, pixel array, and image sensor including the pixel array

Disclosed are a pixel, a pixel array, and an image sensor including the pixel array. The pixel includes a first photo-sensing unit to detect a visible light and an IR, and a second photo-sensing unit provided at one side of the first photo-sensing unit to detect a light in which the IR is blocked.

Method and device for optoelectronic sensors with ir blocking filter

Semiconductor structures for optoelectronic sensors with an infrared (IR) blocking filter and methods for using such sensors with post-detection compensation for IR content that passes through the IR blocking filter are provided herein.

Automatic wavelength recognition apparatus and method

Provided are an automatic wavelength recognition apparatus and method. The automatic wavelength recognition apparatus includes: a division unit receiving a single optical signal and dividing the received optical signal into a plurality of optical signals; a plurality of filter units filtering the optical signals and having different and wavelength-dependent pass characteristics; a plurality of detection units detecting the filtered optical signals and measuring intensities of the detected optical signals; at least one comparison unit comparing outputs of any two of the detection units; and a wavelength determination unit receiving an output of the at least one comparison unit and determining a wavelength of the above single optical signal using a pre-stored look-up table.

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.

Sloped structure, method for manufacturing sloped structure, and spectrum sensor

A method for manufacturing a sloped structure is disclosed. The method includes the steps of: (a) forming a sacrificial film above a substrate; (b) forming a first film above the sacrificial film; (c) forming a second film having a first portion connected to the substrate, a second portion connected to the first film, and a third portion positioned between the first portion and the second portion; (d) removing the sacrificial film; and (e) bending the third portion of the second film after the step (d), thereby sloping the first film with respect to the substrate.

Wavelength distribution measuring apparatus

Provided is a wavelength distribution measuring apparatus ( 24 ), which includes a diffuser plate ( 52 ) for dispersing light beams radiated from an object to be measured ( 11 ) and a light beam homogenizing optical element ( 53 ) for reflecting, by the side surface ( 53 b ), at least part of the light beams dispersed by the diffuser plate ( 52 ) so that the light beams approximate to the direction of the perpendicular of a light receiving surface and also for guiding the light beams to the light receiving surface, and an optical receiver ( 56 ) including a plurality of light receiving elements for detecting the light beams, the light receiving elements being different from one another in spectral sensitivity characteristic. With this configuration, substantially parallel light beams radiated from the object to be measured ( 11 ) are homogenized at the light receiving surface including the periphery of the light receiving surface.

Two-dimensional imager with solid-state auto-focus

An imaging system having a solid-state auto focusing system advantageously images broadband light reflected from an object to be imaged using a lens objective having chromatic aberration, which focuses different colors of light at different focal planes. Using the color information in the focal planes in conjunction with an object distance determined by a range finder, a luminance plane is constructed that has a focused image of the object. The system provides the focused image of the object without the use of any moving parts.

Sensor-synchronized spectrally-structured-light imaging

A smartphone is adapted for use as an imaging spectrometer, by synchronized pulsing of different LED light sources as different image frames are captured by the phone's CMOS image sensor. A particular implementation employs the CIE color matching functions, and/or their orthogonally transformed functions, to enable direct chromaticity capture. A great variety of other features and arrangements are also detailed.

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.

SENSOR-SYNCHRONIZED SPECTRALLY-STRUCTURED-LIGHT IMAGING

A spectral imaging device is configured to capture color images synchronized with controlled illumination from different color light emitting diodes. A processor in the device applies a coupling factor to sampled color images to convert sampled pixels into spectral channels corresponding to LED color and color filter. Multi-spectral spectricity vectors produced at pixel locations are used along with spatial information to classify objects, such as produce items. 18-. (canceled)9. An apparatus for spectral imaging comprising:an image sensor operable to obtain images, the images comprising pixel values corresponding to locations in a field of view of the image sensor;an illumination source comprising at least three LEDs, each a different color;a drive circuit that selectively strobes on the LEDs synchronized with capture of frames of the images by the image sensor;means for obtaining multi-spectral channel values per pixel corresponding to the LEDs;means for computing a spatial relationship function of pixels sampled from different locations of the field of view; andmeans for classifying an object depicted in the images as being one of plural different classes based on the multi-spectral channels per pixel and spatial relationship function.10. The apparatus of wherein the object comprises a produce item claim 9 , and the means for classifying identifies a type of produce.11. The apparatus of wherein the spatial relationship function comprises a function of multi-spectral values of pixels at 2 or more spatial dimensions.12. The apparatus of wherein the spatial relationship function comprises a function of multi-spectral values of pixels at 3 or more spatial dimensions. This application is a continuation of Ser. No. 15/456,300, filed Mar. 10, 2017 (now patent Ser. No. 10/027,868), which is a continuation of Ser. No. 14/201,852, filed Mar. 8, 2014 (now U.S. Pat. No. 9,593,982), which is a continuation-in-part of Ser. No. 13/840,451, filed Mar. 15, 2013 (now U.S. Pat. No. ...

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.

TECHNIQUE FOR DETERMINING PRESENCE OF A SPECIES IN A SAMPLE

A technique of determining the presence of a species in a sample may include passing light through an optical filter. In an example, the optical filter may include a spatially variant microreplicated layer optically coupled to a wavelength selective filter. The wavelength selective filter may have a light incidence angle-dependent optical band. The spatially variant microreplicated layer may be configured to transmit light to a first optical region of the wavelength selective filter at a first predetermined incidence angle and to a second optical region of the wavelength selective filter at a second predetermined incidence angle. 1. A technique comprising:illuminating a sample with a light source to obtain a characteristic light;passing the characteristic light through a spatially variant microreplicated layer optically coupled to a wavelength selective filter to transmit filtered characteristic light to each region of a plurality of regions of the wavelength selective filter at a respective incidence angle of a plurality of incidence angles, each respective incidence angle associated with a known narrow band of a plurality of narrow bands;sensing a respective intensity of the filtered characteristic light transmitted by each respective region of the wavelength selective filter at a respective sensor element of a plurality of sensor elements;comparing a filtered characteristic spectrum sensed by the plurality of sensor elements with a known reference spectrum associated with a species by curve fitting each sensed respective intensity against the known reference spectrum, wherein the curve fitting comprises matching each sensed respective intensity with a respective expected intensity associated with the respective narrow band associated with the respective region that transmitted the respective intensity of the filtered characteristic light; anddetermining the presence of the species in the sample based on the comparison.2. The technique of claim 1 , wherein the ...

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 ...

Imaging pixels with plasmonic color filter elements

Image sensors may include plasmonic color filter elements that transmit specific wavelengths of incident light. Each plasmonic color filter element may be interposed between a respective microlens and photosensitive area. The plasmonic color filter elements may be formed from a metal layer such as gold, silver, platinum, aluminum, or copper and may have a pattern of openings in the metal layer that is designed to allow transmission of a certain type of light. To prevent cross-talk between adjacent pixels having plasmonic color filter elements, metal walls may be interposed between adjacent plasmonic color filter elements. The metal walls may extend above the upper surface of the metal layer that forms the plasmonic color filter elements. The metal walls may run around the periphery of each plasmonic color filter element.

Imaging device with image dispersing to create a spatially coded image

An image capturing device ( 202 ) can include a sensor array ( 210 ), a lens ( 230 ) positioned at a first distance from an intermediate image ( 235 ), and apolychromat ( 220 ) positioned at a second distance from the lens ( 230 ). The polychromat ( 220 ) can diffract the intermediate image ( 235 ) according to a transform function ( 207 ) to produce a dispersed sensor image ( 215 ) onto the sensor array ( 210 ). The dispersed sensor image ( 215 ) can represent a spatial code of the intermediate image ( 235 ).

Systems and methods for color detection in high-throughput nucleic acid sequencing systems

A sequencing instrument optical system having a combined light source with multiple collinear excitation beams having different respective excitation wavelengths, a sequencing surface having DNA templates and nucleobase labels configured to emit a respective emission light at a different respective emission wavelength upon excitation by one or more of the excitation beams, a color camera configured to detect the emission light of each of the nucleobase labels, a first optical pathway configured to direct the collinear excitation beams from the combined light source to the sequencing surface, and a second optical pathway configured to direct the emission light from the sequencing surface to the color camera.

COLOR PARAMETER MEASUREMENT DEVICE AND COLOR PARAMETER MEASUREMENT METHOD

A color parameter measurement device and a color parameter measurement method are provided. A display light beam from a to-be-tested display panel is split by a beam-splitting assembly into at least testing light beams corresponding to a light-beam-in-first-color filter, a light-beam-in-second-color filter and a light-beam-in-third-color filter respectively. Next, a light-beam-in-first-color component, a light-beam-in-second-color component and a light-beam-in-third-color component of the corresponding testing light beams are transmitted to corresponding receivers through the corresponding filters. Then, the light-beam-in-first-color component, the light-beam-in-second-color component and the light-beam-in-third-color component are converted into electric signals by the corresponding receivers, and then outputted to a processor for color parameter analysis. 1. A color parameter measurement device , comprising a beam-splitting assembly , a light-beam-in-first-color filter , a light-beam-in-second-color filter , a light-beam-in-third-color filter , a light-beam-in-first-color receiver , a light-beam-in-second-color receiver , a light-beam-in-third-color receiver , and a processor , whereinthe beam-splitting assembly is configured to split a display light beam from a to-be-tested display panel into at least a first testing light beam, a second testing light beam and a third testing light beam;the light-beam-in-first-color filter is configured to allow a light-beam-in-first-color component of the first testing light beam to be transmitted to the light-beam-in-first-color receiver;the light-beam-in-first-color receiver is configured to convert the light-beam-in-first-color component into a first electric signal and output the first electric signal;the light-beam-in-second-color filter is configured to allow a light-beam-in-second-color component of the second testing light beam to be transmitted to the light-beam-in-second-color receiver;the light-beam-in-second-color ...

Analog to digital conversion device, illuminance sensor device, and electronic apparatus comprising the illuminance sensor device

An analog to digital conversion device has a plurality of, two, for example, analog to digital converters, and a reference charge quantity interchange section arranged and configured to interchange, among the plurality of analog to digital converters, reference quantities of electric charge (e.g., reference currents or reference capacitances) to be used therein during an analog to digital conversion period.

