Оптический фильтр, оптическая фильтровая система, спектрометр и способ изготовления оптического фильтра

DEVICE AND METHOD FOR MULTISPECTRAL IMAGING IN THE INFRARED

Selon un aspect, la présente description concerne un dispositif (20) d'imagerie multispectrale dans l'infrarouge adapté pour la détection à au moins une première et une deuxième longueur d'onde de détection. Il comprend une matrice de détection (23) comprenant un ensemble de détecteurs élémentaires (23i) de dimensions prédéterminées formant un champ image de dimensions données; et une optique (22) de formation d'image présentant un nombre d'ouverture (N) et une distance focale (F) donnés, adaptées pour la formation en tout point du champ image d'une tache élémentaire de focalisation recouvrant un ensemble d'au moins deux détecteurs élémentaires juxtaposés. Le dispositif comprend en outre une matrice (24) de filtres élémentaires à résonance de mode guidé métallo- diélectriques, agencée devant la matrice de détection (23) à une distance inférieure à une profondeur de foyer de l'optique (22), les dimensions des filtres élémentaires étant adaptées de telle sorte que chaque tache élémentaire ...

SINGLE-SENSOR HYPERSPECTRAL IMAGING DEVICE

A hyperspectral imaging device comprising a photo-sensor array including a plurality of photo-sensors, each providing a respective output, is provided. The device comprises a spectral filter array having a plurality of filter elements, each filter element arranged to filter light received by a respective one or more of the photo-sensors. Each filter element is one of a plurality of filter-types. Each filter-type characterized by a unique spectral pass-band. The device comprises an interface module to select a plurality of subsets of photo-sensor outputs. Each such subset is associated with a single respective filter-type. The device comprises a control module that generates a hyperspectral data cube from the subsets of photo-sensor outputs by generating a plurality of images. Each such image is produced from a single corresponding subset of photo-sensor outputs in the plurality of photo-sensor outputs and so is associated with a corresponding filter-type in the plurality of filter-types ...

Method for recovering spectral shape from spatial output

SOLID-STATE IMAGING ELEMENT AND IMAGING SYSTEM

Visible and infrared dual mode imaging system

SENSOR DEVICE AND METHODS OF USE

A multispectral sensor device may include a sensor array comprising a plurality of channels and one or more processors to determine that a time-sensitive measurement is to be performed, wherein the time-sensitive measurement is to be performed using data collected by one or more channels of the plurality of channels; cause the data to be collected by a proper subset of channels, of the plurality of channels, wherein the proper subset of channels includes the one or more channels; and determine the time-sensitive measurement based on the data. 120-. (canceled)21. A method , comprising: 'wherein the subset of channels is less than all channels of the plurality of channels; and', 'causing, by a multispectral sensor device and for a first measurement, first data to be collected by a subset of channels of a plurality of channels,'} 'wherein the second measurement is associated with a less stringent time sensitivity than the first measurement.', 'causing, by the multispectral sensor device and for a second measurement, second data to be collected by all channels of the plurality channels,'}22. The method of claim 21 , further comprising one of:determining the first measurement based on the first data, orproviding the first data to another device for determination of the first measurement.23. The method of claim 21 , wherein the first data is caused to be collected based on a time sensitivity of the first measurement.24. The method of claim 21 , wherein the first measurement is performed more frequently than the second measurement.25. The method of claim 21 , wherein the first measurement is determined with less latency than the second measurement.26. The method of claim 21 , further comprising:determining that the first measurement and the second measurement are to be performed.27. The method of claim 21 , wherein the first measurement is associated with a higher data rate or resolution than the second measurement.28. The method of claim 21 , wherein the subset of ...

Wearable Spectroscopy Using Filtered Sensor

Methods and systems for spectroscopy are provided. Exemplary methods include: illuminating, with a tunable laser, an analyte with first light; detecting, with a filtered sensor, a first Raman signal; illuminating, with the tunable laser, the analyte using second light; detecting, with the filtered sensor, a second Raman signal, the second Raman signal being shifted from the first Raman signal by a second predetermined increment; illuminating, with the tunable laser, the analyte using third light; detecting, with the filtered sensor, a third Raman signal, the third Raman signal being shifted from the second Raman signal by the second predetermined increment; constructing a Raman spectrum using the first Raman signal, the second Raman signal, and the third Raman signal; and determining at least one molecule of the analyte using the Raman spectrum and a database of predetermined Raman spectra.

Image sensor equipped with additional group of selectively transmissive filters for illuminant estimation, and associated illuminant estimation method

An image sensor includes a two dimensional array of pixel elements, a color filter array, and a digital circuit. The color filter array is superimposed on and in registration with the two dimensional array of pixel elements. The color filter array includes a first group of selectively transmissive filters and a second group of selectively transmissive filters. The first group of selectively transmissive filters is arranged to selectively transmit spectral energy in M colors of the visible spectrum, wherein M is larger than two. The second group of selectively transmissive filters is arranged to selectively transmit spectral energy in N colors of the visible spectrum, wherein any selectively transmissive filter of the first and the second groups of selectively transmissive filters is arranged to transmit spectral energy in one specific color of the visible spectrum, and N is larger than M. An associated illuminant estimation method is also provided.

Gas imager employing an array imager pixels with order filters

A spectral radiation gas detector has at least one lenslet with a circular blazed grating for diffraction of radiation to a focal plane. A detector is located at the focal plane receiving radiation passing through the at least one lenslet for detection at a predetermined diffraction order. A plurality of order filters are associated with the at least one lenslet to pass radiation at wavelengths corresponding to the predetermined diffraction order, each filter blocking a selected set of higher orders. A controller is adapted to compare intensity at pixels in the detector associated with each of the plurality of order filters and further adapted to determine a change in intensity exceeding a threshold.

IMAGE CAPTURING DEVICE AND IMAGE CAPTURING METHOD

Disclosed is an image capturing device having an irradiation unit, an image capturing unit, and a color representation setting unit. The irradiation unit irradiates a subject with infrared rays having different wavelength intensity distributions, the image capturing unit captures images of the subject by the respective infrared rays having different wavelength distributions which are reflected by the subject, and forms image information indicating the respective images, and the color representation setting unit sets color representation information for representing the respective images, which are indicated by the formed image information, by different plain colors. Also disclosed is an image capturing method for separating infrared rays from a subject into infrared rays having different wavelength intensity distributions, capturing images of the subject by the respective infrared rays having different wavelength intensity distributions, forming image information indicating the respective ...

MULTI-PIXEL SPECTRAL SENSOR

A multi-pixel spectroscopy sensor for spectral analysis of a sample under test including an array of pixel elements generating a dataset including a plurality of data values corresponding to the pixel elements upon illumination of the sample by a light source. Each of the pixel elements including a stack of layers including first and second reflective structures, a phase tuning element, a detector element, and contact elements. The sensor further includes a read-out circuit connected to each of the contact elements for simultaneous read-out of a plurality of photocurrents for generating and outputting the dataset for the spectral analysis of the sample under test. The phase tuning element of each of the pixel elements is configured for a different wavelength response of the light and each photodetector of the pixel elements is comprised of a semiconductor material.

HYPERSPECTRAL ELEMENT, HYPERSPECTRAL SENSOR INCLUDING THE SAME, AND HYPERSPECTRAL IMAGE GENERATING APPARATUS

A hyperspectral element includes (1) a multi filter including: a first sub filter through which first wavelength light having a first wavelength passes; and a second sub filter through which second wavelength light having a second wavelength passes, the second wavelength being different from the first wavelength; and (2) a multi detector configured to detect the first wavelength light and the second wavelength light, wherein the first sub filter and the second sub filter may be arranged in series in an optical path of incident light which is incident onto the multi filter.

WINDOW OBSCURATION SENSORS FOR MOBILE GAS AND CHEMICAL IMAGING CAMERAS

ТВЕРДОТЕЛЬНЫЙ ДАТЧИК ИЗОБРАЖЕНИЯ И СИСТЕМА ФОРМИРОВАНИЯ ИЗОБРАЖЕНИЯ

1. Твердотельный датчик изображения, содержащий:двухмерную матрицу пикселей, в которой пиксели, каждый из которых включает в себя устройство фотоэлектрического преобразования, размещены в виде матрицы; имножество типов фильтров, размещенных перед пиксельной областью двухмерной матрицы пикселей, причем каждый из фильтров включает в себя спектральную функцию и периодическую тонкую структуру, более короткую, чем подлежащая обнаружению длина волны,при этом каждый из фильтров образует блок, размеры которого превышают размеры устройства фотоэлектрического преобразования каждого пикселя в двухмерной матрице пикселей, причем один тип фильтра размещен для множества соседних групп устройств фотоэлектрического преобразования,множество типов фильтров размещено для соседних групп блоков с образованием гребенки фильтров,гребенки фильтров размещены в блоке размером N×M, где N и М - целые числа, большие или равные единице, перед пиксельной областью двухмерного массива пикселей.2. Твердотельный датчик изображения по п.1,в котором фильтры включают в себя металлическую тонкую пленку, имеющую периодическую тонкую технологическую структуру, более короткую, чем подлежащая обнаружению длина волны, иметаллический тонкопленочный фильтр выполнен из металла, плазменная частота которого находится в ультрафиолетовом/видимом диапазоне длин волн, и представляет собой одномерную дифракционную решетку или двумерную дифракционную решетку, в которой вогнутые/выпуклые участки или структуры отверстий размещены периодически с шагом в субмикронном масштабе.3. Твердотельный датчик изображения по п.2, в котором металлический тонко� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК H01L 27/14 (13) 2014 101 709 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014101709/28, 11.07.2012 (71) Заявитель(и): СОНИ КОРПОРЕЙШН (JP) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ЁКОГАВА Содзо (JP) 28.07.2011 JP 2011-165786 (85) Дата начала рассмотрения ...

Device for determining the concentration of at least one gas component in a breathing gas mixture

OPTICAL FILTER AND SPECTROMETER

HYPERSPECTRAL IMAGING METHOD AND DEVICE

Disclosed are hyperspectral/multiple spectral imaging methods and devices. A method obtains first and second spectral image datasets of a region of interest (ROI). The first spectral image dataset is characterized by a first spectral range and the second spectral image dataset is characterized by a second spectral range. The method then performs a first spectral analysis on the first spectral image dataset and a second spectral analysis on the second spectral image dataset. Afterwards, the method determines one or more spectral signature(s) at a deeper layer of the ROI.

Optical filter, filter system, spectrometer and manufacturing method thereof

MULTISPECTRAL IMAGING SENSOR WITH CROSSTALK LIMITING MEANS

공간적으로 변하는 미세복제된 층을 갖는 광학 필터

... 일례에서, 예시적인 물품은 파장 선택적 필터에 광학적으로 결합되는 공간적으로 변하는 미세복제된 층을 포함할 수 있다. 파장 선택적 필터는 광 입사각-의존적 광학 대역을 가질 수 있다. 공간적으로 변하는 미세복제된 층은 파장 선택적 필터의 제1 광학 영역으로 제1 미리결정된 입사각으로 그리고 파장 선택적 필터의 제2 광학 영역으로 제2 미리결정된 입사각으로 광을 투과시키도록 구성될 수 있다.

Electronic devices with ambient light sensors

Multi-layer spectral modulation spectrometer

A system includes a first spectral modulator, a second spectral modulator, a light guide optically, a photodetector, and an electronic control device. The first spectral modulator receives sample light, and modulates the sample light according to a first spectral response pattern to produce first modulated light. The second spectral modulator receives the first modulated light from the first spectral modulator via the light guide, modulates the first modulated light according to a second spectral response pattern to produce second modulated light, and transmits the second modulated light to the photodetector. The photodetector measures an intensity of the second modulated light incident on the photodetector, and generates one or more signals corresponding to the intensity of the second modulated light. The electronic control device determines a spectral distribution of the sample light based on the one or more signals.

AIR SAC FOR OSCILLATING LOW AIR LOSS BED

An air sac (58) for use on a low air loss bed (10). The air sac (58) is provided with a releasable connector for retaining the air sac (58) to the low air loss bed (10) and with a nipple (23) for receiving air from a gas supply source to inflate the air sac (58). The air sac (58) is also provided with a cutout (324) which allows the patient (348) to be rolled toward one end of the air sac (58) when the air sac (58) is inflated. A pillar (326) is provided on the end of the air sac (58) toward which the patient (348) is rolled when the air sac (58) is inflated to retain the patient (348) on the air sac (58). The air sacs are arranged in sets with every other sac (58) mounted to the frame (12) of the low air loss bed (10) in alternating arrangement whereby the patient is rolled first in one direction when the air sacs (58) of one set are inflated and then back in the other direction when the air sacs (58) in the first set are deflated and the air sacs (58) in the second set are inflated.

SPECTROPHOTOMETER

An improved spectrophotometer, especially suitable for use in centrifugal analysis instrumentation, is disclosed. The spectrophotometer is improved by including therein a detector comprising a photodiode array assembly having a photodiode array, a spectral filter assembly situated substantially parallel thereto and in the path of incident light and means for attenuating stray light which would otherwise impinge on each of the photodiodes of the array.

A METHOD FOR DETERMINING A SPATIAL LIGHT DISTRIBUTION IN AN ENVIRONMENT

The present invention relates to a method determining a spatial light distribution in an environment. The method comprising: acquiring (602) a spatially resolved light data set (100) by collecting light from the environment (202) using a camera, wherein the light data set (100) comprises a plurality of data elements of a first type (106), each data element of the first type (106) being associated with a vertical angle span and a horizontal angle span, wherein the vertical angle span and the horizontal angle span pertain to angles from which light from the environment (202) is incident on the camera, and each data element of the first type (106) comprising data pertaining to an amount of incident light within a first spectral range; and determining (604), based on the light data set (100), a vertical spatial distribution (122) of the light within the first spectral range. The measuremnet is taken with a RGB camera and the pixel intensities of row are summed up and averaged.

INTEGRATED CIRCUIT FOR SPECTRAL IMAGING SYSTEM

An integrated circuit for an imaging system has an array of optical sensors (40), and an array of optical filters (10) each configured to pass a band of wavelengths onto one or more of the sensors, the array of optical filters being integrated with the array of sensors, and the integrated circuit also having read out circuitry (30) to read out pixel values from the array of sensors to represent an image, different ones of the optical filters being configured to have a different thickness, to pass different bands of wavelengths by means of interference, to allow detection of a spectrum of wavelengths. The read out circuitry can enable multiple pixels under one optical filter to be read out in parallel. The thicknesses may vary non monotonically across the array. The read out, or later image processing, may involve selection or interpolation between wavelengths, to carry out spectral sampling or shifting, to compensate for thickness errors.

DEVICE AND METHOD FOR OBSERVING PARTICLES, IN PARTICULAR SUBMICRON PARTICLES

SPECTRUM-INSPECTION DEVICE

Multi-point spectral system

A multi-point spectral system, comprising: an image sensing device, an imaging lens and a multi-wavelength filter. The multi-wavelength filter has a plurality of filter regions with different transmission wavelength. Combination of the multi-wavelength filter and color filters of the image sensing device can produce a plurality of images with multi-narrowband wavelengths.

SPECTROSCOPIC OPTICAL SYSTEM, SPECTROSCOPIC MEASUREMENT DEVICE

Provided is technology with which the effect of non-sensitive areas can be mitigated and information about light wavelength distribution can be obtained. This spectroscopic optical system comprises a light guiding part, an optical projection system, a filter part, a light receiving part and a switching part. The light guiding part emits light with a plurality of wavelengths. The optical projection system emits the light with a plurality of wavelengths from the light guiding part as collimated light. The filter part emits the collimated light from the optical projection system as transmitted light, the wavelengths of which are continuously changing in a predetermined direction. The light receiving part comprises a plurality of light receiving elements that receive the transmitted light according to wavelength. The switching part switches, in the predetermined direction, the angle of entry of the collimated light entering the filter part.

Device for determining the concentration of at least one gas component in a breathing gas mixture

A device (1) for determining the concentration of a gas component is configured with a radiation source (30) for radiating (31) light as a light emission in an infrared wavelength range. Two detector arrays (52, 62) with two detector elements (50, 60) are configured suitably for detecting the light emission generated by the radiation source (30) in two detector arrays (52, 62). Two filter elements (51, 61) are associated with the detector elements (50, 60). The two detector elements (50, 60) are oriented in relation to the radiation source, so that a range of overlap (65) is obtained due to the two detector arrays (52, 62). The range of overlap (65) causes attenuations in the propagation of light, which may be due to gas molecules or moisture (400). The attenuations in the propagation of light affect both detector elements (50, 60) and are compensated concerning the determination of the concentration.