Detector for optically detecting at least one object

A detector for determining a position of at least one object, where the detector includes: at least one optical sensor, where the optical sensor has at least one sensor region, where the optical sensor is designed to generate at least one sensor signal in a manner dependent on an illumination of the sensor region by illumination light traveling from the object to the detector; at least one beam-splitting device, where the beam-splitting device is adapted to split the illumination light in at least two separate light beams, where each light beam travels on a light path to the optical sensor; at least one modulation device for modulating the illumination light, where the at least one modulation device is arranged on one of the at least two light paths; and at least one evaluation device, where the evaluation device is designed to generate at least one item of information from the at least one sensor signal.

OPTICAL SENSOR SYSTEM TO IDENTIFY OBJECTS AND THEIR MOVEMENT

A system of optical sensors determines whether an object is placed on the system by passing light through the sensor layer, detecting light reflected from the object above the sensor layer, and identifying the object based on whether a color detected in the light corresponds to a color of the side of the object that is positioned on the system over the sensor layer. When the system includes multiple optical sensor units, the system may determine where the object has been placed by determining which of the sensor units detect light reflected from the side of the object. 1. A system for detecting presence or absence of an object , the system comprising:one or more sensor units, each of which comprises a plurality of optical sensors, wherein each of the optical sensors is positioned to detect light that is directed from an illumination source; and receive signals from each of the plurality of optical sensors,', 'use the received signals from each of the plurality of optical sensors to generate an output that indicates a color, wherein the color correlates to a surface color of an object; and', 'the color corresponds to a predetermined surface color, determine that the object is placed over the sensor unit, otherwise not determine that the object is placed over the sensor unit., 'a circuit that is electrically connected to each of the optical sensors and that is configured to, when the illumination source directs light into the plurality of optical sensors2. The system of claim 1 , wherein the optical sensors include a calibration sensor configured to measure an intensity of the light.3. The system of claim 1 , wherein the optical sensors are spaced apart with transparent or translucent areas between the optical sensors to permit light from the illumination source to pass between the optical sensors through the sensor layer.4. The system of claim 1 , wherein each of the optical sensors comprises an amorphous silicon p-i-n photodiode.5. The system of claim 1 , wherein ...

DIGITAL INK-SUPPLYING METHOD FOR PRINTING PRESS

The present invention discloses an accurate digital ink supply method for a printing press. The present invention adopts metering-type ink delivery units to replace the ink keys of the traditional printing press, and the metering-type ink delivery units directly deliver the ink to the corresponding ink zones on the metering basis of either volume or mass, realizing the quantitative supply of ink to each one of the ink zones. The present invention can perform accurate adjustment in real time, is high in automation and digitalization degree and large in adjustable range, realizes one-way ink delivery and avoids ink return. 118-. (canceled)19. A digital ink supply method for a printing press , comprising the steps of:calculating an ink demand according to a color plate, anda metering-type ink delivery device outputting ink demanded for printing to a corresponding ink zone to realize quantitative supply of the ink to each one of ink zones; wherein the calculation of the ink demand is based on either volume or mass;wherein in the working state, the ink supply flow rate of each one of the metering-type ink delivery devices is independently set and regulated, wherein the ink supply flow rate of each one of the metering-type ink delivery devices is obtained by calculating the ink demand of a corresponding color plate and ink zone in a single printed sheet and the running speed of the printing press, and the ink supply flow rate of each one of the metering-type ink delivery devices is calculated and regulated in real time as the running speed of the printing press changes.20. The digital ink supply method for a printing press according to claim 19 , wherein the ink demand of each one of the ink zones of each one of the color plates in a single printed sheet is obtained by a calculation method where a dot area of each one of the ink zones of each one of the color plates is multiplied with a required ink layer thickness; wherein the required ink layer thickness is determined ...

Measuring instrument, measurement system, measurement position positioning method and measurement position positioning program using the same

A measurement system is capable of accurately aligning the corresponding measurement points of a plurality of measurement targets to evaluate the measurement targets from measurement results. A measurement system includes a measuring instrument and a PC, the measuring instrument includes a spectroscopic unit that measures a measurement point of a measurement target and a camera that images surroundings in real-time. The PC displays an evaluation image of continuous image information, which is imaged and displayed by the camera on a display screen so as to be superimposed on a reference image of still image information, which has been imaged and stored in memory. By comparing the data obtained by measuring the measurement point in the evaluation image when both images overlap each other and the measurement data of the point in the reference image, it is possible to perform positioning easily and compare the measurement data.

Optical demultiplexing system

Demultiplexing systems and methods are discussed which may be small and accurate without moving parts. In some cases, demultiplexing embodiments may include optical filter cavities that include filter baffles and support baffles which may be configured to minimize stray light signal detection and crosstalk. Some of the demultiplexing assembly embodiments may also be configured to efficiently detect U.V. light signals and at least partially compensate for variations in detector responsivity as a function of light signal wavelength.

Optical modulation micro-nano structure, micro-integrated spectrometer and spectrum modulation method

An optical modulation micro-nano structure, a micro-integrated spectrometer and a spectrum modulation method are provided. The optical modulation micro-nano structure includes an optical modulation layer located on a photoelectric detection layer that can modulate incident light to form differential responses on the photoelectric detection layer, so as to obtain an original spectrum by reconstruction, thereby overcoming the defects that the existing spectrometers rely too much on precise optical components, which makes spectrometers bulky, heavy and expensive. The optical modulation layer includes a base plate and at least one modulation unit; the base plate is provided on the photoelectric detection layer, and each of the modulation units is located on the base plate; each modulation unit is provided with several modulation holes penetrating into the base plate, and respective modulation holes inside a same modulation unit are arranged into a two-dimensional graphic structure with a specific pattern.

FACILITATING CHROMATIC ADAPTATION OF DISPLAY CONTENTS AT COMPUTING DEVICES BASED ON CHROMATIC MONITORING OF ENVIRONMENTAL LIGHT

A mechanism is described for facilitating chromatic adaptation of display contents based on chromatic monitoring of environmental light at computing devices. A method of embodiments, as described herein, includes receiving sensory input data indicating one or more ambient colors based on real-time or periodic chromatic monitoring of environmental light surrounding the apparatus. The method may further include referring the sensory input data against contents of a lookup table to determine color compensation of content based on the one or more ambient colors, and dynamically facilitating chromatic adaptation of existing colors of the content based on the color compensation to compensate the content. The method may further include rendering the compensated content to be displayed via a display device. 141.-. (canceled)42. An apparatus comprising: receive sensory input data indicating one or more ambient colors based on real-time or periodic chromatic monitoring of environmental light surrounding the apparatus;', 'refer the sensory input data against contents to determine color compensation of content based on the one or more ambient colors;', 'dynamically facilitate chromatic adaptation of existing colors of the content based on the color compensation to compensate the content; and', 'render the compensated content to be displayed via a display device., 'one or processors to43. The apparatus of claim 42 , wherein dynamic adaption of the existing colors is further based on a color compensation equation claim 42 , wherein the color compensation equation offers a color conversion pattern to be applied to a plurality of pixels of the content.44. The apparatus of claim 42 , wherein the one or more processors are further to trigger the one or more sensors to sense the plurality of ambient colors claim 42 , and monitor the one or more sensors and the sensing of the plurality of ambient colors.45. The apparatus of claim 42 , wherein the display device comprises at least one ...

COLORIMETER CALIBRATION

A colorimeter with multiple sensings of light to provide higher accuracy measurements of the primaries of a human-standard observer based color space is provided. This color space (target color space) must have the characteristic of two chromaticity coordinates and an achromatic primary like CIELAB, CIELUV or xyY in CIE 1931. The calibration of the device includes training with a set of calibration illuminants. Two sets of calibration-factors are determined. The first set of calibration factors yields intensity of primaries optimized with respect to chromaticity, the second set yields the optimized intensity of the achromatic primary. The combination of these sets of calibration factors enable the colorimeter to deliver values of that light with respect to three primaries of a human-standard-observer-based color space optimized with respect to chromaticity and the achromatic primary. 1. A method of calibrating a colorimeter arranged to measure light with a sensor arrangement providing n sensings with different spectral sensitivities , n being a number greater than or equal to four , and to measure that light in the form of three primaries of a human-standard-observer-based color space , wherein one of the three primaries is an achromatic primary , the method comprising:generating m sets of n sensings for m calibration illuminants with known values of the three primaries, wherein m is a number greater than n,determining a first set of calibration factors that yields chromaticity-optimized values of the primaries when applied to signals measured by the n sensings,by minimizing a norm of chromaticity distances of all calibration illuminants between (i) chromaticity values retrieved by applying the first set of calibration factors to the signals measured by the n sensings, and (ii) known chromaticity values,determining a second set of calibration factors that yields an optimized value of the achromatic primary when applied to the signals measured by the n sensings,by ...

FOCUS SCANNING APPARATUS RECORDING COLOR

Disclosed are a scanner system and a method for recording surface geometry and surface color of an object where both surface geometry information and surface color information for a block of the image sensor pixels at least partly from one 2D image recorded by the color image sensor. A particular application is within dentistry, particularly for intraoral scanning. 1. (canceled)2. A scanner system for recording surface geometry and surface color of an object , the scanner system comprising:a multichromatic light source configured to provide a multichromatic probe light for illumination of the object,at least one image sensor comprising an array of image sensor pixels to capture one or more 2D images of light received from the object, the at least one image sensor is arranged to capture 2D images of light received from the object, anda data processing system configured to use triangulation to derive surface geometry information for a first set of image pixels within a block of the image sensor pixels from a series of 2D images recorded by the at least one image sensor,the data processing system further configured to derive surface color information for a second set of image pixels within the block of the image sensor pixels from at least three 2D images recorded by the at least one image sensor, wherein the surface color information is obtained by combining the second set of the image sensor pixels from the at least three 2D images,where a first image of the at least three 2D images is recorded during illumination by an LED die having a first color,where a second image of the at least three 2D images is recorded during illumination by an LED die having a second color,where a third image of the at least three 2D images is recorded during illumination by a an LED die having a third color,wherein the first set of the image sensor pixels is different from the second set of the image sensor pixels, andwherein the at least three 2D images to derive surface color ...

Compact two-dimensional spectrometer

A two-dimensional spectrometer includes a first mirror, a prism, a diffraction grating, a lens, a second mirror, and a two-dimensional sensor. The first mirror is configured to receive the optical signal from the optical entrance and reflect the optical signal towards the prism. After passing through the prism, the optical signal is provided to the diffraction grating. The diffraction grating diffracts the optical signal so as to generate a diffracted optical signal which is directed back through to prism, wherein the lens configured focuses the diffracted optical signal onto the second mirror. The second mirror reflects the diffracted optical signal back through the lens which focuses the diffracted optical signal onto the two-dimensional sensor. The diffraction grating may be an echelle grating.