Multispectral imaging based on computational imaging and a narrow-band absorptive filter array

Multispectral imaging systems are disclosed. An exemplary multispectral imager includes a narrow-band absorptive filter array and a sensor array comprising a plurality of pixels. The narrow-band absorptive filter array has a plurality of filter elements, each filter element being associated with a pixel of the sensor array. The filter elements are organized into groups of N filter elements, where N is greater than three. Each filter element absorbs one narrow band and transmits N−1 narrow bands. The group of N filter elements absorbs all N narrow bands.

Spectroscopic overlay metrology

A spectroscopic overlay metrology system and corresponding spectroscopic overlay metrology methods are disclosed herein for improving overly measurement accuracy, optimizing overlay recipes, and/or minimizing (or eliminating) asymmetry-induced overly error from overlay measurements. An exemplary method includes generating a diffraction spectrum by an overlay target from incident radiation having more than one wavelength. The diffraction spectrum includes a plurality of positive ordered diffracted beams and a plurality of negative ordered diffracted beams that are separated by wavelength, such that the diffraction spectrum includes more than one wavelength of a positive order and a negative order. The method further includes collecting intensity information associated with the diffraction spectrum generated by the overlay target from the incident radiation, and generating overlay information from the collected intensity information, where the overlay information includes contributions from ...

SPEKTRALFOTOMETER.

OPTICAL FILTER AND SPECTROMETER

An optical assembly is disclosed including two laterally variable bandpass optical filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter For the downstream filter. The lateral displacement may cause a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample.

OPTICAL FILTER AND SPECTROMETER

An optical assembly is disclosed including two laterally variable bandpass optical filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. The lateral displacement may cause a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample.

A spectroscopic sensor

MULTISPECTRAL IMAGING SENSOR PROVIDED WITH MEANS FOR LIMITING THE CROSSTALK

A RECONNAISSANCE SYSTEM AND DEVICE

IMAGE PROCESSING DEVICE, IMAGE PICKUP DEVICE AND IMAGE PROCESSING METHOD

This image processing device includes: an image acquisition unit for obtaining an image captured by means of an image pickup component which includes a first through a third color filters; and a multiband estimation unit that sets a first band (BD1) which corresponds to a non-overlapping part of a first transmittance characteristic (FB), a second band (BD2) which corresponds to an overlapping part of first and second transmittance characteristics (FB, FG), a third band (BD3) which corresponds to a non-overlapping part of the second transmittance characteristic (FG), a fourth band (BD4) which corresponds to an overlapping part of second and third transmittance characteristics (FG, FR), and a fifth band (BD5) which corresponds to a non-overlapping part of the third transmittance characteristic (FR), and estimates component values (b(1), b(2), g, r(1), r(2)) of the first through the fifth bands (BD1 - BD5) on the basis of pixels values of the first through the third colors.

COLOR FILTER MODULES FOR PLENOPTIC XYZ IMAGING SYSTEMS

A method for designing a color filter module used in a plenoptic XYZ imaging system. In one approach, the color filter module is spatially partitioned into filter cells, and the spatial partition is designed by considering data captured at the sensor in light of variations in E.

Single-sensor hyperspectral imaging device

The present disclosure generally relates to hyperspectral spectroscopy, and in particular, to systems, methods and devices enabling a single-sensor hyperspectral imaging device. Hyperspectral (also known as “multispectral”) spectroscopy is an imaging technique that integrates multiples images of an object resolved at different narrow spectral bands (i.e., narrow ranges of wavelengths) into a single data structure, referred to as a three-dimensional hyperspectral data cube. Data provided by hyperspectral spectroscopy allow for the identification of individual components of a complex composition through the recognition of spectral signatures of individual components within the three-dimensional hyperspectral data cube.

Sensoranordnung, Verfahren zur Berechnung eines Farbbildes und eines hyperspektralen Bildes, Verfahren zur Durchführung eines Weißabgleichs und Verwendung der Sensoranordnung in der medizinischen Bildgebung

Die Erfindung betrifft eine Sensoranordnung (1) zur Aufnahme eines Farbbildes im sichtbaren Spektrum (8) und einer hyperspektralen Information, die mit dem Farbbild räumlich verknüpft ist, wobei die Sensoranordnung (1) einen Bildsensor (2) aus mehreren Fotozellen (3) aufweist, wobei wenigstes einem Teil der Fotozellen (3) jeweils ein Farbfilter (4) fest zugeordnet ist, wobei jede Fotozelle (3) einer Subzelle (5) und jede Subzelle (5) einer Superzellen (6) zugeordnet ist, wobei jede Subzelle (5) wenigstens einen Einzelfilter eines Kanals aufweist, wobei alle Kanäle zusammen wenigstens das gesamte sichtbare Spektrum (8) abdecken, dass sich die charakteristischen Wellenlängen (9) der zu einem Kanal gehörenden Einzelfilter zwischen den Subzellen (5) einer Superzelle (6) voneinander jeweils unterscheiden.

System zur Messung des Vorhandenseins und/oder der Konzentration einer in Körperflüssigkeit gelösten Analysesubstanz

Die Erfindung betrifft ein System (10) zur, insbesondere transdermalen, Messung des Vorhandenseins und/oder der Konzentration einer in einer Körperflüssigkeit gelösten Analysesubstanz, mit einer Lichtquelle (12) zur Abgabe von Anregungslicht (14), mit einer Optikeinrichtung (16), welche für das Anregungslicht einen Anregungsstrahlengang (22) von der Lichtquelle zu einem Messbereich (18) einer Probe (20) definiert und welche für Streulicht (24) aus dem Messbereich der Probe einen Detektionsstrahlengang (28) von dem Messbereich der Probe zu einer Detektionseinrichtung (26) definiert, und mit einer Detektionseinrichtung (26) zur Detektion des Streulichts. Die Detektionseinrichtung weist einen lichtempfindlichen Sensor (40) und wenigstens ein im Detektionsstrahlengang angeordnetes Filterelement (48) auf, wobei das wenigstens eine Filterelement dazu ausgebildet ist, eine Transmission von Licht mit Wellenlängen außerhalb eines (jeweiligen) Analysen-Wellenlängenbereichs um eine (jeweilige) zu ...

Optical detector

SENSOR DEVICE AND METHODS OF USE

A multispectral sensor device may include a sensor array comprising a plurality of channels and one or more processors to determine that a time-sensitive measurement is to be performed, wherein the time-sensitive measurement is to be performed using data collected by one or more channels of the plurality of channels; cause the data to be collected by a proper subset of channels, of the plurality of channels, wherein the proper subset of channels includes the one or more channels; and determine the time-sensitive measurement based on the data.

OPTICAL SENSOR AND ELECTRONIC DEVICE

MULTI-CHANNEL LIGHT MEASUREMENT METHODS, SYSTEMS, AND APPARATUS HAVING REDUCED SIGNAL-TO-NOISE RATIO

Disclosed is a multi-channel light measurement system adapted to illuminate and measure a test sample in a vessel. The multi-channel light measurement system has at least one photodetector per channel and a variable integrate and hold circuit coupled to each photodetector, the variable integrate and hold circuit allows adjustment of a sampling factor selected from a group of an integration time, a value of capacitance, an area of a discrete photodetector array, or any combination thereof. The system may readily equilibrate reference intensity output for multiple channels. Methods and apparatus are disclosed, as are other aspects.

Solid-state image sensor, and imaging system

A solid-state image sensor and an imaging system with a two-dimensional pixel array, and a plurality of types of filters that are arranged facing a pixel region of the two-dimensional pixel array, the filters each including a spectrum function and a periodic fine pattern shorter than a wavelength to be detected, wherein each of the filters forms a unit which is larger than the photoelectric conversion device of each pixel on the two-dimensional pixel array, where one type of filter is arranged for a plurality of adjacent photoelectric conversion device groups, wherein the plurality of types of filters are arranged for adjacent unit groups to form a filter bank, and wherein the filter banks are arranged in a unit of N×M, where N and M are integers of one or more, facing the pixel region of the two-dimensional pixel array.

OPTICAL FILTER AND SPECTROMETER INCLUDING THE SAME

Provided is an optical filter including a plurality of bandpass filters having center wavelengths of light that are different from one another, wherein each of the plurality of bandpass filters includes a cavity layer, a first Bragg reflective layer provided on an upper surface of the cavity layer, and a second Bragg reflective layer provided on a lower surface of the cavity layer opposite to the upper surface, wherein the cavity layer has a thickness greater than A/n, where A is a center wavelength of light of each of the bandpass filters and n is an effective refractive index of the cavity layer, and wherein each of the first Bragg reflective layer and the second Bragg reflective layer includes three or more material layers having different refractive indices from one another.

WINDOW OBSCURATION SENSORS FOR MOBILE GAS AND CHEMICAL IMAGING CAMERAS

An infrared (IR) imaging system for determining a concentration of a target species in an object is disclosed. The imaging system can include an optical system including a focal plane array (FPA) unit behind an optical window. The optical system can have components defining at least two optical channels thereof, said at least two optical channels being spatially and spectrally different from one another. Each of the at least two optical channels can be positioned to transfer IR radiation incident on the optical system towards the optical FPA. The system can include a processing unit containing a processor that can be configured to acquire multispectral optical data representing said target species from the IR radiation received at the optical FPA. One or more of the optical channels may be used in detecting objects on or near the optical window, to avoid false detections of said target species.

SPECTROMETRY SYSTEM APPLICATIONS

A spectrometer system may be used to determine one or more spectra of an object, and the one or more spectra may be associated with one or more attributes of the object that are relevant to the user. While the spectrometer system can take many forms, in many instances the system comprises a spectrometer and a processing device in communication with the spectrometer and with a remote server, wherein the spectrometer is physically integrated with an apparatus. The apparatus may have a function different than that of the spectrometer, such as a consumer appliance or device.

Spectrophotometer for accurately measuring light intensity in a specific wavelength region

A spectrophotometer utilizes a band-phase filter array for splitting incident light into a plurality of light components of different wavelengths, a plurality of silicon photodiodes for receiving the respective light components, and a memory for storing spectral sensitivity information. The spectral sensitivity information is obtained by integrating the spectral sensitivities of spectrodetectors relative to each sectionalized wavelength regions sectionally generated from a measurement wavelength region. Each of the spectrodetectors include a band-pass filter array and a silicon photodiode in combination. A central processing unit calculates simultaneous equations representing the relation between the output from each of the silicon photodiodes, the spectral sensitivity information stored in memory and the light intensity of the sectionalized wavelength region, to obtain the light intensity.

MULTI-SPECTRAL OPTICAL SENSOR AND SYSTEM

A monolithic semiconductor chip defines a plurality of subarrays of optical detector regions, wherein each subarray of optical detector regions includes a corresponding plurality of optical detector regions and wherein each subarray of optical detector regions has the same relative spatial arrangement of optical detector regions as each of the other subarrays of optical detector regions. A multi-spectral optical sensor comprises the monolithic semiconductor chip, a plurality of optical filters, and a plurality of lens elements, wherein each optical filter is aligned between a corresponding lens element and a corresponding subarray of optical detector regions such that light which is incident on any one of the lens elements along a direction of incidence converges through the corresponding optical filter onto a corresponding one of the optical detector regions of the corresponding subarray of optical detector regions, which corresponding one of the optical detector regions depends on the ...

Vorrichtung zur Konzentrationsbestimmung mindestens einer Gaskomponente in einem Atemgasgemisch

Eine Vorrichtung (1) zur Konzentrationsbestimmung einer Gaskomponente ist mit einer Strahlungsquelle (30) zu einer Abstrahlung (31) einer Lichtabstrahlung in einem infraroten Wellenlängenbereich, zwei Detektoranordnungen (52, 62) mit zwei zu einer Erfassung der von der Strahlungsquelle (30) erzeugten Lichtabstrahlung in zwei Detektoranordnungen (52, 62) geeignet ausgebildeten Detektorelementen (50, 60) und zwei den Detektorelementen (50, 60) zugeordneten Filterelementen (51, 61) ausgestaltet. Die zwei Detektorelemente (50, 60) sind in Bezug zur Strahlungsquelle ausgerichtet, so dass sich bedingt durch die zwei Detektoranordnungen (52, 62) ein Überlappungsbereich (65) ergibt. Der Überlappungsbereich (65) bewirkt, dass Dämpfungen in der Lichtausbreitung, welche beispielsweise durch Gasmoleküle oder Feuchtigkeit (400) bedingt sein können sich auf beide Detektorelemente (50, 60) auswirken und damit hinsichtlich der Konzentrationsbestimmung kompensiert sind.

Multispectral image sensor

A multispectral image sensor, and a method of use, is provided. The multispectral image sensor has a broadband image sensor, 102, and a spectral filter, 103. The broadband image sensor has a plurality of pixels, 104, arranged in an array and the broadband image sensor has a plurality of filter elements, 105 & 106, arranged in an array. Each of the filter elements is coupled with one of more pixels. Each filter element has a passband in a receivable wavelength range of the broadband image sensor. Each filter element has a film with a negative value of permittivity in the passband of the filter element. The film has a plurality of holes (Figure 1b, 107), each hole having a dielectric material. The passband of at least two of the filter elements are different. Each filter element may be tuned to have a single passband in the receivable wavelength range of the broadband image sensor and the passbands of different filter elements may differ by one or more octaves.

A method for determining a spatial light distribution in an environment

The present invention relates to a method determining a spatial light distribution in an environment. The method comprising: acquiring (602) a spatially resolved light data set (100) by collecting light from the environment (202) using a camera, wherein the light data set (100) comprises a plurality of data elements of a first type (106), each data element of the first type (106) being associated with a vertical angle span and a horizontal angle span, wherein the vertical angle span and the horizontal angle span pertain to angles from which light from the environment (202) is incident on the camera, and each data element of the first type (106) comprising data pertaining to an amount of incident light within a first spectral range; and determining (604), based on the light data set (100), a vertical spatial distribution (122) of the light within the first spectral range. The measuremnet is taken with a RGB camera and the pixel intensities of row are summed up and averaged.

ON-BOARD OPTICAL OBSERVATION INSTRUMENT OF VARIABLE SPATIAL AND SPECTRAL RESOLUTION

ABSTRACT The invention relates to an optical observation instrument intended to be installed on-board a satellite or an aircraft, said instrument comprising an optical system forming, of an overflown terrain, an image (l) on a photodetection matrix array (M) composed of pixels (Pu) that are organized into rows (Li) and into groups of columns (Cj). Each row of pixels corresponds to various points of the image, each point of a row corresponds to a given spectral band, and each group of columns corresponds to a different spectral band, the movement of the overflown terrain being perpendicular to the rows, the observation instrument comprising a device for acquiring data output from the pixels during a defined sampling period, the acquiring device operating in an acquisition mode defined by the common read-out of identical matrix-array blocks of pixels belonging to adjacent rows and adjacent columns, the numbers of rows and columns of the blocks being chosen depending on an expected spatial resolution and an expected spectral resolution, the observation instrument comprising at least two acquisition modes, a first acquisition mode in which the rows are read out in blocks of pixels and a second acquisition mode in which the columns are read out in blocks of pixels. Date Recue/Date Received 2020-12-15

DYNAMIC HYPER-SPECTRAL IMAGING OF OBJECTS IN APPARENT MOTION

Hyperspectral imaging systems and methods for hyperspectral imaging of scenes in apparent motion are described. Each acquired image includes a spatial map of the scene which facilitates pointing, focusing, and data analysis. The spectral measurement parameters can be configured dynamically in order to optimize performance such as spectral resolution, storage capacity, and transmission bandwidth, without physical or optical reconfiguration of the imaging system, and with no need for moveable mechanical parts. The system achieves high spectral and spatial resolution, is simple, compact, and lightweight, thereby providing an efficient hyperspectral imaging system for aircraft or spaceborne imaging systems.

SPECTROPHOTOMETER

OPTICAL UNIT, OPTICAL SENSOR, MULTICHANNEL OPTICAL SENSING APPARATUS, AND METHOD FOR MANUFACTURING OPTICAL UNIT

An optical unit is composed of transparent blocks (10a-10e) and dichroic films (11a-11d) which are different from one another in the wavelength range of reflectible lights. The transparent blocks (10a-10e) are aligned and joined while having the dichroic films (11a-11d) respectively interposed between adjacent two transparent blocks in such a manner that the dichroic films (11a-11d) are parallel to one another.

LIGHT FILTER AND SPECTROMETER INCLUDING THE LIGHT FILTER

A light filter includes a plurality of spectrum modulation portions, each having a different thicknesses or a different mixing ratio of materials thereof. Each of the plurality of spectrum modulation portions has a different transmittance spectrum.

Pseudo-apposition eye spectral imaging system

A spectral imaging system comprises a plurality of spectral units arranged in an array, each spectral unit of the plurality of spectral units comprising: a microlens having an optical axis; a spectral filter having a center wavelength and aligned with the optical axis; a fiber optic bundle, the fiber optic bundle having a curved light receiving surface and a planar light output surface, wherein the curved light receiving surface is aligned with the optical axis; and a plurality of pixel sensors configured to receive light from the planar light output surface of the fiber optic taper portion.

Spectrometry system with visible aiming beam

A handheld spectrometer can be configured with a visible aiming beam to allow the user to determine the measured region of the object. When the visible aiming beam comprises the spectrometer measurement beam, the spectrometer measurement beam comprises sufficient energy for the user to see the measurement beam illuminating the object. When the visible aiming beam comprises a separate beam, the visible aiming beam comprises sufficient energy for the user to see a portion of the aiming beam reflected from the object. The visible aiming beam and measurement beam can be arranged to at least partially overlap on the sample, such that the user has an indication of the area of the sample being measured.

TRACE MICROANALYSIS MICROSCOPE SYSTEMS AND METHODS

Laserbearbeitungssystem zum Durchführen eines Bearbeitungsprozesses an einem Werkstück mittels eines Laserstrahls und Verfahren zur Überwachung eines Bearbeitungsprozesses an einem Werkstück mittels eines Laserstrahls

Es ist ein Laserbearbeitungssystem zum Durchführen eines Bearbeitungsprozesses an einem Werkstück mittels eines Laserstrahls angegeben, das Laserbearbeitungssystem umfassend: einen Laserbearbeitungskopf zum Einstrahlen eines Laserstrahls in einen Bearbeitungsbereich auf dem Werkstück; und eine Sensoreinheit zur Überwachung des Bearbeitungsprozesses mit zumindest einem Hyperspektralsensor, wobei die Sensoreinheit eingerichtet ist, ein Hyperspektralbild mit N mal M Pixeln von einem Bereich des Werkstücks zu erfassen, wobei das Hyperspektralbild zwei räumliche Dimensionen x und y sowie eine spektrale Dimension λ aufweist und wobei N eine Anzahl von Pixeln in der ersten räumlichen Dimension x, M eine Anzahl von Pixeln in der zweiten räumlichen Dimension y, und L die Anzahl von Spektralbändern in der spektralen Dimension λ des Hyperspektralbildes angeben, wobei M, N und L natürliche Zahlen sind. Ferner ist ein Verfahren zur Überwachung eines Bearbeitungsprozesses an einem Werkstück mittels eines ...

Device for measuring inhomogeneous optical radiation, and method of measurement

The device for colour measurement (colorimetry) operates in accordance with the three-range method on the basis of partial filtering. Each of the individual partial filtering arrangements (2) is assigned its own individual receiver (1). Each individual receiver (1) is assigned, in turn, its own individual amplifier (7), with the result that each measured signal can also be detected individually. The input resistances of the amplifiers (7) which operate in a sample-and-hold circuit are tuned such that the output signal is linearly proportional to the receiver current in the short circuit. In order to measure temporally variable light, the time constant of the amplifiers (7) can be adjusted such that their output voltages are proportional to the arithmetic mean of the light inside a stipulated period. The instantaneous values of all the signal currents are applied simultaneously to all the amplifier outputs and are transmitted serially by means of an external measuring-circuit selector (measuring-point ...

FABRICATING A SENSOR DEVICE

According to an example, a first mirror layer may be formed on a substrate. A first set of spacer layers may be deposited on the first mirror layer to be positioned above a first group of the sensing elements and a second set of spacer layers may be deposited on the first mirror layer to be positioned above a second group of the sensing elements, in which the second set of spacer layers differs from the first set. In addition, a second mirror layer may be formed above the deposited first set of spacer layers and the deposited second set of spacer layers.

SINGLE-SENSOR HYPERSPECTRAL IMAGING DEVICE

A hyperspectral imaging device comprising a photo-sensor array including a plurality of photo-sensors, each providing a respective output, is provided. The device comprises a spectral filter array having a plurality of filter elements, each filter element arranged to filter light received by a respective one or more of the photo-sensors. Each filter element is one of a plurality of filter-types. Each filter-type characterized by a unique spectral pass-band. The device comprises an interface module to select a plurality of subsets of photo-sensor outputs. Each such subset is associated with a single respective filter-type. The device comprises a control module that generates a hyperspectral data cube from the subsets of photo-sensor outputs by generating a plurality of images. Each such image is produced from a single corresponding subset of photo-sensor outputs in the plurality of photo-sensor outputs and so is associated with a corresponding filter-type in the plurality of filter-types ...

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 sensor modules and spectrometers including an optical grating structure

화상촬영장치 및 화상촬영방법

... 본원은 피사체에 반사된 적외선 또는 피사체가 방사하는 적외선 등에서 피사체의 컬러 화상을 형성하는 것이 가능토록 하는 화상촬영장치 및 화상촬영방법 등에 관한 것이다. 본원에서 제공되는 화상촬영장치의 일 적용예는 조사부, 촬상부 및 표색설정부 등 등을 갖추고 조사부는 다른 파장강도분포를 가지는 적외선을 피사체에 조사하고 촬상부는 피사체에 의해 반사된 다른 파장강도를 갖는 각각의 적외선에 의한 피사체의 화상을 촬상하여 각각의 화상을 나타내는 화상정보를 형성하며 표색설정부는 형성된 화상정보가 나타내는 화상의 각각을 다른 단색에 의해 표색하기 위한 표색정보를 화상정보에 설정하는 수단을 포함하여 제공되는 화상촬영장치로 구현될 수 있다. 또한, 본원에서 제공되는 화상촬영방법의 일 적용예는 피사체로부터의 적외선을 다른 파장강도분포를 갖는 적외선으로 분리하여 다른 파장강도분포를 갖는 각각의 적외선에 의해 피사체의 화상을 촬상하여 각각의 화상을 나타내는 화상정보를 형성하고 형성된 화상정보가 나타내는 각각을 다른 단색에 의해 표색할 수 있는 화상촬영방법로 구현될 수 있는 기술사상의 발명이다.

Light sensor modules and spectrometers including an optical grating structure

Dielectric mirror based multispectral filter array

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.

Filter array, spectral detector including the filter array and spectrometer employing the spectral detector

Provided are a filter array, a spectral detector including the filter array, and a spectrometer employing the spectral detector. The filter array may have a multi-array structure including a plurality of filter arrays. The filter array may include a first filter array having a first structure in which a plurality of first filters with different transmittance spectrums are arranged, and a second filter array having a second structure in which a plurality of second filters with different transmittance spectrums are arranged, the second filter array being arranged to at least partially overlap the first filter array at a first position relative to the first filter array so that the multi-arrangement type filter array has a first set of absorbance characteristics. The second filter array may be configurable to be arranged to at least partially overlap the first filter array at a second position relative to the first filter array so that the multi-arrangement type filter array has a second set ...

System and method for visible and infrared high dynamic range sensing

A high dynamic range sensing device is disclosed. The device includes an array of Bayer pattern units. Each of the Bayer pattern units comprises a plurality of pixels and each of the plurality of pixels comprises a plurality of photodiodes. At least one of the plurality of photodiodes in each pixel is configured to detect near infrared (NIR) light and at least one of the plurality of photodiodes in each of the plurality of pixels is configured to detect visible light.

Solid-state image sensor, and imaging system

The present technology relates to solid-state image sensor and an imaging system which are capable of providing a solid-state image sensor and an imaging system which are capable of realizing a spectroscopic/imaging device for visible/near-infrared light having a high sensitivity and high wavelength resolution, and of achieving two-dimensional spectrum mapping with high spatial resolution. There are provided a two-dimensional pixel array, and a plurality of types of filters that are arranged facing a pixel region of the two-dimensional pixel array, the filters each including a spectrum function and a periodic fine pattern shorter than a wavelength to be detected, wherein each of the filters forms a unit which is larger than the photoelectric conversion device of each pixel on the two-dimensional pixel array, where one type of filter is arranged for a plurality of adjacent photoelectric conversion device groups, wherein the plurality of types of filters are arranged for adjacent unit groups ...

Silicon germanium imager with photodiode in trench

An optical apparatus that includes: a semiconductor substrate formed from a first material, the semiconductor substrate including a first n-doped region; and a photodiode supported by the semiconductor substrate, the photodiode including an absorption region configured to absorb photons and to generate photo-carriers from the absorbed photons, the absorption region being formed from a second material different than the first material and including: a first p-doped region; and a second n-doped region coupled to the first n-doped region, wherein a second doping concentration of the second n-doped region is less than or substantially equal to a first doping concentration of the first n-doped region.

Spectrophotometer

MULTISPECTRAL IMAGING SENSOR PROVIDED WITH MEANS FOR LIMITING CROSSTALK

BIOSENSOR PLATFORM AND METHOD FOR THE SIMULTANEOUS, MULTIPLEXED, ULTRA-SENSITIVE AND HIGH THROUGHPUT OPTICAL DETECTION OF BIOMARKERS

Biosensing platform for simultaneous, multiplexed, high throughput and ultra-sensitive optical detection of biomarkers labelled with plasmonic nanoparticles, the platform being provided with a biosensor, a broadband and continuous spectrum illumination source, an optical detector for simultaneously capturing spatially resolved and spectrally resolved the scattering signal of each individual nanoparticle, an autofocus system and an optical system adapted to collect the scattered signal of the biosensor's surface onto the optical detector, the platform being provided with translation means for the optical system and/or the biosensor, such that the optical system and the biosensor can be displaced relative to each other in the three dimensions, and wherein the processing means are adapted to: i) simultaneously capture spatially and spectrally resolved scattering signals from each nanoparticle individually, and ii) to analyze these signals simultaneously with the capture process.

MULTISPECTRAL IMAGING SENSOR PROVIDED WITH MEANS FOR LIMITING CROSSTALK

Capteur d'imagerie multispectrale hybride, caractérisé en ce qu'il comporte un détecteur (DET) photosensible à illumination face arrière réalisé sur un substrat (100) en InP et formé d'une matrice de pixels (105, P1, P2, P3) euxmêmes réalisés dans une structure à base d'InGaAs (103), un module de filtrage (MF) formé d'une matrice de filtres élémentaires (?1, ?2, ?3) répliquant cette matrice de pixels et rapporté au contact dudit substrat (100), ledit substrat (100) en InP présentant une épaisseur inférieure à 50 µm, de préférence inférieure à 30 µm.

MULTISPECTRAL IMAGING DEVICE

L'invention concerne un dispositif d'imagerie multispectrale comportant : - un détecteur DET photosensible formé d'une matrice de pixels, - un réseau de microlentilles ML1, ML2, ML3 répliquant cette matrice de pixels, - un module de filtrage MF formé d'une matrice de filtres élémentaires ?1, ?2, ?3 répliquant cette matrice de pixels, Le dispositif est remarquable en ce que le réseau de microlentilles étant agencé directement au contact du détecteur DET, le module de filtrage MF est réalisé sur un substrat SS qui est rapporté au contact du réseau de microlentilles.

DIELECTRIC MIRROR BASED MULTISPECTRAL FILTER ARRAY

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

FOURIER TRANSFORM INFRARED SPECTROMETER WITH ENHANCED READOUT SPEED

A Fourier transform infrared spectrometer includes a beam splitter (22), end mirrors (21, 23), one of which is scanned, and detectors (32) detecting the interfered light at the two outputs of a beam combiner (25), which is the same optical element as the beam splitter (22). Time records of detector samples are transformed by Fourier transform to obtain the corresponding spectra. The detectors (32) are sampled alternately in time and the samples subsequently interleaved to provide an increased effective sampling rate. The detectors (32) may be masked by color filter mosaics so that each pixel of each detector is sensitive only to one color of light, and the spectra obtained from pixels detecting different colors may be concatenated.

GEOSTATIONARY EARTH ORBIT (GEO) EARTH MULTISPECTRAL MAPPER (GEMM)

A multi-spectral imager useful for weather mapping, comprising an array of filters on at least one focal plane array (FPA) including pixels. Each of the filters are associated with a different set of the pixels, and each of the filters transmit a portion of electromagnetic radiation, comprising a different band of wavelengths, to the set of the pixels associated with the filter. A circuit connected to the pixels reads out a signal outputted from each of a plurality of different pixels in the set and outputs the signals to an adder. The adder sums the signals from each of the plurality of different pixels in the set to form a sum used for generating a weather map. 1. A method of mapping a weather condition , comprising: the electromagnetic radiation comprises different bands of wavelengths,', 'the imager includes an array of filters on at least one focal plane array (FPA) including pixels, and', 'each of the filters are associated with a different set of the pixels; and, '(a) collecting electromagnetic radiation on an imager, wherein (1) each of the filters transmitting a portion of the electromagnetic radiation, comprising a different one of the bands of wavelengths, to the set of the pixels associated with the filter, and', (i) irradiating each of a plurality of different pixels in the set with the portion of electromagnetic radiation comprising the band of wavelengths transmitted by the filter associated with the set;', '(ii) reading out a signal outputted from each of the plurality of different pixels in the set, in response to the irradiating; and', '(iii) summing the signals from each of the plurality of different pixels in the set, forming a sum used for mapping the weather condition., '(2) for each of the sets], '(b) scanning the electromagnetic radiation across each of the filters in turn, wherein the scanning comprises2. The method of claim 1 , further comprising collecting the electromagnetic radiation from different spatial positions in a field of view ...

TERAHERTZ TIME-DOMAIN SPECTROSCOPY SYSTEM

The present application relates to a terahertz time-domain spectroscopy system. In this terahertz time-domain spectroscopy system, the femtosecond laser light radiated by the femtosecond laser is collimated by a first diaphragm, and then is split by a beam splitter into a pump light and a probe light. The pump light passes through the first light path module to generate a terahertz pulse, and the probe light passes through the first light path module to generate a linear polarization probe light having the same optical distance as that of the pump light. The linear polarization probe light and the terahertz pulse are combined by a beam combiner to obtain a light beam to be detected carrying the terahertz pulse information. Two electro-optical crystals with the same thickness are used in a detection device simultaneously. Changing the crystal axis angle of the two electro-optical crystals, there is a phase compensation to the two components o light and e light of the probe light, so as to ...

Imaging device

Provided is an imaging device (1) having: a front optical system (10) that transmits light from an object; a spectral filter array (20) that transmits light from the front optical system (10) via a plurality of spectral filters; a small lens array (30) that transmits the light from the plurality of spectral filters via a plurality of small lenses respectively, and forms a plurality of object images; a picture element (50) that captures the plurality of object images respectively; and an image processor (60) that determines two-dimensional spectral information on the object images based on image signals output from the picture element (50). The front optical system (10) is configured to transmit the light from the focused object to collimate the light into a parallel luminous flux.

OPTICAL SENSOR AND ELECTRONIC DEVICE

An optical sensor includes a light receiving unit and a calculating unit. The light receiving unit includes a plurality of light receiving elements and a plurality of color filters. The plurality of light receiving elements include a first light receiving element and a second light receiving element through which a photocurrent flows when receiving light. The plurality of color filters include a yellow filter that covers a light receiving surface of the first light receiving element and a red filter that covers a light receiving surface of the second light receiving element. The calculating unit calculates an intensity of a yellow wavelength band based on a difference between a first output signal obtained from the photocurrent of the first light receiving element and a second output signal obtained from the photocurrent of the second light receiving element.

SEMICONDUCTOR LIGHT SOURCE, OPERATING METHOD AND SPECTROMETER

A semiconductor light source configured for a spectrometer may include at least one multipixel chip, at least one color setting component disposed optically downstream of at least one of emission region, and a drive unit. The color setting component may be configured for altering a spectral emission behavior of assigned emission regions. The drive unit may be configured to operate a plurality of mutually independently drivable emission regions successively, such that during operation thereof at least three spectrally narrowband individual spectra are emitted successively by the plurality of mutually independently drivable emission regions together with the associated color setting component from which individual spectra a total spectrum emitted by the semiconductor light source is constituted.