Photodiodes for ambient light sensing and proximity sensing

Ambient light sensing and proximity sensing is accomplished using pairs of stacked photodiodes. Each pair includes a shallow diode with a shallow junction depth that is more sensitive to light having a shorter wavelength and a deeper diode with a deeper junction depth more sensitive to light with longer wavelengths. Photodiodes receiving light passed through cyan, yellow, and magenta filters and light passed without a color filter are used to generate red, green, and blue information through a subtractive approach. The shallow diodes are used to generate lux values for ambient light and the deeper diodes are used for proximity sensing. One or more of the deep diodes may be used in correction to lux determinations of ambient light.

METHOD OF HYPERSPECTRAL MEASUREMENT

The present disclosure provides a method of providing a hyperspectral image of a scene comprising a point (p). The method comprises providing an imaging device (′) comprising a two-dimensional image sensing unit () having a spectral characteristic, which varies along at least one direction in a plane parallel with an image sensor (), acquiring a first two-dimensional image () of the scene, the first image comprising the point (p), wherein the spectral content of the scene varies along the direction as a consequence of the varying spectral characteristic of the image sensing unit (), moving the imaging device (′) and the scene relative to each other, acquiring a second two-dimensional image (I) of the scene, the second image comprising the point (p), wherein the spectral content of the scene varies along the direction as a consequence of the varying spectral characteristic of the image sensing unit (), identifying the point (p) in the second image (I) as a second pixel at a position (x, y) depicting the point (p), providing a spectral vector (S(p)) of the point, and providing an updated spectral vector (S′(p)) of the point based on an applicability vector (A(p)) of the point (p), the spectral vector (S(p)) of the point, a spectral value (z(p)) of the second pixel and an applicability vector (B(p)) of the second pixel. 1. A method of providing a hyperspectral image of a scene comprising a point , comprising:providing an imaging device comprising a two-dimensional image sensing unit having a spectral characteristic, which varies along at least one direction in a plane parallel with an image sensor,acquiring a first two-dimensional image of the scene, the first image comprising the point, wherein the spectral content of the scene varies along the direction as a consequence of the varying spectral characteristic of the image sensing unit,moving the imaging device and the scene relative to each other,acquiring a second two-dimensional image of the scene, the second image ...

RECONSTRUCTING LIGHT WAVELENGTH SPECTRUM WITH THIN-FILM DEVICE

A spectrometer device includes: a substrate including multiple light detector elements; a first filter layer on the substrate, in which the first filter layer includes multiple groups of filter stacks, each filter stack in the first filter layer including multiple dielectric films of alternating refractive index; and a second filter layer on the first filter layer, in which the second filter layer includes multiple groups of filter stacks, each filter stack in the second filter layer including multiple dielectric films of alternating refractive index, in which each filter stack in the second filter layer is aligned with both a corresponding filter stack in the first filter layer and a corresponding light detector element to define a respective photodetector channel, and in which each photodetector channel includes a different optical transmission spectrum. 1. A spectrometer device comprising:a substrate comprising a plurality of light detector elements;a first filter layer on the substrate, wherein the first filter layer comprises multiple groups of filter stacks, each filter stack in the first filter layer comprising multiple dielectric films of alternating refractive index; anda second filter layer on the first filter layer, wherein the second filter layer comprises multiple groups of filter stacks, each filter stack in the second filter layer comprising multiple dielectric films of alternating refractive index,wherein each filter stack in the second filter layer is aligned with both a corresponding filter stack in the first filter layer and a corresponding light detector element to define a respective photodetector channel, andwherein each photodetector channel comprises a different optical transmission spectrum.2. The spectrometer device of claim 1 , wherein each group of filter stacks in the first filter layer comprises a same first plurality of different filter stacks claim 1 ,wherein each group of filter stacks in the second filter layer comprises a same ...

OPTICAL SENSOR AND METHOD FOR DETECTING ELECTROMAGNETIC RADIATION

An optical sensor comprises at least four detection channels, where each detection channel comprises a photodetector and a filter with a respective transmission spectrum. The transmission spectra of the at least four filters are different from one another, and the transmission spectra are set such that each of the three CIE color matching functions is a linear combination of the transmission spectra of at least two of the filters. Furthermore, a method for detecting electromagnetic radiation is provided. 1. An optical sensor comprising:at least four detection channels, where each detection channel comprises a photodetector and a filter with a respective transmission spectrum, whereinthe transmission spectra are different from one another, andthe transmission spectra are set such that each of the three CIE color matching functions is a linear combination of the transmission spectra of at least two of the filters.2. The optical sensor according to claim 1 , wherein each transmission spectrum is assigned a scaling factor for at least one linear combination yielding one of the CIE color matching functions.3. The optical sensor according to claim 1 , wherein the wavelength of maximum transmission is at least 380 nm and at most 780 nm for each filter.4. The optical sensor according to claim 1 , wherein the wavelengths of maximum transmission of the filters are equally spaced from each other.5. The optical sensor according to claim 4 , wherein the transmission spectra of the filters partially overlap each other.6. The optical sensor according to claim 4 , wherein the transmission spectra of the filters are linearly independent.7. The optical sensor according to claim 1 , wherein the transmission spectra are set such that at least one transmission spectrum is employed for the linear combinations of two CIE color matching functions.8. The optical sensor according to claim 1 , wherein the filters are one of the following:interference filters,absorption filters,plasmonic ...

OPTICAL SENSOR SYSTEM TO IDENTIFY OBJECTS AND THEIR MOVEMENT

A system of optical sensors determines whether an object is placed on the system by passing light through the sensor layer, detecting light reflected from the object above the sensor layer, and identifying the object based on whether a color detected in the light corresponds to a color of the side of the object that is positioned on the system over the sensor layer. When the system includes multiple optical sensor units, the system may determine where the object has been placed by determining which of the sensor units detect light reflected from the side of the object. 1. A system for detecting presence or absence of an object , the system comprising: the sensor layer comprises a first side, and a second side that is opposite the first side,', 'a first of the optical sensors in each sensor unit is aligned with a color filter of a first color,', 'a second of the optical sensors in each sensor unit is aligned with a color filter of a second color, and', 'each of the optical sensors is positioned to detect light that is received through the second side of the sensor layer;, 'a sensor layer comprising one or more sensor units, each of which comprises a plurality of optical sensors, wherein receive signals from the optical sensors, and', 'use the received signals to generate an output that indicates whether an object of a particular color is placed over the sensor unit., 'a circuit that is electrically connected to each of the optical sensors and that is configured to, when an illumination source directs light into the first side of the sensor layer, past the optical sensors and through the second side of the sensor layer2. The system of claim 1 , wherein the optical sensors of each sensor unit comprise:the first optical sensor, aligned with a red color filter;the second optical sensor, aligned with a blue color filter;a third optical sensor, aligned with a green color filter; anda fourth optical sensor, aligned with a white or gray reflecting layer.3. The system of ...

Light Detection Systems and Methods for Using Thereof

Systems for detecting light (e.g., in a flow stream) are described. Light detection systems according to embodiments include two or more photodetector arrays and an optical adjustment component positioned in an optical path between the photodetector arrays. Systems and methods for measuring light emitted by a sample (e.g., in a flow stream) and kits having two or more photodetector arrays and an optical adjustment component are also provided.

COLOR SENSOR AND METHOD OF ITS PRODUCTION

Embodiments of the invention relate to a method for producing a color sensor with a sensor characteristic adjusted by three sensor elements that each comprise an element characteristic, and a color filter cooperating with the sensor elements and consisting of color filter elements that each comprise a filter element characteristic, and to a color sensor. Embodiments include a method with which a color sensor with a precisely adjustable sensor characteristic can be produced from several photosensitive elements and from simple filter elements is solved in that the particular filter element characteristics are adjusted in such a manner that they have in cooperation with the respective element characteristic an interim characteristic of the sensor which deviates from the sensor characteristic on the whole, wherein the sensor characteristic is generated from the interim characteristic by a transformation algorithm using transformation parameters. 1. A method for producing a color sensor with a sensor characteristic which is adjusted by three sensor elements which each comprise an element characteristic , and a color filter cooperating with the sensor elements and consisting of color filter elements which each comprise a filter element characteristic , characterized in that the particular filter element characteristics are adjusted in such a manner that they have in cooperation with the respective element characteristic an interim characteristic of the sensor which deviates from the sensor characteristic on the whole , wherein the sensor characteristic is generated from the interim characteristic by a transformation algorithm using transformation parameters.2. The method for producing a color sensor with a sensor characteristic according to claim 1 , characterized in that the color filter consisting of color filter elements is produced from dielectric and metallic layers alternately arranged on each other.3. The method for producing a color sensor with a sensor ...

Imaging apparatus, methods, and applications

A polarization and color sensitive pixel device and a focal plane array made therefrom. Each incorporates a thick color/polarization filter stack and microlens array for visible (0.4-0.75 micron), near infrared (0.75-3 micron), mid infrared (3-8 micron) and long wave infrared (8-15 micron) imaging. A thick pixel filter has a thickness of between about one to 10× the operational wavelength, while a thick focal plane array filter is on the order of or larger than the size or up to 10× the pitch of the pixels in the focal plane array. The optical filters can be precisely fabricated on a wafer. A filter array can be mounted directly on top of an image sensor to create a polarization camera. Alternatively, the optical filters can be fabricated directly on the image sensor.

POLARIZATION PROPERTY IMAGE MEASUREMENT DEVICE, AND POLARIZATION PROPERTY IMAGE MEASUREMENT METHOD

A polarization property image measurement device includes: a first radiation unit that radiates light beams in different polarization conditions onto a target object after subjecting the light beams to intensity modulation at frequencies different from one another; a light receiving unit including first photoelectric conversion units that photoelectrically convert the light beams having been radiated from the first radiation unit and scattered at the target object in correspondence to each of the different polarization conditions, and second photoelectric conversion units that photoelectrically convert visible light from the target object; and a processor that detects signals individually output from the first photoelectric conversion units at the different frequencies and differentiates each signal from other signals so as to determine an origin of the signal as one of the light beams; and creates an image of the target object based upon signals individually output from the second photoelectric conversion units. 1. An image sensor , comprising:a light receiver that is disposed in a first substrate and receives light from a target object onto which a plurality of light beams having different conditions are radiated, the light receiver comprising a plurality of first photoelectric converters photoelectrically converting respective polarized light beams having different polarizations from one another; anda discriminating unit that is disposed in a second substrate deposited on the first substrate and differentiate, among signals output from the plurality of the first photoelectrically converters, each signal from other signals so as to determine an origin of the signal as one of the plurality of light beams.2. The image sensor according to claim 1 , further comprising:a first radiator that radiates the plurality of light beams onto the target object after subjecting the plurality of light beams to intensity modulation at frequencies different from one another, wherein ...