SPECTROSCOPIC SENSOR

A spectroscopic sensor 1 comprises an interference filter unit 20, having a cavity layer 21 and first and second mirror layers 22, 23 opposing each other through the cavity layer 21, for selectively transmitting therethrough light in a predetermined wavelength range according to an incident position thereof; a light-transmitting substrate 3, arranged on the first mirror layer 22 side, for transmitting therethrough light incident on the interference filter unit 20; a light-detecting substrate 4, arranged on the second mirror layer 23 side, for detecting the light transmitted through the interference filter unit 20; and a first coupling layer 11 arranged between the interference filter unit 20 and the light-transmitting substrate 3. The cavity layer 21 and the first coupling layer 11 are silicon oxide films.

SYSTEMS AND METHODS FOR MULTISPECTRAL IMAGING AND GAS DETECTION USING A SCANNING ILLUMINATOR AND OPTICAL SENSOR

Presented herein are systems and methods directed to a multispectral absorption-based imaging approach that provides for rapid and accurate detection, localization, and quantification of gas leaks. The imaging technology described herein utilizes a scanning optical sensor in combination with structured and scannable illumination to detect and image spectral signatures produced by absorption of light by leaking gas in a quantitative manner over wide areas, at distance, and in the presence of background such as ambient gas and vapor. Moreover, the specifically structured and scannable illumination source of the systems and methods described herein provides a consistent source of illumination for the scanning optical sensor, allowing imaging to be performed even in the absence of sufficient natural light, such as sunlight. The imaging approaches described herein can, accordingly, be used for a variety of gas leak detection, emissions monitoring, and safety applications.

Polarizers for image sensor devices

The present disclosure is directed to a method of forming a polarization grating structure (e.g., polarizer) as part of a grid structure of a back side illuminated image sensor device. For example, the method includes forming a layer stack over a semiconductor layer with radiation-sensing regions. Further, the method includes forming grating elements of one or more polarization grating structures within a grid structure, where forming the grating elements includes (i) etching the layer stack to form the grid structure and (ii) etching the layer stack to form grating elements oriented to a polarization angle.

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 FILTER AND SPECTROMETER

An optical assembly is disclosed including two laterally variable bandpass optical filters slacked at a fixed distance from each other, so that the upstream filter functions as a spatial filler for the downstream filter. The lateral displacement may cause a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample. 132-. (canceled)33. An optical assembly comprising: the two-dimensional array of bandpass optical filter segments including two or more one-dimensional arrays arranged side by side in a first direction, and', 'each of the two or more one-dimensional arrays being arranged side by side in a second, different direction and having a transmission center wavelength that is unique to the two-dimensional array., 'a filter comprising a two-dimensional array of bandpass optical filter segments,'}34. The optical assembly of claim 33 , further comprising: 'the first end being configured for contacting or inserting into a sample, thereby collecting signal light that emanates from the sample.', 'a relay lightpipe that extends between a first end and a second end,'}35. The optical assembly of claim 34 , wherein the relay lightpipe is further configured for unconstrained propagation of the signal light from the first end to the second end.36. The optical assembly of claim 34 , wherein the relay lightpipe comprises mirrored internal walls.37. The optical assembly of claim 34 , wherein the first end comprises a slanted optical surface.38. The optical assembly of claim 33 , further comprising:a different filter comprising a different two-dimensional array of bandpass optical filter segments.39. The optical assembly of claim 33 , further comprising:a grid that ...

SPECTROMETRY SYSTEM WITH VISIBLE AIMING BEAM

A handheld spectrometer can be configured with a visible aiming beam to allow the user to determine the measured region of the object. When the visible aiming beam comprises the spectrometer measurement beam, the spectrometer measurement beam comprises sufficient energy for the user to see the measurement beam illuminating the object. When the visible aiming beam comprises a separate beam, the visible aiming beam comprises sufficient energy for the user to see a portion of the aiming beam reflected from the object. The visible aiming beam and measurement beam can be arranged to at least partially overlap on the sample, such that the user has an indication of the area of the sample being measured. 1. (canceled)2. An apparatus to measure spectra of a sample , comprising:a sensor comprising a detector and having a field of view to measure the spectra of the sample within the field of view; anda light source configured to direct an optical beam to the sample within the field of view,wherein the optical beam comprises an aiming beam and a measurement beam,wherein the optical beam is configured to illuminate an area of the sample at least partially within the field of view of the detector, andwherein the field of view of the detector is different than the area of the sample illuminated by the optical beam such that the spectra of the sample are defined by at most a portion of the area of the sample within the detector's field of view.3. The apparatus of claim 2 , wherein the aiming beam is configured to reflect from the sample to be visible to a user of the apparatus.4. The apparatus of claim 2 , wherein the aiming beam and the measurement beam are configured to overlap on the sample.5. The apparatus of claim 2 , wherein the aiming beam and the measurement beam are configured to illuminate substantially similar areas of the sample.6. The apparatus of claim 2 , wherein the aiming beam and the measurement beam comprise offset optical axes claim 2 , and wherein the aiming ...

MULTISPECTRAL SENSOR RESPONSE BALANCING

An optical filter may include a substrate. The optical filter may include a first mirror. The optical filter may include a second mirror. The optical filter may include a spacer. The first mirror, the second mirror, and the spacer may form a plurality of component filters. A first component filter, of the plurality of component filters, may be associated with a first cross-sectional area and a second component filter, of the plurality of component filters, is associated with a second cross-sectional area. The first cross-sectional area and the second cross-sectional area may be configured to response balance the first component filter and the second component filter. 1. An optical filter , comprising:a first component filter associated with a first wavelength of light that is directed to a first sensor element aligned to the first component filter; and wherein the first wavelength of light is different from the second wavelength of light, and', 'wherein the first wavelength of light and the second wavelength of light response balance different sensor elements that include the first sensor element and the second sensor element., 'a second component filter associated with a second wavelength of light that is directed to a second sensor element aligned to the second component filter,'}2. The optical filter of claim 1 , wherein a first size of the first component filter is different from a second size of the second component filter.3. The optical filter of claim 2 ,wherein the first size of the first component filter is a first cross-sectional area of the first component filter, andwherein the second size of the second component filter is a second cross-sectional area of the second component filter.4. The optical filter of claim 1 , further comprising:a third component filter associated with the first wavelength of light.5. The optical filter of claim 4 , wherein a first size of the first component filter is different from a second size of the third component filter.6. ...

GENERATING NARROW-BAND SPECTRAL IMAGES FROM BROAD-BAND SPECTRAL IMAGES

System and method for narrowing the transmission curves obtained using a spectral imager in which spectral images are acquired using a MEMS Fabri-Perot (FP) tunable filter. A method includes acquiring a first plurality of broad-band spectral images associated with respective MEMS FP etalon states and processing the first plurality of broad-band spectral images into a second plurality of narrow-band spectral images. 1. A method for generating narrow-band spectral images , the method comprising:acquiring, by a spectral imager that comprises a tunable filter, a first plurality (N) of broad-band spectral images associated with respective states of the tunable filter; andprocessing, by a hardware processor, the first plurality of broad-band spectral images into a second plurality (M) of narrow-band spectral images.2. The method according to wherein each broad-band image of the first plurality of broad-band spectral images is associated with a respective broad-band transmission curve having a respective broad-band full width half maximum value; andwherein each narrow-band spectral image of the second plurality of narrow-band spectral images is associated with a respective narrow-band transmission curve having a narrow-band full width half maximum smaller than the broad-band full width half maximum value of the broad-band transmission curve.3. The method of claim 2 , wherein the spectral imager includes an image sensor having a filter array with a third plurality (C) of filter types claim 2 , wherein filters of different types differ from each other by transfer function; and wherein C exceeds two.4. The method of claim 3 , wherein C equals three and the filter array is a color filter array.5. The method of claim 3 , wherein C equals three and the filter array is a red claim 3 , green and blue color filter array.6. The method of claim 3 , wherein C equals four and the filter array is a red claim 3 , green claim 3 , blue and infrared filter array.7. The method of claim 3 , ...

Spectral imaging apparatus and methods

An imaging system images a sample across one or more wavelengths. A light source illuminates a sample with one or more wave-lengths of light, and an image sensor detects light from the illuminated sample. A linear variable long pass filter is positioned to filter light reflected from the sample to pass to the image sensor multiple different wave-length bands having different cut-off wavelengths. Wavelengths of light on one side of the cut-off wavelength are blocked and wavelengths of light on the other side of the cut-off wavelength are passed as multiple different long pass wavelength bands for detection by the image sensor. The image sensor detects light for each of the multiple different long pass wavelength bands from the sample. Data processing circuitry converts the detected light for the multiple different long pass wavelength bands for the sample into corresponding different long pass wavelength band data sets for the sample.

SPECTROMETER AND SPECTRUM MEASUREMENT METHOD UTILIZING SAME

Present invention provides a spectrometer including a first unit spectral filter configured to absorb or reflect light in a part of a wavelength band of a light spectrum of an incident target, a second unit spectral filter configured to absorb or reflect light in a wavelength band different from the part of the wavelength band, a first light detector configured to detect a first light spectrum passing through the first unit spectral filter, a second light detector configured to detect a second light spectrum passing through the second unit spectral filter, and a processing unit configured to perform a function of restoring a light spectrum of the target incident from spectra of light detected from the first light detector and the second light detector. 1. A spectrometer comprising:a first unit spectral filter configured to absorb or reflect light in a part of a wavelength band of a light spectrum of an incident target;a second unit spectral filter configured to absorb or reflect light in a wavelength band different from the part of the wavelength band;a first light detector configured to detect a first light spectrum passing through the first unit spectral filter;a second light detector configured to detect a second light spectrum passing through the second unit spectral filter; anda processing unit configured to perform a function of restoring a light spectrum of the target incident from spectra of light detected from the first light detector and the second light detector.2. The spectrometer of claim 1 , wherein the first unit spectral filter and the second unit spectral filter comprise periodically arranged metal patterns with a predetermined shape3. The spectrometer of claim 2 , wherein the metal patterns of the first unit spectral filter and the metal patterns of the second unit spectral filter have different periods.4. The spectrometer of claim 2 , wherein the first light detector and the second light detector comprise some light detection pixels of a CMOS ...

Method and Apparatus of Filtering Light Using a Spectrometer Enhanced with Additional Spectral Filters with Optical Analysis of Fluorescence and Scattered Light from Particles Suspended in a Liquid Medium Using Confocal and Non Confocal Illumination and Imaging

A system for filtering light using a spectrometer enhanced with spectral filters using an array of independent photodetectors to measure the fluorescent or scattered light signal. A system comprising a light source, an illuminated sample, a light spectrum device, a collimator lens, a plurality of spectral filters each having a varying and selected light transmission spectrum and a plurality of photodetectors wherein each photodetector is oriented to a spectral filter. A scanning cytometer for measuring fluorescence and light scattering from an illuminated portion of the sample comprising a first light source, a scanner scanning in two axes, a fluorescence detector, an objective lens, an optically translucent medium through which a sample may be illuminated and a confocal apparatus positioned distally from the light source and sample and through which light signals from the sample are transmitted to a fluorescence detector.

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 ...

SPATIALLY VARIABLE FILTER SYSTEMS AND METHODS

An improved compact spectrometer system comprising an improved spatially variable filter is disclosed herein. A spatially variable filter may be configured to have a plurality of different transmission profiles at different locations of the filter, to spectrally separate light incident on the filter. The spatially variable filter may comprise a plurality of different filter regions having different transmission profiles, and a plurality of similar filter regions comprising similar transmission profiles. The spatially variable filter may be optically coupled to a detector comprising a plurality of detector elements configured to measure the intensity of light. The measurement data generated by the plurality of detector elements coupled to the plurality of similar filter regions can be used to determine a spatial variation on incident light intensity. 1. A spectrometer comprising:a spatially variable filter comprising a first plurality of similar spaced apart filter regions having similar transmission profiles and a second plurality of at least five different spaced apart filter regions having at least five different transmission profiles; anda detector comprising a plurality of detector elements coupled to the spatially variable filter; anda processor configured with instructions to receive data from the detector and output spectral data to determine a spectrum in response to transmitted light intensity at the plurality of similar spaced apart filter regions and the plurality of different spaced apart filter regions.2. The spectrometer of claim 1 , wherein the processor is configured with instructions to adjust the output spectral data in response to spatial intensity variations of light incident on the spatially variable filter.3. The spectrometer of claim 1 , wherein the processor is configured with instructions to adjust the output spectral data in response to transmitted light intensity variations among the plurality of similar spaced apart filter regions.4. The ...

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.

SPECTROMETRY SYSTEM WITH VISIBLE AIMING BEAM

A handheld spectrometer can be configured with a visible aiming beam to allow the user to determine the measured region of the object. When the visible aiming beam comprises the spectrometer measurement beam, the spectrometer measurement beam comprises sufficient energy for the user to see the measurement beam illuminating the object. When the visible aiming beam comprises a separate beam, the visible aiming beam comprises sufficient energy for the user to see a portion of the aiming beam reflected from the object. The visible aiming beam and measurement beam can be arranged to at least partially overlap on the sample, such that the user has an indication of the area of the sample being measured. 1. (canceled)2. An apparatus to measure spectra of a sample , comprising:a lens array comprising a plurality of lenses, the lens array configured to receive light from the sample;an image sensor comprising a plurality of sensor areas, the image sensor configured to receive light transmitted through the lens array;a support array disposed between the lens array and the image sensor, the support array comprising a plurality of channels configured to optically isolate light within each channel;wherein each channel comprises a first opening facing the lens array, a second opening facing the image sensor, and a channel wall extending between the first opening and the second opening, andwherein the channel wall of each channel extends from a lens of the lens array to a sensor area of the image sensor, such that light exiting from the second opening of each channel forms a pattern of light on each sensor area that substantially matches the size and shape of the second opening of the channel.3. An apparatus as in claim 2 , wherein the light exiting from the second opening of each channel forms a pattern of light on each corresponding sensor area that does not overlap with adjacent patterns of light formed on adjacent sensor areas.4. An apparatus as in claim 2 , wherein the first ...

SPECTRAL BLENDER

A compact spectrometer system comprising a light source and a spectrometer module and methods of using a spectrometer to determine information related to a property of a mixture are provided. One or more light sources are used to direct light into a mixture. One or more spectrometer modules are used to receive light from a mixture. One or more spectra are measured in response to the received light. A property of the mixture is determined in response to measured spectra. 1. A method for determining a property of a mixture , the method comprising:mixing a mixture in a mixing container, the mixing container comprising a housing and a mixing component, wherein the mixing the mixture comprises contacting the mixture with the mixing component as the mixing component moves, wherein the mixing component is separate from the housing and movable independent of the housing;directing a light from a light source into the mixture in the mixing container;receiving, at a spectrometer module, a portion of the light directed to the mixture in the mixing container, wherein the spectrometer module is positioned at a separation distance away from the light source; anddetermining a property of the mixture in response to the received light.2. The method of claim 1 , further comprising:pouring at least a portion of the mixture out of the mixing container,wherein the light from the light source is directed into the mixture as the mixture is poured, and the spectrometer module receives the portion of the light from the mixture as the mixture is poured.3. The method of claim 1 , further comprising:positioning the light source and the spectrometer module within the mixing container.4. The method of claim 1 , wherein a light blocker is located between the light source and the spectrometer module.59.-. (canceled)10. The method of claim 1 , wherein the mixing container comprises a light blocker located between the housing of the mixing container and either the light source or the spectrometer ...

DEVICE AND METHOD FOR MULTISPECTRAL IMAGING IN THE INFRARED

A device for multispectral imaging in the infrared, suitable for detecting at at least one first and one second detection wavelength is provided. It comprises a detection matrix array comprising a set of elementary detectors of preset dimensions forming an image field of given dimensions; and an image-forming optic having a given aperture number (N) and a given focal length (F), which aperture number and focal length are suitable for forming, at any point of the image field, an elementary focal spot covering a set of at least two juxtaposed elementary detectors. The device furthermore comprises a matrix array of elementary metal-dielectric guided-resonance filters, which matrix array is arranged in front of the detection matrix array at a distance smaller than a focal depth of the optic, the dimensions of the elementary filters being such that each elementary focal spot formed at each point of the image field covers at least two elementary filters; and the elementary filters are optimised for pass-band transmission in spectral bands centred on two different central wavelengths, equal to two of said detection wavelengths. 1. A device for multispectral imaging in the infrared suitable for detecting at least one first and one second detection wavelength , comprising:a detection matrix array comprising a set of elementary detectors of preset dimensions forming an image field of given dimensions;an image-forming optic having a given aperture number (N) and a given focal length (F), said number and length being suitable for forming, at every point of the image field, an elementary focal spot, said focal spot covering a set of at least two juxtaposed elementary detectors;a matrix array of elementary metallodielectric guided-mode-resonance filters, said matrix array being arranged in front of the detection matrix array at a distance smaller than a focal depth of the image-forming optic, the dimensions of the elementary filters being chosen so that each elementary focal spot ...