Hyperspectral imaging in a light deficient environment

An endoscopic imaging system for use in a light deficient environment includes an imaging device having a tube, one or more image sensors, and a lens assembly including at least one optical elements that corresponds to the one or more image sensors. The endoscopic system includes a display for a user to visualize a scene and an image signal processing controller. The endoscopic system includes a light engine having an illumination source generating one or more pulses of electromagnetic radiation and a lumen transmitting one or more pulses of electromagnetic radiation to a distal tip of an endoscope.

Spectral and spatial calibration illuminator and system using the same

A method of spatially and spectrally calibrating a spectrophotometer including: a) emitting a white light illumination output from a full width illumination source; b) illuminating a test patch with the white light illumination output; c) reflecting a portion of the white light illumination output from the test patch to form a white light reflected illumination output; d) receiving the white light reflected illumination output at first, second and third rows of photosensitive elements to form a first calibration data set; e) emitting a cyan light illumination output from the full width illumination source; f) illuminating the test patch with the cyan light illumination output; g) reflecting a portion of the cyan light illumination output from the test patch to form a cyan light reflected illumination output; and, h) receiving the cyan light reflected illumination output at the second and third rows of photosensitive elements to form a second calibration data set.

Hyperspectral imaging with tool tracking in a light deficient environment

An endoscopic imaging system for use in a light deficient environment includes an imaging device having a tube, one or more image sensors, and a lens assembly including at least one optical elements that corresponds to the one or more image sensors. The endoscopic system includes a display for a user to visualize a scene and an image signal processing controller. The endoscopic system includes a light engine having an illumination source generating one or more pulses of electromagnetic radiation and a lumen transmitting one or more pulses of electromagnetic radiation to a distal tip of an endoscope.

FACILITATING CHROMATIC ADAPTATION OF DISPLAY CONTENTS AT COMPUTING DEVICES BASED ON CHROMATIC MONITORING OF ENVIRONMENTAL LIGHT

A mechanism is described for facilitating chromatic adaptation of display contents based on chromatic monitoring of environmental light at computing devices. A method of embodiments, as described herein, includes receiving sensory input data indicating one or more ambient colors based on real-time or periodic chromatic monitoring of environmental light surrounding the apparatus. The method may further include referring the sensory input data against contents of a lookup table to determine color compensation of content based on the one or more ambient colors, and dynamically facilitating chromatic adaptation of existing colors of the content based on the color compensation to compensate the content. The method may further include rendering the compensated content to be displayed via a display device. 121.-. (canceled)22. An apparatus comprising:reception/detection logic to receive sensory input data indicating one or more ambient colors based on real-time or periodic chromatic monitoring of environmental light surrounding the apparatus;evaluation and reference logic to refer the sensory input data against contents of a lookup table to determine color compensation of content based on the one or more ambient colors;adaption logic to dynamically facilitate chromatic adaptation of existing colors of the content based on the color compensation to compensate the content; andrendering logic to render the compensated content to be displayed via a display device.23. The apparatus of claim 22 , wherein the lookup table comprises a non-linear chromatic compensation lookup table based on input parameters indicating a plurality of color composition patterns for a plurality of ambient colors of the light claim 22 , wherein the plurality of ambient colors include the one or more ambient colors.24. The apparatus of claim 22 , wherein the one or more ambient colors of the light are sensed by one or more sensors including one or more of a camera sensor and a Red Green Blue (RGB) ...

METAL MIRROR BASED MULTISPECTRAL FILTER ARRAY

A device may include a multispectral filter array disposed on the substrate. The multi spectral filter array may include a first metal mirror disposed on the substrate. The multi spectral filter may include a spacer disposed on the first metal mirror. The spacer may include a set of layers. The spacer may include a second metal mirror disposed on the spacer. The second metal mirror may be aligned with two or more sensor elements of a set of sensor elements. 120-. (canceled)21. A device , comprising:a set of optical sensors associated with a substrate; and a first silver (Ag) metal mirror,', 'a second silver (Ag) metal mirror, and', 'a plurality of spacer layers disposed between the first silver (Ag) metal mirror and the second silver (Ag) metal mirror., 'the multispectral filter array including, 'a multispectral filter array deposited on the substrate,'}22. The device of claim 21 , where the set of optical sensors are embedded into the substrate.23. The device of claim 21 , where the set of optical sensors are associated with receiving a portion of light from a light source.24. The device of claim 21 , where the set of optical sensors is a back illuminated sensor array.25. The device of claim 21 , where the plurality of spacer layers comprise a material selected to reduce an angle shift of light directed from a light source toward the set of optical sensors.26. The device of claim 21 , where the set of optical sensors are a plurality of optical sensors of a super array.27. The device of claim 21 , where the substrate includes a silicon-based substrate.28. The device of claim 21 , where the set of optical sensors are disposed in a silicon-based wafer.29. The device of claim 28 ,where the substrate includes a glass-based substrate, andwhere the silicon-based wafer is bonded to the glass-based substrate.30. The device of claim 21 , where the substrate includes one or more conductive pathways to provide information obtained by the set of optical sensors.31. A device ...

Method for calibrating the colour of a colour monitor with led backlighting

A method for calibrating the colour of a colour monitor with LED backlighting includes at least one area of an image displayed on the colour monitor ( 1 ) remotely measured in a spatially resolved manner using a colour sensor ( 7 ) configured as an image or line sensor. Deviations of measured colour values from desired colour values are determined in a spatially resolved manner and LED backlighting of the colour monitor ( 1 ) is actuated for local correction of the deviations. When the colour sensor ( 7 ) is integrated into the remote control ( 2 ) of a colour television, the user aims the remote control ( 2 ) at the television, and the colour sensor ( 7 ) records a test image ( 3 ) of the colour television and evaluates it to determine colour corrections. The method makes it possible for the colour of a colour television to be calibrated ex works or in the user's home.

METHOD, SYSTEM, AND MEDIUM HAVING STORED THEREON INSTRUCTIONS THAT CAUSE A PROCESSOR TO EXECUTE A METHOD FOR OBTAINING IMAGE INFORMATION OF AN ORGANISM COMPRISING A SET OF OPTICAL DATA

The present disclosure relates to methods and systems for obtaining image information of an organism including a set of optical data; calculating a growth index based on the set of optical data; and calculating an anticipated harvest time based on the growth index, where the image information includes at least one of: (a) visible image data obtained from an image sensor and non-visible image data obtained from the image sensor, and (b) a set of image data from at least two image capture devices, where the at least two image capture devices capture the set of image data from at least two positions. 1. A method comprising:obtaining image information of an organism comprising a set of optical data;calculating a growth index based on the set of optical data; andcalculating an anticipated harvest time based on the growth index, (a) visible image data obtained from an image sensor and non-visible image data obtained from the image sensor, and', '(b) a set of image data from at least two image capture devices, wherein the at least two image capture devices capture the set of image data from at least two positions., 'wherein the image information comprises at least one of2. The method of claim 1 , further comprising transferring the anticipated harvest time to an outside party.3. The method of claim 2 , wherein the outside party is at least one of a retailer claim 2 , a general consumer claim 2 , a restaurant claim 2 , and a food producer.4. The method of claim 1 , wherein the visible image data is generated based on a demosaiced RGB pixel signal.5. The method of claim 1 , wherein the non-visible image data is generated based on a demosaiced R and IR signal.6. The method of claim 1 , wherein the non-visible image data is generated based on a R and IR signal without demosaicing.7. The method of claim 1 , wherein the visible image data is generated based on a demosaiced RGB pixel signal claim 1 , and wherein the near-infrared ray image data is generated based on a demosaiced ...

FOCUS SCANNING APPARATUS RECORDING COLOR

Disclosed are a scanner system and a method for recording surface geometry and surface color of an object where both surface geometry information and surface color information for a block of the image sensor pixels at least partly from one 2D image recorded by the color image sensor. A particular application is within dentistry, particularly for intraoral scanning. 1a multichromatic light source configured for providing a multichromatic probe light for illumination of the object,a color image sensor comprising an array of image sensor pixels for capturing one or more 2D images of light received from said object, anda data processing system configured for deriving both surface geometry information and surface color information for a block of said image sensor pixels at least partly from one 2D image recorded by said color image sensor.. A scanner system for recording surface geometry and surface color of an object, the scanner system comprising: The present application is a continuation of U.S. application Ser. No. 14/764,087, filed on Jul. 28, 2015, which is a U.S. National Stage of International Application No. PCT/EP2014/052842, filed on Feb. 13, 2014, which claims the benefit of U.S. Provisional Application No. 61/764,178, filed on Feb. 13, 2013, and the benefit of Danish Application No. PA 2013-70077, filed on Feb. 13, 2013. The entire contents of each of U.S. application Ser. No. 14/764,087, International Application No. PCT/EP2014/052842, U.S. Provisional Application No. 61/764,178, and Danish Application No. PA 2013-70077 are hereby incorporated herein by reference in their entirety.The application relates to three dimensional (3D) scanning of the surface geometry and surface color of objects. A particular application is within dentistry, particularly for intraoral scanning.3D scanners are widely known from the art, and so are intraoral dental 3D scanners (e.g., Sirona Cerec, Cadent Itero, 3Shape TRIOS).The ability to record surface color is useful in many ...

Electronic Device With Color Sensing Ambient Light Sensor

An electronic device may be provided with a display mounted in a housing. A color sensing ambient light sensor may measure the color of ambient light. The color sensing ambient light sensor may be mounted in alignment with an ambient light sensor window formed in an inactive area of the display. The color sensing ambient light sensor may be formed from detectors on a semiconductor substrate. The detectors may include detectors that have spectral sensitivity profiles matching those of color matching functions. The color sensing ambient light sensor may include an infrared light detector. Light redirecting structures such as a diffuser, prism film, negative lens film, or privacy film may be used in directing light into the ambient light sensor. The color sensing ambient light sensor may be calibrated by exposing the sensor to light sources of different types.

COLOUR SENSOR ARRANGEMENT AND METHOD FOR COLOUR SENSOR CALIBRATION

A colour sensor arrangement comprises a colour sensor arranged to generate at least a first channel signal being indicative of a colour of light incident on the colour sensor. A processing unit is connected to the colour sensor and arranged to generate a tuple of colour signals by processing the at least first channel signal. A memory is connected to the processing unit and a control unit is connected to the processing unit and to the memory. Furthermore, the control unit is arranged to receive calibration data relating the tuple of colour signals to a calibrated tuple of colour signals and arranged to store said calibration data (M) by means of the memory. An interface is connected to the processing unit and comprises an interface terminal. 1. A colour sensor arrangement , comprising:a colour sensor implemented on a chip and arranged to generate at least a first channel signal being indicative of a colour of light incident on the colour sensor,a processing unit implemented on the chip and connected to the colour sensor and arranged to generate a tuple of colour signals by processing the at least first channel signal,a memory implemented on the chip and connected to the processing unit,{'b': '3', 'a control unit implemented on the chip and connected to the processing unit and to the memory (), and arranged to receive calibration data relating the tuple of colour signals to a calibrated tuple of colour signals and arranged to store said calibration data by means of the memory, and'}an interface connected to the processing unit and comprising an interface terminal.2. The colour sensor arrangement according to claim 1 , wherein the control unit is arranged to receive the calibration data via the interface.3. The colour sensor arrangement according to claim 1 , wherein the memory is configured to be read out by an external component or by a dedicated unit of the colour sensor arrangement and to provide the calibration data to perform colour transformation.4. The colour ...

PHOTODETECTOR AND ELECTRONIC APPARATUS

A photodetector includes a semiconductor substrate; a light receiving part for signal detection and an infrared light receiving part which are formed in the semiconductor substrate and are covered at least by first color filters having a common color; and second color filters which overlap with the first color filters on the infrared light receiving part and are configured to block light in a wavelength range transmitting through the first color filters. 1. A photodetector comprising:a semiconductor substrate;a first light receiving part located on the semiconductor substrate and covered by a first filter for a first color;a second light receiving part located on the semiconductor substrate adjacent to the first light receiving part and covered by the first filter for the first color;a third light receiving part located on the semiconductor substrate adjacent to the first light receiving part and covered by a second filter for a second color; anda fourth light receiving part located on the semiconductor substrate adjacent to the first light receiving part and covered by a third filter for the second color.2. The photodetector of claim 1 , further comprising a fifth light receiving part located on the semiconductor substrate adjacent to the first light receiving part and covered by a fourth filter for a third color.3. The photodetector of claim 2 , further comprising a sixth light receiving part located on the semiconductor substrate adjacent to the fifth light receiving part and covered by the fourth filter for the third color.4. The photodetector of claim 1 , further comprising a seventh light receiving part located on the semiconductor substrate adjacent to the fourth light receiving part and covered by the second filter for the second color.5. The photodetector of claim 1 , further comprising two additional light receiving parts located on the semiconductor substrate and being symmetrical with the first light receiving part and the second light receiving part ...

METAL MIRROR BASED MULTISPECTRAL FILTER ARRAY

A device may include a multispectral filter array disposed on the substrate. The multi spectral filter array may include a first metal mirror disposed on the substrate. The multi spectral filter may include a spacer disposed on the first metal mirror. The spacer may include a set of layers. The spacer may include a second metal mirror disposed on the spacer. The second metal mirror may be aligned with two or more sensor elements of a set of sensor elements. 120-. (canceled)21. A method comprising:providing a substrate that includes a set of sensor elements; 'wherein the multiple layers include a metal mirror;', 'depositing multiple layers of a multispectral filter array onto the substrate,'}depositing one or more other layers associated with the multispectral filter array onto the multiple layers; andattaching a lens that alters a characteristic of light that is directed toward a corresponding sensor element of the sensor elements.22. The method of claim 21 , wherein the multiple layers include:a first mirror structure that includes the metal mirror;one or more spacer layers that are deposited onto the first mirror structure; anda second mirror structure that is deposited onto one or more portions of the one or more spacer layers.23. The method of claim 22 , wherein the multiple layers further include:an intermediate layer between the substrate and the first mirror structure.24. The method of claim 21 ,wherein the multiple layers include a mirror structure, andwherein the mirror structure includes a partially transparent material that permits a first portion of light to be directed toward the set of sensor elements and a second portion of the light to be re-directed away from the set of sensor elements.25. The method of claim 21 , wherein the metal mirror includes one of:a silver (Ag)-based material,an aluminum (Al)-based material, ora copper (Cu)-based material.26. The method of claim 21 , wherein depositing the multiple layers comprises:using a pulsed magnetron ...

Viewing and Processing Multispectral Images

Multispectral images, including ultraviolet light and its interactions with ultraviolet light-interactive compounds, can be captured, processed, and represented to a user. Ultraviolet-light related information can be conveniently provided to a user to allow the user to have awareness of UV characteristics and the user's risk to UV exposure. 1. A mobile device comprising:a camera sensor system capable of capturing a multispectral image comprising representations of wavelengths of light in a visible spectrum and an ultraviolet spectrum;a computer system coupled to the camera sensor system and configured to process the multispectral image to detect and identify an area representing a user in the multispectral image;the computer system is further configured to identify one or more areas of interest of the area representing the user by comparing the area representing the user with a predetermined-ultraviolet-light threshold;the computer system is further configured to render a display image for display from the multispectral image;wherein the rendering indicates the identified one or more areas of interest by giving the identified one or more areas of interest a false color on top of the representation of wavelengths of light in the visible spectrum; anda display coupled to the computer system and operable to display the rendered display image at approximately the same time the multispectral image is captured.2. The mobile device of claim 1 , wherein the predetermined-ultraviolet-light threshold is based on an ultraviolet reflectivity of a topical compound comprising sunscreen.3. The mobile device of claim 1 , wherein the predetermined-ultraviolet-light threshold is based on an ultraviolet reflectivity of a portion of the area representing a user n the multispectral images to (i) another portion of the portion of the area representing a user in the multispectral images or (ii) an area outside the portion of the area representing a user in the multispectral images.4. The ...

Metal mirror based multispectral filter array

A device may include a multispectral filter array disposed on the substrate. The multispectral filter array may include a first metal mirror disposed on the substrate. The multispectral filter may include a spacer disposed on the first metal mirror. The spacer may include a set of layers. The spacer may include a second metal mirror disposed on the spacer. The second metal mirror may be aligned with two or more sensor elements of a set of sensor elements.

Light receiving device

A light receiving device includes a plurality of photoelectric conversion element units 10 A 1 , 10 A 2 , 10 A 3 , and 10 A 4 each composed of four types of photoelectric conversion elements including four types of polarization elements 50 1 , 50 2 , 50 3 , and 50 4 and further includes a polarized component measurement unit 91 and a polarized component calculation unit 92, wherein the polarized component measurement unit 91 obtains, for example, a first polarized component and a third polarized component on the basis of output signals from a first photoelectric conversion element and a third photoelectric conversion element, and the polarized component calculation unit 92 calculates, for example, polarized components of a third polarization azimuth and a first polarization azimuth in the first polarized component and the third polarized component on the basis of the obtained third polarized component and the first polarized component.

Optical sensing device and method for manufacturing an optical sensing device

An optical sensing device comprises a photodetector array comprising at least one first photodetector and at least one second photodetector, the photodetector array being arranged on a semiconductor substrate. The optical sensing device further comprises a filter stack arranged on the substrate and covering the photodetector array. The filter stack comprises at least two first lower dielectric mirrors and at least two second lower dielectric mirrors, where a first and a second lower mirror are arranged above the first photodetector and a first and a second lower mirror are arranged above the second photodetector, and where the first lower mirrors have a different thickness in vertical direction which is perpendicular to the main plane of extension of the substrate than the second lower mirrors. The filter stack further comprises a spacer stack arranged on the first and second lower mirrors, and an upper dielectric mirror arranged on the spacer stack and covering the photodetector array. Furthermore, a method for manufacturing an optical sensing device is provided.

Imaging device

An imaging device includes a light splitting unit which splits first light from a subject into second light and third light, first and second imaging units, and an arithmetic unit. The first light includes the second light having infrared light and at least one of green light and blue light, and the third light having red light or the green light. The first imaging unit includes a first and a second light reception regions. The first light reception region generates at least one of the group consisting of a B signal according to the blue light and a G signal according to the green light. The second light reception region generates an IR signal according to the infrared light. The arithmetic unit generates a visible light image signal from the R signal, the G signal, and the B signal and generates an infrared light image signal from the IR signal.

Viewing and Processing Multispectral Images

Multispectral images, including ultraviolet light and its interactions with ultraviolet light-interactive compounds, can be captured, processed, and represented to a user. Ultraviolet-light related information can be conveniently provided to a user to allow the user to have awareness of UV characteristics and the user's risk to UV exposure.

Polarization property image measurement device, and polarization property image measurement method

A polarization property image measurement device includes: a first radiation unit that radiates light beams in different polarization conditions onto a target object after subjecting the light beams to intensity modulation at frequencies different from one another; a light receiving unit including first photoelectric conversion units that photoelectrically convert the light beams having been radiated from the first radiation unit and scattered at the target object in correspondence to each of the different polarization conditions, and second photoelectric conversion units that photoelectrically convert visible light from the target object; and a processor that detects signals individually output from the first photoelectric conversion units at the different frequencies and differentiates each signal from other signals so as to determine an origin of the signal as one of the light beams; and creates an image of the target object based upon signals individually output from the second photoelectric conversion units.

Sensor-synchronized spectrally-structured-light imaging

A spectral imaging device is configured to capture color images synchronized with controlled illumination from different color light emitting diodes. A processor in the device applies a coupling factor to sampled color images to convert sampled pixels into spectral channels corresponding to LED color and color filter. Multi-spectral spectricity vectors produced at pixel locations are used along with spatial information to classify objects, such as produce items.

Optical filters having spatially variant microreplicated layers

In an example, an example article may include a spatially variant microreplicated layer optically coupled to a wavelength selective filter. The wavelength selective filter may have a light incidence angle-dependent optical band. The spatially variant microreplicated layer may be configured to transmit light to a first optical region of the wavelength selective filter at a first predetermined incidence angle and to a second optical region of the wavelength selective filter at a second predetermined incidence angle.