Multiple band short wave infrared mosaic array filter

A camera system includes a mosaic optical color filter array, which includes a plurality of repeating unit cells that enforce spectral consistency and spatial uniformity. Each repeating unit cell of the plurality of repeating unit cells satisfies a minimum focal-plane array perimeter criterion and a minimum perimeter to area ratio criterion. The spatial arrangement of bands within the repeating unit cell minimizes inter-band correlation between nearest neighbors. The camera system further includes as short-wave infrared detector optically coupled to the mosaic optical color filter array. Optionally, the mosaic optical color filter array includes at least five spectral bands. The plurality of repeating unit cells includes the at least five spectral bands.

SPECTROMETER

A spectrometer includes a light conduit configured to align scattered light scattered in a target by light output from a light source into a collimated beam, and a beam block configured to restrict an angle of the scattered light and detect the scattered light via the light conduit or the beam block through a filter array and a detector, thereby achieving miniaturization in a pen type or a flat plate shape while maintaining a spectral characteristic. 1. A spectrometer comprising:a light source;a beam block configured to restrict an angle of a light scattered by a target;a filter array comprising filters configured to transmit a predetermined wavelength band of the light restricted by the beam block; anda detector array comprising detector cells configured to detect the light transmitted through the filter.2. The spectrometer of claim 1 ,wherein the light source is disposed on a back surface of the detector array, andwherein each of the detector cells and the filters comprises a through hole through which the light emitted from the light source passes.3. The spectrometer of claim 1 , wherein the beam block comprises a block end configured to define openings and a support configured to support the block end.4. The spectrometer of claim 3 , wherein a restriction angle θc restricted by the beam block satisfies a following condition:{'br': None, 'i': bh=w−a', 'c, '*tan θ'}wherein bh is a width of the block end, w is a width of the detector cell, and a is distance between the beam block and the target.5. The spectrometer of claim 3 , wherein the openings correspond to the filters with one-to-one correspondence.6. The spectrometer of claim 3 , wherein each of the openings is smaller than an area of the filter.7. The spectrometer of claim 3 , wherein the support has a barrier rib structure that prevents the light scattered by the target from being incident onto a neighboring cell that is disposed adjacent to the detector cells.8. The spectrometer of claim 1 , wherein the ...

Light emitting device, an optical spectrometer, and a down-converting film for a light emitting device

Provided is a light emitting device that includes a substrate; a first electrode formed by a first electrically conductive layer arranged over the substrate; an active light emitting layer arranged over said first electrically conductive layer, and that includes a host matrix and light emitting quantum dots embedded there within; and a second electrode formed by a second electrically conductive layer arranged over the active light emitting layer. The host matrix has charge carrier supplier quantum dots blended with the light emitting quantum dots, forming a binary blend where the charge carrier supplier quantum dots are made and arranged to supply charge carriers to the light emitting quantum dots, and wherein the light emitting quantum dots are made and arranged to accept the supplied charge carriers. Also provided is a spectrometer having the LED and a down-converting film for a LED.

Directional interpolation and cross-band filtering for hyperspectral imaging

Systems and methods are disclosed for processing spectral imaging (SI) data. A training operation estimates reconstruction matrices based on a spectral mosaic of an SI sensor, generates directionally interpolated maximum a-priori (MAP) estimations of image data based on the estimated reconstruction matrices. The training operation may determine filter coefficients for each of a number of cross-band interpolation filters based at least in part on the MAP estimations, and may determine edge classification factors based at least in part on the determined filter coefficients. The training operation may configure a cross-band interpolation circuit based at least in part on the determined filter coefficients and the determined edge classification factors. The configured cross-band interpolation circuit captures mosaic data using the SI sensor, and recovers full-resolution spectral data from the captured mosaic data.

SYSTEM AND METHOD FOR VISIBLE AND INFRARED HIGH DYNAMIC RANGE SENSING

A high dynamic range sensing device is disclosed. The device includes an array of Bayer pattern units. Each of the Bayer pattern units comprises a plurality of pixels and each of the plurality of pixels comprises a plurality of photodiodes. At least one of the plurality of photodiodes in each pixel is configured to detect near infrared (NIR) light and at least one of the plurality of photodiodes in each of the plurality of pixels is configured to detect visible light. 1. A sensing device , comprising:a plurality of pixels, wherein each of the pixels comprises a plurality of photodiodes;wherein at least one of the photodiodes in each pixel is configured to detect non-visible light;wherein at least two of the photodiodes in each pixel are configured to detect visible light; andwherein in each pixel, a single color filter covers the photodiodes configured to detect visible light.2. The sensing device of claim 1 , further comprising:a Bayer pattern unit, wherein the Bayer pattern unit includes the plurality of pixels.3. The sensing device of claim 2 , wherein:the plurality of pixels in one Bayer pattern unit comprise four pixels in a two by two configuration; andthe plurality of photodiodes in one pixel comprise four photodiodes in the two by two configuration.4. The sensing device of claim 1 , wherein:each of the photodiodes in each pixel is associated with an integration time; andat least two photodiodes in each pixel have different integration times.5. The sensing device of claim 4 , wherein:the integration time corresponds to time for the corresponding photodiode to collect charges caused by impinging photons.6. A sensing device claim 4 , comprisingan array of optical filter combinations, wherein each of the optical filter combinations corresponds to a pixel of the sensing device and has at least two different filters, and wherein each of the optical filter combinations is associated with a plurality of photodiodes;wherein one of the filters is a single color filter ...

MULTI-CHANNEL ARRAY TYPE OPTICAL SENSING DEVICE AND MANUFACTURING METHOD THEREOF

Disclosed are a multi-channel array type optical sensing device and its manufacturing method, and the device includes an encapsulating housing and at least one electrical contact on a side of the encapsulating housing. The encapsulating housing includes a printed circuit board, a light receiving unit, and a filter array for receiving an external incident light and converting the external incident light into a multi-channel optical signal with a non-continuous wavelength. The light receiving unit is electrically connected to the printed circuit board for receiving the multi-channel optical signal. The printed circuit board is provided for transmitting the multi-channel optical signal to the outside through the at least one electrical contact. With a simple design, the multi-channel array type optical sensing device becomes an optical component with the features of low cost and easily extended application and suitable for the spectral analysis of various testing objects. 1. A multi-channel array type optical sensing device , comprising:an encapsulating housing, having at least one electrical contact disposed on a side of thereof the encapsulating housing;a filter array having a plurality of filters of different wavelengths, installed in the encapsulating housing, receiving an external incident light, and converting the external incident light into a multi-channel optical signal with a non-continuous wavelength;a light receiving unit, encapsulated into the encapsulating housing, disposed under the filter array, and receiving the multi-channel optical signal;a reflective light shielding layer disposed between adjacent filters of the plurality of filters of the filter array to limit a stray light distribution of the multi-channel optical signal; anda printed circuit board, encapsulated into the encapsulating housing, electrically coupled between the light receiving unit and the at least one electrical contact, and transmitting the multi-channel optical signal to the ...

Stacked-filter image-sensor spectrometer and associated stacked-filter pixels

A stacked-filter image-sensor spectrometer includes an image sensor, a first color filter array, and a second color filter array. The image sensor has a pixel array including a plurality of pixels. The first color filter array has a plurality of first color filters, wherein each first color filter is located above at least one pixel. The second color filter array is located between the first color filter array and the image sensor and has a plurality of second color filters. Each second color filter is located above at least one pixel. Each of the plurality of pixels has thereabove a compound color filter formed of one of the second color filters and one of the first color filters, the second filter having a second passband that partially overlaps a first passband of the first color filter in a first overlapping wavelength range.

FILTER ARRAY, SPECTRAL DETECTOR INCLUDING THE FILTER ARRAY AND SPECTROMETER EMPLOYING THE SPECTRAL DETECTOR

Provided are a filter array, a spectral detector including the filter array, and a spectrometer employing the spectral detector. The filter array may have a multi-array structure including a plurality of filter arrays. The filter array may include a first filter array having a first structure in which a plurality of first filters with different transmittance spectrums are arranged, and a second filter array having a second structure in which a plurality of second filters with different transmittance spectrums are arranged, the second filter array being arranged to at least partially overlap the first filter array at a first position relative to the first filter array so that the multi-arrangement type filter array has a first set of absorbance characteristics. The second filter array may be configurable to be arranged to at least partially overlap the first filter array at a second position relative to the first filter array so that the multi-arrangement type filter array has a second set of absorbance characteristics different from the first set of absorbance characteristics. 1. A spectral detector comprising:a multi-arrangement type filter array including a plurality of filter arrays arranged to overlap each other in a path of propagation of incident light; anda sensor array including a plurality of sensors configured to sense light passing through the multi-arrangement type filter array, a first filter array having a first structure in which a plurality of first filters with different transmittance spectrums according to different absorbance characteristics thereof are arranged; and', 'a second filter array having a second structure in which a plurality of second filters with different transmittance spectrums according to different absorbance characteristics thereof are arranged, the second filter array being arranged to at least partially overlap the first filter array at a first position relative to the first filter array so that the multi-arrangement type ...

OPTICAL FILTER AND SPECTROMETER

An optical assembly is disclosed including two laterally variable bandpass optical filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. The lateral displacement may cause a suppression of the Oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample. 132-. (canceled)33. An assembly comprising:a light source configured to provide illuminating light;a cell comprising a cavity configured to receive and contain a sample in fluid form while transmitting the illuminating light through the cell;an optical assembly that includes an optical filter; and 'wherein the signal light is emitted by the sample in fluid form while the sample in fluid form is in the cavity.', 'a sensor, coupled to the optical filter, configured to selectively detect signal light propagated through the optical filter,'}34. The assembly of claim 33 , wherein the cell is an elongated optical cell.35. The assembly of claim 33 , wherein the cell is a cuvette.36. The assembly of claim 33 , wherein the cell extends parallel to a direction that is transversal to an optical path of the illuminating light.37. The assembly of claim 33 , wherein the cell further comprises an inlet configured to receive the sample in fluid form claim 33 , andwherein the cavity is in fluid communication with the inlet.38. The assembly of claim 33 , wherein the cavity is defined by a substantially transparent sidewall.39. The assembly of claim 38 , wherein the illuminating light is transmitted through the substantially transparent sidewall.40. The assembly of claim 38 , wherein the signal light is transmitted through the substantially transparent sidewall.41 ...

Adaptive, Very High Resolution Imaging Spectrometer

A spectrometer for capturing two dimensional images of observed scenes in a sequence of spectral sub-bands wherein each measurement of a sub-band occurs over a two dimensional detector array at the same time. Sub-band measurement sequences are executed based upon, a) environmental conditions, b) user priorities, and, c) results of real-time analysis of the two dimensional spectral scene data outputs from the sensor. 1. A sensing apparatus in the form of an adaptive spectral imaging sensor system that observes a two dimensional scene and focuses light on a two dimensional , electronically controlled , variable spacing grating that produces very high resolution spectral images of observed scenes measured with a two dimensional detection array , wherein the array measures the two dimensional scene being observed in a single spectral sub-band at the same time over the two dimensional observed field of view.2. The variable spacing grating of is controlled by a sequence of instructions that determine the sequence of specific grating spacings that results in a sequence of observing specific spectral sub-bands over the two dimensional array of detectors wherein each spectral sub-band is observed over the entire two dimensional detector array at a single time.3. The variable spacing grating of may have its varying spatial separation positions effected by MEMs spacing elements.4. The variable spacing grating of is controlled by a sequence of instructions that determine the integration time for each of the spectral sub-band observations.5. The sequence of instructions of and are generated by an electronic processing element that determines the sequence and duration of spacings based upon knowledge of environmental conditions which determine the visibility limits in each sub-band imposed by the environmental conditions.6. The sequence of instructions of and may be generated by spectral analysis of the observed sub-band two dimensional images using spectral template matching and ...

SPECTROMETER

A spectrometer includes a light conduit configured to align scattered light scattered in a target by light output from a light source into a collimated beam, and a beam block configured to restrict an angle of the scattered light and detect the scattered light via the light conduit or the beam block through a filter array and a detector, thereby achieving miniaturization in a pen type or a flat plate shape while maintaining a spectral characteristic. 1. A spectrometer comprising:a light source configured to emit a light to a target;a light conduit comprising a measurement hole through which the light scattered by the target is incident, an inner surface configured to condense the light incident on the measurement hole into a collimated beam, and an output hole configured to output the light condensed by the inner surface;a detector configured to detect the light output from the output hole of the light conduit; anda filter array comprising filters arranged on a detection surface of the detector and transmitting a predetermined wavelength band of the light output from the output hole of the light conduit.2. The spectrometer of claim 1 , wherein an inner surface of the light conduit is a hyperboloidal reflection surface.3. The spectrometer of claim 2 , further comprising: a lens disposed in a path of the light that is incident through the measurement hole.4. The spectrometer of claim 1 , wherein the inner surface of the light conduit is a parabolic reflection surface.5. The spectrometer of claim 1 , further comprising: a beam splitter configured to direct the light emitted from the light source toward the output hole of the light conduit and direct the light output from the output hole of the light conduit toward the detector.6. The spectrometer of claim 5 , wherein the beam splitter is a dichroic mirror or a dichroic prism.7. The spectrometer of claim 1 , wherein the light source is a narrowband wavelength light source or a wideband wavelength light source.8. The ...

Spectral Sensor for Multispectral Imaging

A spectral sensor comprises (i) a first type of interference filter comprising reflective multilayers of a first type and an intermediate layer configured to give a constructive interference for a wavelength in a first range, and (ii) a second type of interference filter comprising reflective multilayers of a second type and an intermediate layer configured to give a constructive interference for a wavelength in a second range. The sensor further comprises first and second filter stacks configured to selectively transmit light in the first and second wavelength ranges to first and second photo-sensitive areas, respectively. The first filter stack includes the first type of interference filter and a second type of dielectric mirror that is reflective in the second wavelength range. The second filter stack includes the second type of interference filter and a first type of dielectric mirror that is reflective in the first wavelength range.

Reconfigurable polarization imaging system

Methods, apparatus and systems that relate to a low-cost reconfigurable polarimetric imaging are described. One example polarization imaging system includes a lens positioned to receive light reflected from one or more objects, and a spectral-polarization filter positioned at an aperture plane of the lens to filter the light received by the lens. The polarization imaging system can further include a sensor positioned to detect the filtered light from the spectral-polarization filter to form a polarization image of the one or more objects. The spectral-polarization filter comprises a first array of multiple spectral filters and a second array of multiple polarizers.

MULTI-CHANNEL UV DETECTION FOR IMPROVED SOLAR SPECTRUM AND UV INDEX ESTIMATION

The present disclosure describes an ultraviolet (UV) sensor configured to detect a target UV spectrum (e.g., UVB spectrum). The UV sensor includes a first photodiode with a first UV spectral response and a second photodiode with a second UV spectral response. A filter layer having a graded spectral response is formed over the second photodiode, and the second UV spectral response is affected by a controlled parameter (e.g., thickness) of the filter layer. The UV sensor further includes a subtraction circuit coupled with the first photodiode and the second photodiode. The subtraction circuit is configured to provide a differential response based on a difference between the first UV spectral response and the second UV spectral response. The controlled parameter of the filter layer can be selected such that the differential response provides a detected spectral response of the target spectrum. 1. An ultraviolet (UV) sensor , comprising:a first photodiode with a first UV spectral response;a second photodiode with a second UV spectral response;a filter layer having a graded spectral response, the filter layer being formed over the second photodiode, wherein the second UV spectral response is affected by a controlled parameter of the filter layer; anda subtraction circuit coupled with the first photodiode and the second photodiode, the subtraction circuit being configured to provide a differential response based on a difference between the first UV spectral response and the second UV spectral response.2. The UV sensor of claim 1 , wherein the differential response is associated with a target spectrum claim 1 , and the controlled parameter is selected to achieve the target spectrum.3. The UV sensor of claim 2 , wherein target spectrum comprises a UVB spectrum.4. The UV sensor of claim 1 , further comprising a UVA filter formed over the first and second photodiodes.5. The UV sensor of claim 1 , wherein the subtraction circuit comprises one or more analog-to-digital ...

SPECTROMETRY SYSTEM WITH VISIBLE AIMING BEAM

A handheld spectrometer can be configured with a visible aiming beam to allow the user to determine the measured region of the object. When the visible aiming beam comprises the spectrometer measurement beam, the spectrometer measurement beam comprises sufficient energy for the user to see the measurement beam illuminating the object. When the visible aiming beam comprises a separate beam, the visible aiming beam comprises sufficient energy for the user to see a portion of the aiming beam reflected from the object. The visible aiming beam and measurement beam can be arranged to at least partially overlap on the sample, such that the user has an indication of the area of the sample being measured. 1. An apparatus to measure spectra of a sample , comprising:a detector having a field of view to measure the spectra of the sample within the field of view;a light source to direct an optical beam to the sample within the field of view, wherein a portion of the optical beam reflected from the sample is visible to a user.2. An apparatus as in claim 1 , wherein the portion of the optical beam reflected from the sample visible to the user defines a measurement area of the sample.3. An apparatus as in claim 1 , further comprising a casing supported with the detector and the light source claim 1 , the detector and the light source arranged to fit within the casing claim 1 , the casing sized to fit within a hand of the user to allow the user to aim the spectrometer at the sample and measure the sample.4. An apparatus as in claim 3 , further comprising a user input supported with the casing and arranged for the user to aim the spectrometer and measure the sample with the user input manipulated with the hand holding the spectrometer.5. An apparatus as in claim 4 , further comprising circuitry coupled to the detector and the light source claim 4 , the circuitry configured to transmit the optical beam in response to the user input with the hand holding the hand held spectrometer.6. ...

Inspection apparatus, sensing apparatus, sensitivity control apparatus, inspection method, and program

The present disclosure relates to an inspection apparatus, a sensing apparatus, a sensitivity control apparatus, an inspection method, and a program that perform inspection with improved accuracy. The inspection apparatus includes a detection section for detecting a plurality of different wavelength region components of ambient light reflected from an inspection target to be inspected, and a control section for controlling the sensitivity of each of the different wavelength region components. The control section controls the sensitivity by calculating a histogram indicating the detection level in every wavelength region of light reflected from the inspection target that is detected by the detection section, and determining, based on histograms of particular spectroscopic components, whether or not the sensitivity is properly set for the detection section. The present technology is applicable, for example, to an inspection apparatus that inspects vegetation.

Window obscuration sensors for mobile gas and chemical imaging cameras

An infrared (IR) imaging system for determining a concentration of a target species in an object is disclosed. The imaging system can include an optical system including a focal plane array (FPA) unit behind an optical window. The optical system can have components defining at least two optical channels thereof, said at least two optical channels being spatially and spectrally different from one another. Each of the at least two optical channels can be positioned to transfer IR radiation incident on the optical system towards the optical FPA. The system can include a processing unit containing a processor that can be configured to acquire multispectral optical data representing said target species from the IR radiation received at the optical FPA. One or more of the optical channels may be used in detecting objects on or near the optical window, to avoid false detections of said target species.

MULTISPECTRAL IMAGING DEVICE

The invention relates to a multispectral imaging device including: a photosensitive detector DET made up of a matrix of pixels; an array of microlenses ML, ML, ML reproducing the matrix of pixels; and a filter module MF formed by a matrix of individual filters λ reproducing the matrix of pixels. The device is remarkable in that the array of microlenses is arranged directly in contact with the detector DET, and the filter module MF is made on a substrate SS that is put into contact with the array of microlenses. 1. A multispectral imaging device comprising:a photosensitive detector (DET) made up of a matrix of pixels;{'b': 1', '2', '3, 'an array of microlenses (ML, ML, ML) reproducing the matrix of pixels; and'}{'b': 1', '2', '3, 'a filter module (MF) formed by a matrix of individual filters (λ, λ, λ) reproducing the matrix of pixels;'}the device being characterized in that the array of microlenses is arranged directly in contact with the detector, and said filter module is made on a substrate that is put into contact with said array of microlenses.2. A device according to claim 1 , characterized in that said filter module (MF) is adhesively bonded to said detector (DET) around its periphery.3. A device according to claim 1 , characterized in that said filter module (MF) is provided with alignment patterns.4121211124412. A device according to claim 1 , characterized in that said filter module (MF) is made up of two mirrors (MIR claim 1 , MIR; claim 1 , M) spaced apart by a spacer (SP) claim 1 , the filter module having a plurality of filter cells (IF claim 1 , IF claim 1 , . . . claim 1 , IF) claim 1 , and each of said filter cells having at least two filters (FP claim 1 , FP).5123. A device according to claim 4 , characterized in that at least one of said filters (FP claim 4 , FP claim 4 , FP) has a bandpass transfer function.6111213114. A device according to claim 4 , characterized in that at least some of said filter cells (IF claim 4 , IF claim 4 , IF claim 4 , F ...

MULTISPECTRAL SENSOR RESPONSE BALANCING

An optical filter may include a substrate. The optical filter may include a first mirror. The optical filter may include a second mirror. The optical filter may include a spacer. The first mirror, the second mirror, and the spacer may form a plurality of component filters. A first component filter, of the plurality of component filters, may be associated with a first cross-sectional area and a second component filter, of the plurality of component filters, is associated with a second cross-sectional area. The first cross-sectional area and the second cross-sectional area may be configured to response balance the first component filter and the second component filter. 1. An optical filter , comprising:a substrate;a first mirror;a second mirror; and wherein the first mirror, the second mirror, and the spacer form a plurality of component filters,', 'wherein a first component filter, of the plurality of component filters, is associated with a first cross-sectional area and a second component filter, of the plurality of component filters, is associated with a second cross-sectional area,', 'wherein the first cross-sectional area and the second cross-sectional area are configured to response balance the first component filter and the second component filter., 'a spacer,'}2. The optical filter of claim 1 , wherein cross-sectional areas of the plurality of component filters are configured based at least in part on respective input fluxes claim 1 , filter responsivities claim 1 , and sensor responsivities.3. The optical filter of claim 1 , wherein the optical filter forms at least 64 channels.4. The optical filter of claim 1 , wherein at least one of the first mirror claim 1 , the second mirror claim 1 , or the spacer includes at least one of:a germanium layer,a silicon-germanium layer,a hydrogenated silicon layer,a hydrogenated germanium layer, ora hydrogenated silicon-germanium layer.5. The optical filter of claim 1 , wherein at least one of the first mirror claim 1 , the ...

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 ...

Dielectric mirror based multispectral filter array

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

Compact Optical Spectrometer

A spectrometer employs multiple filters having complex filter spectra that can be generated robustly from received light over short optical path lengths. The complex filter spectra provide data that can be converted to a spectrum of the received light using compressed sensing techniques. The result is a more compact, easily manufactured spectrometer.

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.

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 ...

MULTICOLOR SENSOR FOR FLOW CYTOMETRY

The present disclosure relates to a spectral sensor for detection of individual light-emitting particles. The sensor is comprising an array of photo-sensitive detectors for detecting light emitted by said individual light-emitting particles and a filter array comprising a plurality of different band-stop filters. The filter array is configured to transmit wavelengths in a detectable wavelength region to the array of photo-sensitive detectors, and wherein each band-stop filter is associated with one or more particular photo-sensitive detectors, and the plurality of different band-stop filters are configured to reflect different wavelength intervals within said detectable wavelength region so that each photo-sensitive detector of the array is configured to detect the wavelengths of the detectable wavelength region other than the reflected wavelength interval of the band-stop filter being associated with the photo-sensitive detector. The sensor is further comprising a processing unit in communication with said array of photo-sensitive detectors and configured for determining a spectral characteristic of an individual light-emitting particle based on the response from said array of photo-sensitive detectors. 1. A spectral sensor for detection of individual light-emitting particles , said sensor comprisingan array of photo-sensitive detectors for detecting light emitted by said individual light-emitting particles;a filter array comprising a plurality of different band-stop filters;wherein the filter array is configured to transmit wavelengths in a detectable wavelength region to the array of photo-sensitive detectors, and wherein each band-stop filter is associated with one or more particular photo-sensitive detectors, and wherein the plurality of different band-stop filters are configured to reflect different wavelength intervals within said detectable wavelength region so that each photo-sensitive detector of the array is configured to detect the wavelengths of the ...

METHOD AND SPECTROMETER APPARATUS FOR INVESTIGATING AN INFRARED ABSORPTION OF A SAMPLE

A method of investigating a sample () having an absorption within an infrared spectral range of interest, comprises the steps of creating measuring light () with a light source device (), wherein the measuring light () includes wavelengths covering the infrared spectral range, directing the measuring light () through the sample () to a detector device () with a plurality of detector units (), () each of which comprising an infrared sensitive sensor section () and an associated metamaterial resonator section () having a specific spectral resonance line (), wherein the spectral resonance lines () of the resonator sections () have different frequencies within the infrared spectral range, wherein the measuring light () is transmitted through the sample () to the resonator sections () and subsequently sensed by the sensor sections (), wherein an output of each of the sensor sections () depends on the absorption of the sample () at the frequency of the spectral resonance line () of the associated resonator section (), and providing at least one absorption characteristic of the sample () on the basis of the output of the sensor sections (), wherein the sample () is arranged for providing near field coupling of electronic states of the sample () and photonic resonator states of the resonator sections (), wherein, for each of the resonator sections (), a resonance line attenuation is created, which is determined by a complex refractive index of the sample () at the frequency of the spectral resonance line () of the resonator section (), and the output of each of the sensor sections () is determined by the resonance line attenuation of the associated resonator section (). Furthermore, a spectrometer apparatus () for investigating a sample () is described, which has an absorption within an infrared spectral range of interest. 1. A method of investigating a sample having an absorption within an infrared spectral range of interest , comprising the steps of:creating measuring ...

Medical imaging device, medical image acquisition system, and endoscope apparatus

A medical imaging device includes: a spectroscopic unit that separates light into a first light component of a wavelength band and a second light component; a first imaging element that includes a plurality of first pixels configured to receive the first light component and convert the first light component into electric signals; and a second imaging element that includes a plurality of second pixels and includes a first color filter on which first filters configured to transmit the light component of the wavelength band of one color in the light components of the wavelength bands of two colors that are contained in the second light component and second filters configured to transmit light components of a plurality of wavelength bands including at least the wavelength band of another color in the light components of the wavelength bands of the two colors are arranged.

SPECTROMETRY SYSTEMS, METHODS, AND APPLICATIONS

A hand held spectrometer is used to illuminate the object and measure the one or more spectra. The spectral data of the object can be used to determine one or more attributes of the object. In many embodiments, the spectrometer is coupled to a database of spectral information that can be used to determine the attributes of the object. The spectrometer system may comprise a hand held communication device coupled to a spectrometer, in which the user can input and receive data related to the measured object with the hand held communication device. The embodiments disclosed herein allow many users to share object data with many people, in order to provide many people with actionable intelligence in response to spectral data. 1. A compact spectrometer comprising:a diffuser layer;a filter matrix layer;an iris layer;a lens layer; anda detector,wherein a distance from the diffuser layer to a light receiving surface of the detector is within a range from about 0.5 mm to about 3 mm.2. The spectrometer of claim 1 , wherein the spectrometer comprises a resolution within a range from about 1 nm to about 100 nm.3. The spectrometer of claim 2 , wherein the spectrometer comprises a resolution within a range from about 5 nm to about 50 nm.4. The spectrometer of claim 1 , further comprising a support beneath the detector claim 1 , wherein a distance from an upper surface of the diffuser layer to a lower surface of the support is within a range from about 0.5 mm to about 3 mm.5. The spectrometer of claim 4 , wherein a plurality of bonding pads is coupled to the lower surface of the support to couple the image sensor to a circuit board.6. The spectrometer of claim 1 , further comprising a stopper layer disposed between the detector and the lens layer.7. The spectrometer of claim 1 , wherein each of the elements is arranged in the following sequence: the diffuser layer claim 1 , the filter matrix layer claim 1 , the iris layer claim 1 , the lens layer claim 1 , and the detector.8. The ...

HYPERSPECTRAL IMAGE SENSOR WITH CALIBRATION

A method for calibrating an image sensor begins by illuminating a portion of the image sensor with an input light spectrum, where the input light spectrum includes light of known wavelength and intensity. The method continues by sampling an output for each optical sensor of the image sensor, where each optical sensor is associated with one or more optical filters and where each optical filter being associated with a group of optical filters of a plurality of groups of optical filters. Each optical filter of a group of optical filters is configured to pass light in a different wavelength range and at least some optical filters in different groups of the plurality of groups of optical filters are configured to pass light in substantially a same wavelength range. The method then continues by comparing a sampled output for each optical sensor of the plurality of optical sensors with an expected output and generating a calibration factor for each of at least a subset of the plurality of optical sensors and storing the generated calibration factors in memory. 1. A method for calibrating an image sensor , comprising:illuminating at least a portion of the image sensor with an input light spectrum, wherein the input light spectrum includes light of known wavelength and intensity, wherein the image sensor includes a plurality of optical sensors;sampling an output for each optical sensor of a plurality of optical sensors of the image sensor, wherein each optical sensor is associated with one or more optical filters, wherein each optical filter is associated with a group of optical filters of a plurality of groups of optical filters, wherein each optical filter of a group of optical filters is configured to pass light in a different wavelength range and wherein at least some optical filters in different groups of the plurality of groups of optical filters are configured to pass light in substantially a same wavelength range;comparing a sampled output for each optical sensor of ...

SYSTEM AND METHOD FOR VISIBLE AND INFRARED HIGH DYNAMIC RANGE SENSING

A high dynamic range sensing device is disclosed. The device includes an array of Bayer pattern units. Each of the Bayer pattern units comprises a plurality of pixels and each of the plurality of pixels comprises a plurality of photodiodes. At least one of the plurality of photodiodes in each pixel is configured to detect near infrared (NIR) light and at least one of the plurality of photodiodes in each of the plurality of pixels is configured to detect visible light. 1. A sensing device , comprisingan array of Bayer pattern units, whereineach of the Bayer pattern units comprises a plurality of pixels;each of the plurality of pixels comprises a plurality of photodiodes;at least one of the plurality of photodiodes in each pixel is configured to detect non-visible light;at least two of the plurality of photodiodes in each of the plurality of pixels is configured to detect visible light; andin each of the plurality of pixels, a single red, green, or blue filter covers the at least two photodiodes configured to detect visible light.2. The sensing device of claim 1 , whereinthe plurality of pixels in one Bayer pattern unit comprise four pixels in a two by two configuration; andthe plurality of photodiodes in one pixel comprise four photodiodes in the two by two configuration.3. The sensing device of claim 1 , whereineach of the plurality of photodiodes in one pixel is associated with an integration time; andat least two photodiodes of the plurality of photodiodes in one pixel have different integration times.4. The sensing device of claim 3 , wherein the integration time corresponds to time for the corresponding photodiode to collect charges caused by impinging photons.5. A sensing device claim 3 , comprisingan array of optical filter combinations, each of the optical filter combinations corresponding to a pixel of the sensing device and having at least two different filters,and each of the optical filter combinations associated with a plurality of photodiodes;one of the ...

METHOD AND APPARATUS FOR DETERMINING PRESENCE AND OPERATION OF A COMPONENT IN A PRINTED CIRCUIT BOARD

A method and apparatus for determining a color and brightness of an LED, when the LED is biased with a current pulse. The apparatus includes a sensor having a plurality of filters and an output probe connected to the sensor, the output probe providing a color output and a brightness output in a single signal. The sensor may further include an input probe connected to the sensor providing power and a ground probe connected to the sensor providing a grounded connection to the sensor. The plurality of filters in the sensor are preferably configured in a matrix array of color receptors having different colors. The method of this invention utilizes pulsing/dynamic sampling to determine a frequency and/or a brightness of the LED output. 1. An apparatus for determining a color and brightness of an LED , the apparatus comprising:a sensor having a plurality of filters;an output probe connected to the sensor, the output probe providing a color output and a brightness output in a single signal;an input probe connected to the sensor, the input probe providing power to the sensor;a ground probe connected to the sensor;a microprocessor connected between the plurality of filters and the output probe for calculating the color and the brightness of the LED; andan oscillator connected to the microprocessor to allow the microprocessor to operate at a high speed to detect fast changes in light from the LED.2. The apparatus of wherein the apparatus operates in a DC mode when the LED is biased with a constant current and in a pulsing mode when the LED is biased with a current pulse.3. The apparatus of wherein the plurality of filters comprise:a plurality of clear receptors;a plurality of red receptors;a plurality of blue receptors; anda plurality of green receptors, wherein the plurality of filters are interspersed in the sensor.4. The apparatus of wherein the input probe accommodates an operating voltage between approximately 2.7 Vdc and 5.5 Vdc.5. The apparatus of further including a ...