VIEWING AND PROCESSING MULTISPECTRAL IMAGES

Multispectral images, including ultraviolet light and its interactions with ultraviolet light-interactive compounds, can be captured, processed, and represented to a user. Ultraviolet-light related information can be conveniently provided to a user to allow the user to have awareness of UV characteristics and the user's risk to UV exposure. 1. A mobile device comprising:a camera sensor system capable of capturing a multispectral image at approximately the same time, the multispectral image comprising representations of wavelengths of light in a visible spectrum and an ultraviolet spectrum;a computer system coupled to the camera sensor and configured to process the multispectral image to identify an area of interest by comparing the intensity of ultraviolet light in the multispectral image to a predetermined-ultraviolet-light threshold;wherein the computer system is further configured to render a display image for display from the multispectral;wherein the rendering indicates whether the area of interest lacks ultraviolet protection by identifying the portion of the area of interest with a false color on top of the representation of wavelengths of light in the visible spectrum; anda display coupled to the computer system processor and operable to display the rendered display image at approximately the same time the multispectral image is captured.2. The mobile device of 1 , wherein the predetermined-ultraviolet-light threshold is based on a ultraviolet reflectivity of a topical compound comprising sunscreen.3. The mobile device of 1 , wherein the predetermined-ultraviolet-light threshold is based on a ultraviolet reflectivity of a topical compound or a relative-ultraviolet-light threshold based on the reflectivity of a portion of the area of interest in the multispectral images to (i) another portion of the area of interest in the multispectral images or (ii) the surrounding environment outside the area of interest in the multispectral images.4. The mobile device of ...

INFORMATION CODING AND DECODING IN SPECTRAL DIFFERENCES

Information is encoded in an image signal by exploiting spectral differences between colors that appear the same when rendered. These spectral differences are detected using image sensing that discerns the spectral differences. Spectral difference detection methods include using sensor-synchronized spectrally-structured-light imaging, 3D sensors, imaging spectrophotometers, and higher resolution Bayer pattern capture relative to resolution of patches used to convey a spectral difference signal. 1. A method for encoding an information signal in spectral differences within an image signal , the method comprising , with a programmed processor:generating an information signal comprising message symbols;mapping message signals of the information signal to insertion locations within a host image signal;at the locations, inserting the information signal by computing values for color components at the locations so as to form a spectral difference signal between ink applied at a first pixel location and ink applied at a second pixel location to encode a message symbol in relative spectral difference between the ink at the first and second pixel locations, the computing encoding relative spectral differences at the locations that conveys the information signal within the host image, the spectral difference signal representing a distinguishable spectra between two or more colors that appear similar in the human visual system at the insertion locations within the host image signal, wherein the relative spectral differences comprise differences between spectral distributions of inks at corresponding pairs or sets of locations.2. The method of wherein the distinguishable spectra comprises distinguishable spectra of a first color channel relative to a second color channel claim 1 , which are metameric pairs.3. The method of wherein the first channel comprises a K channel claim 2 , and the second channel comprises a combination of C claim 2 , M and Y channels.4. The method of the ...

FOCUS SCANNING APPARATUS RECORDING COLOR

Disclosed are a scanner system and a method for recording surface geometry and surface color of an object where both surface geometry information and surface color information for a block of the image sensor pixels at least partly from one 2D image recorded by the color image sensor. A particular application is within dentistry, particularly for intraoral scanning. 1. (canceled)2. A scanner system for recording surface geometry and surface color of an object , the scanner system comprising: a first light source configured to provide a probe light for illumination of the object, the first light source being configured to illuminate the object during a first time-interval with light having one or more wavelength(s) in the ultraviolet domain, or in the blue domain of the visible domain;', 'a second light source configured to provide a probe light for illumination of the object, the second light source being configured to illuminate the object during a second time-interval with light having a plurality of wavelengths in the visible domain; and', 'at least two image sensors comprising an array of image sensor pixels to capture a plurality of 2D images of light received from the object, the at least two image sensors are arranged to capture 2D images of light received from the object, the at least two image sensors are configured such that a first series of images are captured during the first time-interval, and configured such that a second series of images are captured during the second time-interval; and, 'an intraoral scanner configured as a triangulation scanner, comprising surface geometry information based on triangulation from the first series of 2D images; and', 'color information based on averaging the second series of 2D images., 'a data processing system configured to derive3. The scanner system according to claim 2 , wherein the first light source is a part of the second light source.4. The scanner system according to claim 2 , wherein the second light source ...

Spectral detection device for detecting spectral components of received light

The present invention relates to a spectral detection device ( 100 ) for detecting spectral components of received light, wherein the spectral detection device ( 100 ) comprises a filtering structure ( 110 ) arranged to filter the received light and output light with a wavelength within a predetermined wavelength range; and a light sensor ( 120 ) arranged to detect the light output by the filtering structure ( 110 ), wherein the filtering structure ( 110 ) is variable to allow a variation of the predetermined wavelength range over time. The arrangement enables a compact spectral detection device that may be provided at a low cost.

Detector Structure for Electromagnetic Radiation Sensing

An apparatus with at least two electromagnetic radiation sensor cells that include graphene as an electromagnetic radiation absorbing material and electrical connections between the at least two sensor cells. The electrical connections are at least partially made of graphene. 1. An apparatus , comprising a sensor structure that comprises:at least two electromagnetic radiation sensor cells, the sensor cells comprising graphene as an electromagnetic radiation absorbing material; andelectrical connections between the at least two sensor cells, wherein the electrical connections are at least partially made of graphene.2. The apparatus of claim 1 , wherein the electrical connections are fully made of graphene.3. The apparatus of claim 1 , comprising a plurality of said sensor cells and a plurality of said electrical connections made of graphene.4. An apparatus of claim 1 , wherein the sensor cells form a row of sensor cells.5. An apparatus of claim 1 , wherein the sensor cells form an array of sensor cells.6. An apparatus of claim 1 , wherein the electrical connections between the sensor cells comprise graphene layers that extend into the sensor cells.7. An apparatus of claim 1 , wherein the sensor cells form a row of sensor cells and the electrical connections between the sensor cells comprise graphene layers that extend through sensor cells of the row of sensor cells.8. An apparatus of claim 1 , wherein the sensor cells form a row of sensor cells and the electrical connections between the sensor cells comprise graphene layers that extend over sensor cells of the row of sensor cells.9. An apparatus of claim 1 , wherein the sensor structure comprises graphene layers that extend through a plurality of sensor cells of the structure.10. The apparatus of claim 1 , wherein graphene layers that extend through a plurality of sensor cells of the structure form said electrical connections between the sensor cells.11. An apparatus of claim 1 , wherein the sensor cells comprise a ...

COLOR SENSING SYSTEM AND METHOD FOR SENSING, DISPLAYING AND COMPARING COLORS ACROSS SELECTABLE LIGHTING CONDITIONS

A modular device includes base and color sensing portions. The color sensing portion has a face, a controlled light source offset from the face to define an interior, the face configured to engage a target surface about a perimeter of the device housing wherein ambient light is restricted from entering the interior. A color sensor receives light reflected from the target surface and generates output signals representative of a surface color. The base portion communicates with the color sensor and a user device having a hosted program which generates a user interface enabling users to provide control input for the color sensor. The program further receives the output signals from the color sensing device and displays a first image of the detected color, and displays a second image of a user-selected color beside the first image. Color data values are further displayed corresponding to the difference between displayed colors. 1. A color sensing system comprising: a housing having an external perimeter and a face,', 'a controlled light source residing within the housing and offset from the face to define an interior within the perimeter of the housing, the face configured to engage a target surface about the perimeter of the housing wherein ambient light is substantially restricted from entering the interior, and', 'a color sensor arranged to receive light radiated by the controlled light source and reflected from the target surface when the face of the color sensing device engages the target surface, the sensor further effective to generate output signals representative of a color of the target surface;, 'a color sensing device further comprising'}a controller configured to control the plurality of light-emitting diodes to be turned off or on across a plurality of lighting power levels in response to an input control signal; generate a user interface via the display unit enabling a user to select from a plurality of available lighting conditions for the color sensing ...

METHOD FOR CONTROLLING A LIGHTING SYSTEM

A control method is provided for controlling a lighting system for automatically adjusting the colour temperature of the lighting system, by adjusting the colour temperature of the light emitted by the lighting system during one day according to a pre-set daily emission profile; the colour temperature emitted by the lighting system is progressively adjusted during the day according to a daily emission profile represented by a spline function consisting of a plurality of spline function portions corresponding to respective pre-set time periods; the daily emission profile is, moreover, modified based on a geographic position and, in particular, a latitude of the lighting system being controlled, as well as on the current date. 1. A control method for controlling a lighting system and automatically adjusting the colour temperature of the lighting system , comprising a step for adjusting the colour temperature of the light emitted by the lighting system during one day according to a pre-set daily emission profile; characterised in that the colour temperature of the light emitted by the lighting system is progressively adjusted during the day according to a daily emission profile represented by a spline function consisting of a plurality of spline function portions corresponding to respective pre-set time periods.2. A control method according to claim 1 , wherein in each period the colour temperature monotonically increases or decreases.3. A control method according to claim 1 , comprising a step of acquiring a geographic position and in particular a latitude of the controlled lighting system; a step of acquiring a current date; a step of changing the daily emission profile depending on the acquired position and date.4. A control method according to claim 1 , wherein the daily emission profile is determined by using a spline function specific for a certain day of the year and for a certain latitude.5. A control method according to claim 1 , comprising a step of ...

Brightness colorimeter having measurement error caused by linearly polarized light, which is corrected

A brightness colorimeter having a measurement error caused by linearly polarized light, which is corrected, includes: a lens module to which light irradiated from one side is input; a polarization conversion module configured to penetrate the light input through the lens module to convert polarization characteristics; a spectral module provided in one unit block to reflect and penetrate the light input through the polarization conversion module so as to branch the light in different three directions; filter modules arranged on progress paths of the light branched in different three direction through the spectral module to penetrate monochromatic light beams having specific spectra among the light branched in the three directions; and measurement modules arranged to correspond to exit angles of the monochromatic light beams penetrated through the filter modules, to measure at least one of a brightness, a colorimeter and a defect obtained by the monochromatic light beams.

Method, system, and medium having stored thereon instructions that cause a processor to execute a method for obtaining image information of an organism comprising a set of optical data

The present disclosure relates to methods and systems for obtaining image information of an organism including a set of optical data; calculating a growth index based on the set of optical data; and calculating an anticipated harvest time based on the growth index, where the image information includes at least one of: (a) visible image data obtained from an image sensor and non-visible image data obtained from the image sensor, and (b) a set of image data from at least two image capture devices, where the at least two image capture devices capture the set of image data from at least two positions.

Three dimensional imaging apparatus with color sensor

An imaging apparatus includes a first and second light source, focusing optics, a probe, a detector, an optical transmission medium and a color sensor. The first light source is to generate light beams that travel through the focusing optics along an optical path to the probe. The probe directs the light beams toward a three dimensional object to be imaged. The detector detects returning light beams that are reflected off of the three dimensional object and directed back through the probe and the focusing optics. The second light source is to generate multi-chromatic light. The optical transmission medium is outside of the optical path and is to receive a ray of the multi-chromatic light reflected off of a spot on the three dimensional object and through the probe. The color sensor is to receive the ray from the optical transmission medium and determine a color of the spot on the three dimensional object.

Information coding and decoding in spectral differences

Information is encoded in an image signal by exploiting spectral differences between colors that appear the same when rendered. These spectral differences are detected using image sensing that discerns the spectral differences. Spectral difference detection methods include using sensor-synchronized spectrally-structured-light imaging, 3D sensors, imaging spectrophotometers, and higher resolution Bayer pattern capture relative to resolution of patches used to convey a spectral difference signal.

Optical sensing circuit, optical sensing circuit array, and method for determining light color by using the same

An optical sensing circuit including a capacitor, a light sensing unit, a compensation unit, and a switching element is provided. The light sensing unit, the compensation unit, and the switching element are electrically connected to the capacitor. The light sensing unit senses the light of a first color. The compensation unit senses the light of a second color complementary to the first color. 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, which reduces the amount of the charging or the discharging current when the first current charges or discharges the capacitor whose voltage is read as information for determining light color.

METHOD AND APPARATUS FOR CALIBRATING A COLOR MEASUREMENT INSTRUMENT IN THE FIELD

A method includes determining a fielded color measurement instrument is not calibrated to measure light emitted by a fielded light emitting device, assembling a calibration matrix, such that a product of the calibration matrix multiplied by a response of the fielded color measurement instrument to the light emitted by the fielded light emitting device is a triplet that corresponds to a Commission Internationale de L'éclairage XYZ color space, wherein the calibration matrix contains measurements made by the fielded color measurement instrument of a first plurality of lights emitted by the fielded light emitting device and measurements made by a spectroradiometer of a second plurality of lights emitted by a reference light emitting device of a same make and model as the fielded light emitting device, wherein the spectroradiometer is located remotely from the fielded color measurement instrument, and storing the calibration matrix on the fielded color measurement instrument. 1. A method , comprising:determining, by a processing system, that a fielded color measurement instrument has not been calibrated to measure a color of light emitted by a fielded light emitting device, wherein the fielded color measurement instrument comprises a plurality of color channels;assembling, by the processing system, a calibration matrix, such that a product of the calibration matrix multiplied by a response of the fielded color measurement instrument to the light emitted by the fielded light emitting device is a triplet that corresponds to a Commission Internationale de L'éclairage XYZ color space, wherein the calibration matrix contains measurements made by the fielded color measurement instrument of a first plurality of lights emitted by the fielded light emitting device and measurements made by a spectroradiometer of a second plurality of lights emitted by a reference light emitting device of a same make and model as the fielded light emitting device, wherein the spectroradiometer is ...

Channel-specific micro-optics for optical arrays

A multispectral sensor array can include a combination of ranging sensor channels (e.g., LIDAR sensor channels) and ambient-light sensor channels tuned to detect ambient light having a channel-specific property (e.g., color). The sensor channels can be arranged and spaced to provide multispectral images of a field of view in which the multispectral images from different sensors are inherently aligned with each other to define an array of multispectral image pixels. Various optical elements can be provided to facilitate imaging operations. Light ranging/imaging systems incorporating multispectral sensor arrays can operate in rotating and/or static modes.

Device and Method for Color Indentification

Devices and methods of the present technology utilize wavelength-dependent transmittance of 2D materials to identify the wavelength of an electromagnetic radiation. A wide range of 2D materials can be used, making possible the use of the technology over a large portion of the electromagnetic spectrum, from gamma rays to the far infrared. When combined with appropriate algorithms and artificial intelligence, the technology can identify the wavelength of one or more monochromatic sources, or can identify color through the use of a training set. When applied in an array format, the technology can provide color imaging or spectral imaging using different regions of the electromagnetic spectrum. 1. A device for identifying a wavelength of an electromagnetic radiation within a wavelength band , the device comprising:(i) a first two-dimensional material having a nanoscale thickness and a first wavelength-dependent transmittance over the wavelength band;(ii) a second two-dimensional material having a nanoscale thickness and a second wavelength-dependent transmittance over the wavelength band;(iii) one or more detectors suitable for detecting electromagnetic radiation over the wavelength band; wherein the device is configured to allow the electromagnetic radiation to penetrate the first two-dimensional material and illuminate one of said one or more detectors, whereby the detector provides a first electrical signal, and to allow the electromagnetic radiation to penetrate the second two-dimensional material and illuminate one of said one or more detectors, whereby the detector provides a second electrical signal; and optionally(iv) a processor and a memory comprising instructions for identifying the wavelength of said electromagnetic radiation using said first and second electrical signals.2. The device of claim 1 , wherein the wavelength band is in the range from about 1 picometer to about 100 micrometers claim 1 , or from about 200 nanometers to about 3 micrometers.3. The ...

Aparato y procedimiento para medir caracteristicas opticas de un objeto.

SE EXPONEN SISTEMAS Y PROCEDIMIENTOS PARA LA MEDICION DE LAS CARACTERISTICAS DE COLORES/OPTICAS. UNOS ELEMENTOS/OPTICOS (7) DE FIBRA RECEPTORA PERIMETRALES SE ENCUENTRAN SEPARADOS DE UN ELEMENTO/OPTICA (5) DE FIBRA CENTRAL DE FUENTE, Y VIENDOSE LA LUZ RECIBIDA, REFLEJADA DE LA SUPERFICIE DEL OBJETO (20). LA LUZ PROCEDENTE DE LA OPTICA DE FIBRA PERIMETRAL (7) PASA A UNA VARIEDAD DE FILTROS. EL SISTEMA UTILIZA LA OPTICA DE FIBRA DEL RECEPTOR PERIMETRAL (7) PARA DETERMINAR INFORMACION RESPECTO A LA ALTURA Y ANGULO DE LA SONDA (1) CON RELACION AL OBJETO (20) QUE SE MIDE. BAJO CONTROL DEL PROCESADOR (20), LA MEDICION DEL COLOR PUEDE HACERSE A UNA ALTURA Y ANGULO PREESTABLECIDOS. SE EXPONEN DIVERSAS DISPOSICIONES DE FOTOMETROS ESPECTRALES EN COLOR. SE PUEDEN OBTENER IGUALMENTE DATOS SOBRE TRANSLUCENCIA, FLUORESCENCIA, Y/O TEXTURA SUPERFICIAL. PUEDE PROPORCIONARSE UNA REALIMENTACION AUDIO PARA GUIAR EL USO DEL SISTEMA POR PARTE DEL OPERADOR. LA SONDA (1) PUEDE TENER UNA PUNTA DESMONTABLE O BLINDADA PARA IMPEDIR LA CONTAMINACION.

물체의광학특성측정방법및물체의광학특성의양을정하는방법

색/광학 특성을 측정하는 시스템 및 방법이 설명된다. 주변 수신기 광섬유/소자(7)는 중심 광원 광섬유/소자(5)와 일정 거리를 유지하고 있으며, 물체의 표면으로부터 반사된 빛을 수신한다. 주변 광섬유(7)로부터 나오는 빛은 여러가지 필터를 통과한다. 시스템은 주변 수신기 광섬유(7)를 이용하여 측정될 물체에 대한 탐침(1)의 높이와 각도에 관한 정보를 결정한다. 프로세서 제어하(20)에서, 소정의 높이와 각도에서 색 측정이 행해질 수 있다. 여러 가지 색 스펙트럼 광도계 배열이 설명된다. 또한 반투명, 형광성 및/또는 표면 결 데이터도 얻어질 수 있다. 오디오 피드백이 제공되어 조작자에게 시스템 사용을 안내할 수 있다. 탐침(1)은 오염 방지를 위해 분리가능하거나 차폐된 팁을 구비할 수 있다.

光子的感测

根据本发明的示例实施例，提供了一种设备，该设备包括具有一个或多个石墨烯光子感测层的光电探测结构；以及配置成用作所述光电探测结构的前置放大器的集成石墨烯场效应晶体管，其中所述石墨烯场效应晶体管垂直集成到所述光电探测结构。

Color filter formation method and Image sensor manufactured using thereof

본 발명은 이미지센서의 픽셀간의 광 크로스토크를 방지하고, 광 효율을 향상시키기 위한 칼라필터 형성방법 및 이를 이용하여 제조된 이미지 센서에 관한 것이다. 본 발명에 의한 이미지센서의 칼라필터 형성방법은 (a)상기 이미지 센서 픽셀의 최상층부 메탈층을 형성한 이후에 소정영역에 트렌치 영역을 형성하는 단계; (b)상기 트렌치 영역에 칼라필터를 형성하는 단계; 및 (c)열처리에 의해 상기 칼라필터의 일부를 볼록하게 형성하는 단계;를 포함함을 특징으로 한다. 또한, 상기 칼라필터는 열처리에 의해 상기 칼라필터의 일부를 볼록하게 형성하여 마이크로렌즈 대용으로 사용하는 것을 특징으로 한다. 본 발명에 의하면, 칼라필터가 트렌치 영역 내에 형성되므로써 광 크로스토크를 방지할 수 있으며, 광 효율을 향상시킬 수 있다.