MULTISPECTRAL IMAGING BASED ON COMPUTATIONAL IMAGING AND A NARROW-BAND ABSORPTIVE FILTER ARRAY

Multispectral imaging systems are disclosed. An exemplary multispectral imager includes a narrow-band absorptive filter array and a sensor array comprising a plurality of pixels. The narrow-band absorptive filter array has a plurality of filter elements, each filter element being associated with a pixel of the sensor array. The filter elements are organized into groups of N filter elements, where N is greater than three. Each filter element absorbs one narrow band and transmits N−1 narrow bands. The group of N filter elements absorbs all N narrow bands. 1. A multispectral imager for sensing a multispectral image , comprising:a light sensor array comprising a plurality of pixels; and{'sub': i', 'i', 'i', 'i, 'a filter array situated upstream of the light sensor array, the filter array comprising a plurality of narrow-band absorptive filter elements in which individual filter elements are associated with respective individual pixels of the light sensor array, the plurality of filter elements being organized into groups each comprising respective N filter elements, in which individual filter element i absorbs Krespective narrow bands and transmits N−Knarrow bands of incident light, wherein the group of N filter elements absorbs the N narrow bands, N is greater than three, Kis between 1 and N−1, i is from 1 to N, and Kis different for at least two individual filter elements.'}2. The imager of claim 1 , wherein respective absorption peaks of the N filter elements are within a range of 900 nanometers to 1700 nanometers.3. The imager of claim 1 , wherein at least one absorption peak of the N filter elements is within a visible spectrum.4. The imager of claim 1 , wherein at least one absorption peak of the N filter elements is within an ultraviolet spectrum5. The imager of claim 1 , wherein at least one absorption peak of the N filter elements is within an infrared spectrum.6. The imager of claim 1 , wherein one or more of the N filter elements includes an interference-type ...

SPATIALLY VARIABLE LIGHT SOURCE AND SPATIALLY VARIABLE DETECTOR SYSTEMS AND METHODS

An improved compact spectrometer system comprising a spatially variable detector and/or a spatially variable light source is disclosed. The spatially variable detector can comprise a first plurality of similar spaced apart detector regions having similar detectable wavelength ranges and a second plurality of different spaced apart detector regions having different detectable wavelength ranges that are different from the similar detectable wavelength ranges. The spatially variable light source can comprise a first plurality of similar spaced apart lighting regions emitting light of similar detectable wavelength ranges and a second plurality of different spaced apart lighting regions emitting light of different detectable wavelength ranges that are different from the similar detectable wavelength ranges. The disparity in measured light intensity along the spatially variable detector and the disparity in emitted light intensity along the spatially variable light source can be determined and adjusted. 1. A spectrometer comprising:a spatially variable filter comprising a first plurality of similar spaced apart filter regions having similar transmission profiles and a second plurality of at least five different spaced apart filter regions having at least five different transmission profiles; anda detector comprising a plurality of detector elements coupled to the spatially variable filter; anda processor configured with instructions to receive data from the detector and output spectral data to determine a spectrum in response to intensities of the plurality of different spaced apart filter regions adjusted in response to transmitted light intensity at the plurality of similar spaced apart filter regions.2. The spectrometer of claim 1 , wherein the processor is configured with instructions to adjust the output spectral data in response to spatial intensity variations of light incident on the spatially variable filter.3. The spectrometer of claim 1 , wherein the processor ...

INTEGRATED CIRCUIT FOR SPECTRAL IMAGING SYSTEM

An integrated circuit for an imaging system is disclosed. In one aspect, an integrated circuit has an array of optical sensors, an array of optical filters integrated with the sensors and configured to pass a band of wavelengths onto one or more of the sensors, and read out circuitry to read out pixel values from the sensors to represent an image. Different ones of the optical filters are configured to have a different thickness, to pass different bands of wavelengths by means of interference, and to allow detection of a spectrum of wavelengths. The read out circuitry can enable multiple pixels under one optical filter to be read out in parallel. The thicknesses may vary non-monotonically across the array. The read out, or later image processing, may involve selection or interpolation between wavelengths, to carry out spectral sampling or shifting, to compensate for thickness errors. 1. An imaging system including an integrated circuit , the integrated circuit comprising:an array of optical sensors, each optical sensor comprising at least one pixel; an array of optical filters each configured to pass a band of wavelengths onto one or more of the sensors, the array of optical filters being directly post-processed on the array of optical sensors, wherein different ones of the optical filters are configured to have different thicknesses and are configured to pass different bands of wavelengths using interference and to detect a spectrum of wavelengths; andread out circuitry configured to read out pixel values from the array of sensors to represent an image and comprising a wavelength selector for selecting between, according to a calibration input, or combining read out signals of corresponding pixels of different optical filters to tune an output to correspond to a particular wavelength.2. The imaging system of claim 1 , wherein the wavelength selector is arranged to output signals representing proportionately fewer wavelengths than a number of different optical ...

SPECTRUM-INSPECTION DEVICE

A spectrum-inspection device includes: a sensor unit array including a first sensor unit and a second sensor unit; a dual-band pass filter disposed on the sensor unit array to cover the first sensor unit and the second sensor unit, wherein the dual-band pass filter allows a first waveband and a second waveband of a light beam to pass through; and a filter disposed on the dual-band pass filter to cover the second sensor unit, wherein the filter allows wavelengths of a light beam longer than a first wavelength to pass through, wherein the first wavelength is longer than a peak wavelength of the first waveband and shorter than a peak wavelength of the second waveband. 1. A spectrum-inspection device , comprising:a sensor unit array comprising a first sensor unit and a second sensor unit;a dual-band pass filter disposed on the sensor unit array to cover the first sensor unit and the second sensor unit, wherein the dual-band pass filter allows a first waveband and a second waveband of a light beam to pass through;a filter disposed on the dual-band pass filter to cover the second sensor unit, wherein the filter allows wavelengths of a light beam longer than a first wavelength to pass through;a second dual-band pass filter disposed on the sensor unit array; anda second filter disposed on the second dual-band pass filter,wherein the first wavelength is longer than a peak wavelength of the first waveband and shorter than a peak wavelength of the second waveband,the sensor unit array comprises a third sensor unit and a fourth sensor unit,the second dual-band pass filter covers the third sensor unit and the fourth sensor unit and allows a third waveband and a fourth waveband of a light beam to pass through,the second filter covers the fourth sensor unit and allows wavelengths of a light beam longer than a second wavelength to pass through, andthe second wavelength is longer than a peak wavelength of the third waveband and shorter than a peak wavelength of the fourth waveband, ...

LIGHT SENSOR MODULES AND SPECTROMETERS INCLUDING AN OPTICAL GRATING STRUCTURE

An optoelectronic module includes a light guide arranged to receive light, such as ambient light or light reflected by an object. The light guide has a diffractive grating that includes multiple sections, each of which is tuned to a respective wavelength or narrow band of wavelengths. The module further includes multiple photosensitive elements, each of which is arranged to receive light diffracted by a respective one of the sections of the diffractive grating. The module can be integrated, for example, as part of a spectrometer or other apparatus for optically determining characteristics of an object. 1. An optoelectronic module comprising:a light guide arranged to receive light from outside the module, the light guide having a diffractive grating that includes a plurality of sections each of which is tuned to a respective wavelength or narrow band of wavelengths; anda plurality of photosensitive elements each of which is arranged to receive light diffracted by a respective one of the sections of the diffractive grating.2. The optoelectronic module of wherein different sections of the diffractive grating have periodic grating structures that differ from one another.3. The optoelectronic module of wherein the diffractive grating comprises sub-wavelength structures or multi-layer coated grating structures.4. The optoelectronic module of further including an optical assembly arranged to receive the light claim 1 , wherein the light guide has at least one other diffractive grating arranged to diffract the received light into its spectral components.5. The optoelectronic module of wherein the at least one other diffractive grating includes:a first diffractive grating disposed on an optical assembly-side of the light guide; anda second diffractive grating disposed to intersect a zeroth-order light beam passing through the first diffractive grating.6. The optoelectronic module of wherein the photosensitive elements are pixels in a CMOS or CCD sensor.7. The optoelectronic ...

DIELECTRIC MIRROR BASED MULTISPECTRAL FILTER ARRAY

An optical sensor device may include a set of optical sensors. The optical sensor device may include a substrate. The optical sensor device may include a multispectral filter array disposed on the substrate. The multispectral filter array may include a first dielectric mirror disposed on the substrate. The multispectral filter array may include a spacer disposed on the first dielectric mirror. The spacer may include a set of layers. The multispectral filter array may include a second dielectric mirror disposed on the spacer. The second dielectric mirror may be aligned with two or more sensor elements of a set of sensor elements. 1. An optical sensor device , comprising:a set of optical sensors;a substrate; and a first dielectric mirror disposed on the substrate,', 'the spacer including a set of layers,', 'a spacer disposed on the first dielectric mirror,'}, 'a second dielectric mirror disposed on the spacer; and, 'the multispectral filter array including, 'a multispectral filter array disposed on the substrate,'}wherein the second dielectric mirror is aligned with two or more sensor elements of a set of sensor elements.2. The optical sensor device of claim 1 , where the first dielectric mirror has a uniform thickness.3. The optical sensor device of claim 1 , where the spacer is disposed completely on the first dielectric mirror.4. The optical sensor device of claim 1 , where the second dielectric mirror is aligned with a majority of the set of sensor elements.5. The optical sensor device of claim 1 , where the second dielectric mirror covers all of the set of sensor elements.6. The optical sensor device of claim 1 , where the set of layers comprises: a first layer of the set of spacer layers corresponding to a first channel, of a set of optical channels aligned to the set of optical sensors, and being associated with a first thickness, and', 'a second layer of the set of spacer layers corresponding to a second channel, of the set of optical channels, and being ...

Optical device

An optical device may comprise an array of sensor elements and an array of optical channels disposed on the array of sensor elements. At least one optical channel of the array of optical channels may be configured to pass bandpass filtered light to at least one sensor element of the array of sensor elements. At least one other optical channel of the array of optical channels may be configured to pass non-bandpass filtered light to at least one other sensor element of the array of sensor elements.

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 ...

SINGLE-SENSOR HYPERSPECTRAL IMAGING DEVICE

The present disclosure generally relates to hyperspectral spectroscopy, and in particular, to systems, methods and devices enabling a single-sensor hyperspectral imaging device. Hyperspectral (also known as “multispectral”) spectroscopy is an imaging technique that integrates multiples images of an object resolved at different narrow spectral bands (i.e., narrow ranges of wavelengths) into a single data structure, referred to as a three-dimensional hyperspectral data cube. Data provided by hyperspectral spectroscopy allow for the identification of individual components of a complex composition through the recognition of spectral signatures of individual components within the three-dimensional hyperspectral data cube. 1. A hyperspectral imaging device comprising:a photo-sensor array including a plurality of photo-sensors, each photo-sensor in the plurality of photo-sensors providing a respective output;a spectral filter array having a plurality of filter elements, wherein each filter in the filter elements is arranged to filter light received by a respective one or more of the plurality of photo-sensors, and wherein each filter element is one of a plurality of filter-types, wherein each filter-type is characterized by a spectral pass-band different from the other filter-types;an interface module to select one or more sub-sets of photo-sensor outputs, wherein each sub-set of photo-sensor outputs is associated with a single respective filter-type; anda control module configured to generate a hyperspectral data cube from the one or more sub-sets of photo-sensor outputs by generating a plurality of respective images, wherein each respective image is produced from a single respective sub-set of photo-sensor outputs so that each of the plurality of respective images is associated with a particular filter-type.2. The hyperspectral imaging device of claim 1 , wherein the controller is further configured to capture single frame image data by controlling the exposure of 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.

OPTOELECTRONIC MODULES FOR THE ACQUISITION OF SPECTRAL AND DISTANCE DATA

An optoelectronic module operable to acquire distance data and spectral data includes an array of demodulation pixels and an array of spectral filters. The demodulation pixels can possess an intrinsic wavelength-dependent sensitivity, wherein the intrinsic wavelength-dependent sensitivity can be offset by an intensity balancing micro-lens array in some cases. In some cases, the intrinsic wavelength-dependent sensitivity can be offset by a combined filter array, while in other cases the intrinsic wavelength-dependent sensitivity can be offset by an intensity balancing filter array. Still in other cases, the demodulation pixels can be operable in such as to offset the intrinsic wavelength-dependent sensitivity. 1. An optoelectronic module operable to collect distance data and spectral data via the same demodulation pixel array , the optoelectronic module comprising:a plurality of demodulation pixels, and a plurality of respective spectral filters each disposed to respectively transmit a particular wavelength or range of wavelengths of electromagnetic radiation to a respective demodulation pixel among the plurality of demodulation pixels;an emitter operable to generate modulated electromagnetic radiation having a particular modulation frequency and a particular emission wavelength or range of emission wavelengths; andan optical assembly including a plurality of optical elements mounted within an optical element housing, the optical assembly having a focal-length wherein the optical assembly is aligned with the plurality of demodulation pixels and separated from the plurality of demodulation pixels by the focal-length.2. The optoelectronic module of further comprising an auxiliary spectral filter claim 1 , the auxiliary spectral filter being disposed to transmit the particular emission wavelength or range of emission wavelengths of electromagnetic radiation generated by the emitter.3. The optoelectronic module of claim 2 , wherein the particular emission wavelength or ...

Optical sensors

An optical sensor includes an array of pixels configured to convert photons into electrons for forming an image. A tunable filter assembly is optically connected to the array of pixels for passing an adjustable bandwidth of photons to the array of pixels. The tunable filter assembly includes a first mirror defining an optical axis and a second mirror spaced apart from the first mirror along the optical axis. A first electrode is mechanically connected to the first mirror and a second electrode is fixed relative to the second mirror. The first and second electrodes are positioned relative to one another to adjust the position of the first mirror with respect to the second mirror when a voltage is applied across the first and second electrodes to tune the spectral bands being passed through the filter assembly to the array of pixels.

IMAGING DEVICE

Provided is an imaging device () having: a front optical system () that transmits light from an object; a spectral filter array () that transmits light from the front optical system () via a plurality of spectral filters; a small lens array () that transmits the light from the plurality of spectral filters via a plurality of small lenses respectively, and forms a plurality of object images; a picture element () that captures the plurality of object images respectively; and an image processor () that determines two-dimensional spectral information on the object images based on image signals output from the picture element (). The front optical system () is configured to transmit the light from the focused object to collimate the light into a parallel luminous flux. 1. An imaging device , comprising:a front optical system that transmits light from an object;an optical element array that is constituted by a plurality of optical elements, which is two-dimensionally arrayed along a plane perpendicular to an optical axis, and passes the light from the front optical system via the plurality of optical elements;a small lens array that is constituted by a plurality of small lenses, which is two-dimensionally arrayed along a plane perpendicular to the optical axis and has positive refractive power, that transmits the light from the plurality of optical elements via the plurality of small lenses respectively, and that forms a plurality of object images;a picture element that has an imaging plane on focal planes of the plurality of small lenses, and captures the plurality of object images respectively; andan image processor that determines information on the object images according to optical characteristics of the optical elements, based on image signals output from the picture element,the front optical system transmitting the light from the focused object to collimate the light into a parallel luminous flux.214-. (canceled) The present invention relates to an imaging device ...

INTEGRATED CIRCUIT FOR SPECTRAL IMAGING SYSTEM

An integrated circuit for an imaging system is disclosed. In one aspect, an integrated circuit has an array of optical sensors, an array of optical filters integrated with the sensors and configured to pass a band of wavelengths onto one or more of the sensors, and read out circuitry to read out pixel values from the sensors to represent an image. Different ones of the optical filters are configured to have a different thickness, to pass different bands of wavelengths by means of interference, and to allow detection of a spectrum of wavelengths. The read out circuitry can enable multiple pixels under one optical filter to be read out in parallel. The thicknesses may vary non-monotonically across the array. The read out, or later image processing, may involve selection or interpolation between wavelengths, to carry out spectral sampling or shifting, to compensate for thickness errors. 1. (canceled)2. A sensor system , comprising:a plurality of optical sensors arranged on an integrated circuit;a plurality of Fabry-Perot filters arranged in an array on the optical sensors;a collimator arranged on the optical sensors;one or more rejection filters arranged on the optical sensors, wherein the Fabry-Perot filters, the collimator and the one or more rejection filters are configured as a layer proximate to the optical sensors;a memory, wherein the memory is configured to store calibration data associated with the sensor system; andone or more processors operably connected to the optical sensors, wherein the one or more processors are operable to:process an output from each one of the optical sensors using a calibration formula of a plurality of calibration formulas to produce a plurality of wavelengths, wherein each of the calibration formulas uses calibration data stored in the memory, and wherein the wavelengths together form a target range of wavelengths.3. The sensor system of claim 2 , wherein the collimator includes one or more lenses configured to reduce an angle of ...