Image processing system

이 화상 처리 시스템은 치과용에 적용된 경우의 예로서, 환자(59)의 의치를 제작할 때에 촬영 장치(1A)에 의해 각각 서로 다른 파장의 복수의 조명광 LED를 발광시키면서 환자(59)의 치아부의 촬영을 행하여, 화상 데이터가 취득된다. 상기 화상 데이터는 처리 장치인 치과용의 파일링 시스템(2A)에 전달되고, 그곳에서 색재현 데이터가 연산에 의해 구해진다. 또한, 상기 색재현 데이터는 공중 회선을 통해 치과 기공소(55)에 송신된다. 거기서, 도재 배합비 계산 데이터베이스(56)를 검색하여, 환자(5)의 치아부의 색조와 합치하는 의치 도재의 배합 데이터가 구해지고, 환자(59) 치아의 색에 매우 가까운 의치가 제작된다. This image processing system is an example of a case where it is applied to the dentistry, and when photographing the denture of the patient 59, the imaging device 1A photographs the teeth of the patient 59 while emitting a plurality of illumination light LEDs of different wavelengths, respectively. Image data is acquired. The image data is transferred to a dental filing system 2A, which is a processing device, where color reproduction data is obtained by calculation. In addition, the color reproduction data is transmitted to the dental laboratory 55 over a public line. There, the porcelain compounding ratio calculation database 56 is searched, and the compounding data of the denture porcelain which matches the color tone of the tooth part of the patient 5 is obtained, and the denture very close to the color of the tooth of the patient 59 is produced. 촬영 장치, 치아부 촬영, 색재현 데이터, 가시광역, 색조 Photographing Device, Dental Imaging, Color Reproduction Data, Visible Wide Area, Color Tone

Device for detecting pulsed laser radiation

The device for detecting pulsed laser radiation has at least a first and a second radiation detector and respectively a first and second filter connected upstream of the radiation detectors, the first filter and the second filters being respectively transparent in one or more narrow-band spectral region(s) of the laser radiation. The second filter is opaque in the spectral regions in which the first filter(s) is/are transparent, and transparent in narrow-band spectral regions closely adjacent thereto. The spectral regions for the transparency of the first and second filters each have approximately the same bandwidth. The light pulses from lasers can be distinguished from other light pulses by forming the difference between the intensity of radiation received by the second and by a first radiation detector (1, 2). <IMAGE>

Color infrared light sensor, camera, and method for capturing images

A light sensor may include an array of light sensitive elements and an array of transmissive filters provided over the array of light sensitive elements and in substantial registration therewith. The array of transmissive filters comprises an infrared transmissive filter that substantially transmits infrared light and substantially blocks visible light as well as at least one non-infrared transmissive filter that substantially transmits non-infrared light.

Image sensor for measuring illumination, proximity and color temperature

Vehicular camera with PCB focus tuning

A camera for a vehicular vision system includes a circuit board having a first surface and a second surface opposite the first surface. The circuit board has a first coefficient of thermal expansion (CTE). An imager is disposed at the first surface of the circuit board, and a lens assembly is at the imager. A bend-countering element is disposed at one of the first side and the second side of the circuit board. The bend-countering element has a second CTE that is different from the first CTE of the circuit board. The bend-countering element is selected so that, with the camera disposed at the vehicle, the bend-countering element counters temperature-induced bending of the circuit board to maintain focus of the lens assembly at the imager.

Vehicle headlight control using imaging sensor

A headlamp control system for a motor vehicle includes an imaging array sensor operable to sense light in a field of view forward of the motor vehicle and a control that is responsive to the imaging array sensor. The control is operable to identify at least one object of interest in the field of view by a spectral signature and/or a geometric organization of the object. The control is operable to control a headlamp of the motor vehicle in response to identifying the object as being at least one of a headlamp of another vehicle, a taillight of another vehicle, a traffic sign, a lane marker and a traffic light. The control may be operable to identify a headlamp and/or taillight of another vehicle in response to light sensed by the imaging array sensor during different exposure periods of the imaging array sensor.

Color infrared light sensor, camera, and method for capturing images

A light sensor may include an array of light sensitive elements and an array of transmissive filters provided over the array of light sensitive elements and in substantial registration therewith. The array of transmissive filters comprises an infrared transmissive filter that substantially transmits infrared light and substantially blocks visible light as well as at least one non-infrared transmissive filter that substantially transmits non-infrared light.

Sensor module for line-by-line optical scanning of moving object has color modules receiving light from same section of single straight object observation line parallel to module line directions

The sensor module has a number of color modules, each associated with different wavelengths of the light received by the module and each with a number of individual sensors arranged in rows. The line directions of all color modules are parallel and the individual color modules are arranged so that light received by all color modules originates from the same section of a single straight observation line on the object, which is parallel to the color module line directions. An Independent claim is also included for a detector arrangement for line-by-line optical scanning of moving object.

Light detection system and method of use thereof

描述了用于检测(例如，流动流中的)光的系统。根据实施方案的光检测系统包括两个或更多个光电检测器阵列，和定位在所述光电检测器阵列之间的光学路径中的光学调整部件。还提供了用于测量由(例如，流动流中的)样本发射的光的系统和方法，以及具有两个或更多个光电检测器阵列和光学调整部件的套件。

Multi-spectral two dimensional imaging spectrometer

A multi-spectral two-dimensional imaging spectrometer includes a combination of single or multi-element, achromatic, well-corrected lenses for imaging a two-dimensional scene on an internal field stop. The light emanating from this intermediate image is collimated with another multi-element, achromatic, well-corrected lens. A spectral separation subassembly that divides the incident light into multiple, identical, and independent arms is placed in the collimated space following the collimating lens. The light in each arm is spectrally filtered based on the properties of an interference filter in each arm. An imaging subassembly composed of a single multi-element, achromatic, well-corrected lens system forms contiguous images onto a single two-dimensional detector array. The images are identical copies of the original object with each copy having a different spectral component and can be viewed on a standard monitor or alternatively on a computer employing an analog-to-digital conversion device.

Multi-spectral two-dimensional imaging spectrometer

A multi-spectral two-dimensional imaging spectrometer includes a combination of achromatic, well-corrected lenses for imaging a two-dimensional scene on an internal field stop. The light emanating from this intermediate image is collimated with another well-corrected lens. A spectral separation subassembly consisting of multiple dichroic filters divides the incident light into multiple, identical, and independent arms. The light in each arm is spectrally filtered based on the properties of the dichroic filters in the separation subassembly. An re-imaging subassembly composed of a well-corrected lens forms contiguous images onto a single two-dimensional detector array. The images are identical copies of the original object with each copy having a different spectral component and can be viewed on a standard monitor or alternatively on a computer employing an analog-to-digital conversion device.

Method and device for measuring color tone of metallic coating

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Controlling method and system for RGB based LED luminary

A method and a system for controlling a RBG based LED luminary which tracks the tristimulus values of both feedback and reference whereby the forward currents driving the LED luminary are adjusted in accordance with the errors between the feed tristimulus values and the reference tristimulus values until the errors are zero.

Device for investigating the spectral and spatial distribution of an electromagnetic radiation emitted from an object comprises radiation-receiving elements made from miniaturized filter elements permeable in the narrow spectral region

Device for investigating the spectral and spatial distribution of an electromagnetic radiation emitted from an object comprises radiation-receiving elements made from miniaturized filter elements (5) permeable in the narrow spectral region. The filter elements and the sensor elements (3) assigned to them form a sensor arranged on the object. Preferred Features: The sensor and filter elements form a sensor and filter array. The spectral regions with a statistical or pseudo-statistical distribution are assigned to the filter elements.

Color recognizing apparatus for color picture

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Multi-mode analyte sensor optoelectronic interface

本文的实施例涉及与可植入的医学装置一起使用的多模式分析物传感器的光电子接口。在实施例中，包括一种可植入的医学装置。该可植入的医学装置可以包括第一化学传感器，该第一化学传感器包括光学激发组件，该光学激发组件包括第一可见光谱发射器、第二可见光谱发射器、以及近红外线(NIR)发射器和紫外线发射器中的至少一个。该第一化学传感器还可以包括光学检测组件，该光学检测组件包括比色响应检测器和光致发光响应检测器。该第一化学传感器还可以包括多模式感测元件，该多模式感测元件包括特定于第一化学分析物的比色响应元件、特定于第二化学分析物的光致发光响应元件。本文还包括其他实施例。

Luminance and color meter with wave plate

본 발명의 직선편광으로 인한 계측오차가 보정된 휘도색도계는 일측으로부터 조사되는 빛이 입사되는 렌즈모듈, 렌즈모듈을 통해 입사된 빛을 투과하여 편광특성을 변환시키는 편광변환모듈, 하나의 단위블록으로 마련되어 편광변환모듈을 거쳐 입사된 빛을 반사 및 투과시켜 서로 다른 세 방향으로 분광시키는 분광모듈, 분광모듈을 통해 서로 다른 세 방향으로 분광되는 각각의 빛의 진행 경로상에 각각 배치되어, 세 방향으로 분광되는 각각의 빛을 특정 스펙트럼을 포함한 단색광으로 투과시키는 필터모듈 및 필터모듈을 통해 투과된 각각의 단색광의 출사각에 대응되도록 배치되어, 각각의 단색광에 의해 얻어지는 휘도, 색도 및 결함 중 적어도 어느 하나의 계측이 가능하도록 마련되는 계측모듈을 포함한다. The luminance colorimeter in which the measurement error due to the linear polarization of the present invention is corrected includes a lens module in which light irradiated from one side is incident and a polarization conversion module that transmits light incident through the lens module and converts the polarization characteristic, A spectroscope module that reflects and transmits the light incident through the polarization conversion module and splits the light into three different directions, and a light source module that is disposed in each of the three light sources, And at least one of luminance, chromaticity, and defects obtained by each monochromatic light is disposed so as to correspond to an emission angle of each monochromatic light transmitted through the filter module and the filter module that transmits each of the spectrally separated light with monochromatic light including a specific spectrum And a measurement module provided so as to be capable of measurement of the measurement object.

System for rgb based led luminary

본 발명은, 피드백 3 자극 값과 기준 3 자극 값을 추적하여, 상기 피드백 3 자극 값과 기준 3 자극 값 간의 오차가 제로가 될 때까지 상기 오차에 따라, LED 발광체를 구동하는 순방향 전류를 조절하는, RGB 기반 LED 발광체 제어 시스템을 제공한다. The present invention tracks a feedback 3 stimulus value and a reference 3 stimulus value, and adjusts the forward current driving the LED light emitter according to the error until the error between the feedback 3 and reference 3 stimulus values becomes zero. To provide RGB-based LED illuminant control system.