Recovering spectral shape from spatial output

A method is performed for estimating the optical spectrum of a light beam. The method includes: projecting the light beam onto distinct spatial areas of a spectrometer, wherein each spatial area receives a different filtered version of the optical spectrum; detecting a characteristic of the projected light beam at each of the distinct spatial areas of the spectrometer; receiving a two-dimensional matrix in which each entry of the matrix provides a relationship between one or more spatial areas and each spectral feature, wherein the two-dimensional matrix is related to the input-output relationship of the spectrometer; and estimating the optical spectrum of the light beam based on an analysis that uses both the detected light beam characteristics and the received two-dimensional matrix.

INTEGRATED CIRCUIT FOR SPECTRAL IMAGING SYSTEM

An integrated circuit for an imaging system is disclosed. In one aspect, an integrated circuit has an array of optical sensors, an array of optical filters integrated with the sensors and configured to pass a band of wavelengths onto one or more of the sensors, and read out circuitry to read out pixel values from the sensors to represent an image. Different ones of the optical filters are configured to have a different thickness, to pass different bands of wavelengths by means of interference, and to allow detection of a spectrum of wavelengths. The read out circuitry can enable multiple pixels under one optical filter to be read out in parallel. The thicknesses may vary non-monotonically across the array. The read out, or later image processing, may involve selection or interpolation between wavelengths, to carry out spectral sampling or shifting, to compensate for thickness errors. 1an array of optical sensors;an array of optical filters each configured to pass a band of wavelengths onto one or more of the sensors, the array of optical filters being integrated with the array of sensors; andread out circuitry to read out pixel values from the array of sensors to represent an image, different ones of the optical filters being configured to have a different thickness, to pass different bands of wavelengths by interference, and to allow detection of a spectrum of wavelengths, at least some of the sensors being arranged in a group under the same one of the optical filters, and the read out circuitry for that group comprising two or more output circuits each coupled to different ones of the sensors of that group, so that multiple pixels of the group can be read out in parallel over the output circuits.. An integrated circuit for an imaging system, the integrated circuit comprising: This application is a continuation of U.S. patent application Ser. No. 15/059,715, filed Mar. 3, 2016, which is a divisional of U.S. patent application Ser. No. 13/482,860, filed May 29, 2012 ...

Multispectral sensor response balancing

An optical filter may include a substrate. The optical filter may include a first mirror. The optical filter may include a second mirror. The optical filter may include a spacer. The first mirror, the second mirror, and the spacer may form a plurality of component filters. A first component filter, of the plurality of component filters, may be associated with a first cross-sectional area and a second component filter, of the plurality of component filters, is associated with a second cross-sectional area. The first cross-sectional area and the second cross-sectional area may be configured to response balance the first component filter and the second component filter.

Cmos image sensor including infrared pixels having improved spectral properties, and method of manufacturing same

The present invention relates to a CMOS image sensor including an infrared pixel with enhanced spectral characteristics in which a stepped portion is formed between color filters of RGB pixels and a filter of an infrared pixel, and a manufacturing method thereof. A stepped portion is formed between color filters and an infrared filter according to respective pixels and the thicknesses of the filters are arbitrarily adjusted regardless of the characteristics of material in the formation of the color filters and the infrared filter, so that crosstalk characteristics are improved.

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.

METHOD AND APPARATUS FOR LINEAR VARIABLE BANDPASS FILTER ARRAY OPTICAL SPECTROMETER

An apparatus and method for a linear variable bandpass filter spectrometer with a wide spectral range is disclosed. More specifically, the present invention is comprised of a two-dimensional photodetector array optically coupled to two or more linear variable bandpass filters with different spectral ranges or two stacked filters with the same spectral ranges. 1. A spectrometer comprising:a segmented linear variable bandpass filter (“LVBF”) having a plurality of segments each with a different spectral range, the segments providing the spectrometer with a composite spectral range that is longer than each spectral range of the segments; andan optical detector array located to detect optical radiation passing through the LVBF.2. The spectrometer of claim 1 , wherein the segments have overlapping spectral ranges and the composite spectral range is continuous.3. The spectrometer of claim 1 , wherein the segments have non-overlapping spectral ranges and the composite spectral range is discontinuous.4. The spectrometer of claim 1 , wherein the segments are arranged in a 2-dimensional manner such that there are disparate wavelengths associated with a significant portion of the optical detector array.5. The spectrometer of claim 1 , wherein the segments are bonded together with a transparent adhesive or with an opaque adhesive.6. The spectrometer of claim 1 , wherein the segments are separated with an air gap claim 1 , a vacuum gap claim 1 , or an index matching fluid.7. The spectrometer of claim 1 , comprising a further LVBF stacked on the LVBF.8. The spectrometer of claim 7 , wherein the LVBF and further LVBF each have a peak transmission wavelength and the LVBF and further LVBF are misaligned to offset their peak transmission wavelengths.9. The spectrometer of claim 1 , comprising baffles located between the segments to block light that is travelling at oblique incident angles towards the segments.10. The spectrometer of claim 1 , comprising a further LVBF arranged side-by ...

SPECTROMETER APPARATUS

A spectrometer includes a substrate; a plurality of light detectors in the substrate; and a plurality of light filters over the plurality of light detectors, each of the plurality of light filters transmitting a different wavelength or reflecting a different wavelength, each of the light filters aligned with a corresponding one of the plurality of light detectors. 1. A spectrometer comprising:a substrate;a plurality of light detectors in the substrate; anda plurality of light filters over the plurality of light detectors, each of the plurality of light filters transmitting a different wavelength or reflecting a different wavelength, each of the light filters aligned with a corresponding one of the plurality of light detectors.2. The spectrometer of claim 1 , wherein the plurality of light filters are configured in an array.3. The spectrometer of claim 1 , wherein the plurality of light filters are configured in a matrix.4. The spectrometer of claim 1 , wherein each of the plurality of light filters comprises an electro-optic material claim 1 , and optical characteristics of each of the plurality of light filters are configured to be adjustable.5. The spectrometer of claim 4 , wherein the optical characteristics of each of the plurality of light filters comprise a wavelength transmitted or reflected by the each of the plurality of light filters.6. The spectrometer of claim 4 , wherein the optical characteristics of each of the plurality of light filters are configured to be adjusted by changing an electrical field applied claim 4 , an electrical voltage applied claim 4 , or by changing a temperature of each of the plurality of light filters.7. The spectrometer of claim 1 , wherein each of the plurality of light filters comprises a plurality of sublayers claim 1 , each of the sublayers having a refractive index claim 1 , wherein there is a step change between refractive indexes of adjacent sublayers.8. The spectrometer of claim 7 , wherein a sublayer of the plurality ...

MULTI-SPECTURAL LIGHT SENSOR

An optoelectronic device is disclosed, comprising: a photodiode array including a plurality of first photodiodes, each first photodiode including a respective n+ region and a respective n-well region; a guide array disposed over the photodiode array, the guide array including a plurality of guide members separated from one another by a layer of light-blocking material, the guide members being aligned with the n+ regions of the first photodiodes, such that each guide member is disposed over a different respective n+ region, and the layer of light-blocking material being aligned with the n-well regions of the first photodiodes; and a filter array disposed over the guide array, the filter array including a plurality of bandpass filters, each bandpass filter being aligned with a different one of the plurality of guide members, each bandpass filter having a different transmission band. 1. An optoelectronic device , comprising:a photodiode array including a plurality of first photodiodes, each first photodiode including a respective n+ region and a respective n-well region;a guide array disposed over the photodiode array, the guide array including a plurality of guide members separated from one another by a layer of light-blocking material, the guide members being aligned with the n+ regions of the first photodiodes, such that each guide member is disposed over a different respective n+ region, and the layer of light-blocking material being aligned with the n-well regions of the first photodiodes; anda filter array disposed over the guide array, the filter array including a plurality of bandpass filters, each bandpass filter being aligned with a different one of the plurality of guide members, each bandpass filter having a different transmission band.2. The optoelectronic device of claim 1 , wherein the layer of light-blocking material includes at least one of a light-reflecting material and a light-absorbing material.3. The optoelectronic device of claim 1 , wherein each ...

OPTICAL FILTER AND SPECTROMETER

An optical assembly is disclosed including two laterally variable bandpass optical filters stacked at a fixed distance from each other, so that the upstream filter functions as a spatial filter for the downstream filter. The lateral displacement may cause a suppression of the oblique beam when transmission passbands at impinging locations of the oblique beam onto the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. The optical assembly may be coupled via a variety of optical conduits or optical fibers for spectroscopic measurements of a flowing sample. 132-. (canceled)33. An assembly comprising:a filter comprising a two-dimensional array of optical filter segments; anda circular polarizer, disposed in an optical path associated with the filter, for suppressing light reflected from the filter.34. The assembly of claim 33 , further comprising: 'wherein the optical path is between the filter and the additional filter.', 'an additional filter,'}35. The assembly of claim 33 , wherein the filter is a bandpass optical filter.36. The assembly of claim 35 , wherein the bandpass optical filter is a laterally variable bandpass optical filter.37. The assembly of claim 33 , wherein the two-dimensional array includes four one-dimensional arrays arranged side by side.38. The assembly of claim 33 ,wherein the two-dimensional array includes a plurality of one-dimensional arrays, andwherein each one-dimensional array, of the plurality of one-dimensional arrays, has a transmission center wavelength unique to the two-dimensional array.39. The assembly of claim 33 ,wherein the two-dimensional array includes a first plurality of one-dimensional arrays arranged side by side in a first direction,wherein the assembly further includes an additional filter that includes a different two-dimensional array, andwherein the different two-dimensional array includes a second plurality of one-dimensional arrays arranged side by ...

WIDE-ANGLE COMPUTATIONAL IMAGING SPECTROSCOPY METHOD AND APPARATUS

A system for computational imaging spectroscopy to provide compact and lightweight design, as well as large field of view of an object to be captured. The system includes imaging components, and computational device. The imaging components includes lens assembly, a fixed or variable-diameter aperture, spectral filter array and imaging sensor. The lens assembly provides wide angle of view, image-side telecentricity, and further may correct for longitudinal chromatic aberrations. The lens assembly may not provide correction of lateral chromatic aberrations. Furthermore, the lens assembly provides image-space telecentricity so as to chief rays are incident perpendicular to image sensor. The lens assembly may produce different chromatic aberrations pattern for each wavelength within the spectral range of interest. The pass-band nanofilter array is configured to filter a plurality of specific bands of light reflected from the imaged object and further produces a plurality of spatio-spectral samples of the imaged object projected onto the photosensitive pixels of imaging sensor. The computational device reconstructs complete spectral cube within the spectral range of interest, and further enables the computation of object reflectance at each pixel of the captured image from the plurality of spatio-spectral samples registered by the imaging sensor. 1. An imaging system for computational imaging spectroscopy of light reflected from an object to be captured , the imaging system configured to provide compact and lightweight design , and further to provide a large field of view of an object , the system comprising:a plurality of imaging components to capture a plurality of rays of light reflected by an imaged object, the plurality of imaging components comprising,a lens assembly configured to provide a wide-angle of view, an image- side telecentricity, such that chief rays of the plurality of rays of light are incident perpendicular to an image plane, at an expense of a ...

SINGLE-SENSOR HYPERSPECTRAL IMAGING DEVICE

The present disclosure generally relates to hyperspectral spectroscopy, and in particular, to systems, methods and devices enabling a single-sensor hyperspectral imaging device. Hyperspectral (also known as “multispectral”) spectroscopy is an imaging technique that integrates multiples images of an object resolved at different narrow spectral bands (i.e., narrow ranges of wavelengths) into a single data structure, referred to as a three-dimensional hyperspectral data cube. Data provided by hyperspectral spectroscopy allow for the identification of individual components of a complex composition through the recognition of spectral signatures of individual components within the three-dimensional hyperspectral data cube. 114-. (canceled)15. A computer implemented method , comprising: (A) exposing the photo-sensor array to a common exposure of light to concurrently generate a plurality of photo-sensor outputs, wherein each photo-sensor output in the plurality of photo-sensor outputs corresponds to a respective photo-sensor in the plurality of photo-sensors,', '(B) selecting, using the interface module, a plurality of sub-sets of photo-sensor outputs from the plurality of photo-sensor outputs, wherein each sub-set of photo-sensor outputs in the plurality of photo-sensor outputs corresponds to a respective filter-type in the plurality of filter-types;', '(C) generating, using the control module, a plurality of images for a hyperspectral data cube, wherein each respective image in the plurality of images is generated from a corresponding sub-set of photo-sensor outputs in the plurality of sub-sets of photo-sensor outputs; and', '(D) assembling a hyperspectral data cube comprising a plurality of planes, wherein each plane in the plurality of planes corresponds to a respective image in the plurality of images., 'at a hyperspectral imaging device comprising (i) a photo-sensor array including a plurality of photo-sensors, a spectral filter array having a plurality of filter ...

OPTOELECTRONIC DEVICE ARRANGED AS A MULTI-SPECTRAL LIGHT SENSOR HAVING A PHOTODIODE ARRAY WITH ALIGNED LIGHT BLOCKING LAYERS AND N-WELL REGIONS

An optoelectronic device is disclosed, comprising: a photodiode array including a plurality of first photodiodes, each first photodiode including a respective n+ region and a respective n-well region; a guide array disposed over the photodiode array, the guide array including a plurality of guide members separated from one another by a layer of light-blocking material, the guide members being aligned with the n+ regions of the first photodiodes, such that each guide member is disposed over a different respective n+ region, and the layer of light-blocking material being aligned with the n-well regions of the first photodiodes; and a filter array disposed over the guide array, the filter array including a plurality of bandpass filters, each bandpass filter being aligned with a different one of the plurality of guide members, each bandpass filter having a different transmission band. 1. A method for manufacturing an optoelectronic device , comprising:forming a first layer of light-transmissive material over a photodiode array, the photodiode array including a plurality of photodiodes, each photodiode having a respective n-well region;forming a plurality of first trenches in the first layer of light-transmissive material;forming a layer of light-blocking material in the plurality of first trenches;forming a first metal layer over the first layer of light-transmissive material and the layer of light-blocking material;forming a second layer of light-transmissive material over the first metal layer;forming a plurality of second trenches in the second layer of light-transmissive material, each of the second trenches having a different depth;forming a respective second metal layer in each of the plurality of second trenches; andfilling each of the second trenches with a light-transmissive material after the second trench's respective second layer is formed in the second trench.2. The method of claim 1 , further comprising forming processing circuitry for processing one or ...

Method and apparatus of filtering light using a spectrometer enhanced with additional spectral filters with optical analysis of fluorescence and scattered light from particles suspended in a liquid medium using confocal and non confocal illumination and imaging

A system for filtering light using a spectrometer enhanced with spectral filters using an array of independent photodetectors to measure the fluorescent or scattered light signal. A system comprising a light source, an illuminated sample, a light spectrum device, a collimator lens, a plurality of spectral filters each having a varying and selected light transmission spectrum and a plurality of photodetectors wherein each photodetector is oriented to a spectral filter. A scanning cytometer for measuring fluorescence and light scattering from an illuminated portion of the sample comprising a first light source, a scanner scanning in two axes, a fluorescence detector, an objective lens, an optically translucent medium through which a sample may be illuminated and a confocal apparatus positioned distally from the light source and sample and through which light signals from the sample are transmitted to a fluorescence detector.

PROCESSING APPARATUS, IMAGE PICKUP APPARATUS, IMAGE PICKUP SYSTEM, AND PROCESSING METHOD

A processing apparatus combines a plurality of images based on a plurality of object images formed on an imaging plane of an image sensor by a plurality of lens units and to generate a combined image, and includes at least one processor or circuit that serves as an acquisition task configured to acquire information on a center position of each of the plurality of object images on the imaging plane, information on a correspondence relationship between the center position and positions of the plurality of images in the combined image, and conversion information for converting a first coordinate system in the imaging plane into a second coordinate system in the combined image, the conversion information being generated based on a correction function for correcting the plurality of object images, and a processing task configured to generate the combined image using the conversion information. 110-. (canceled)11. A processing apparatus configured to generate a combined image by stacking a plurality of images based on a plurality of object images formed on an imaging plane of an image sensor by a plurality of lens units , the processing apparatus comprising:at least one processor or circuit configured to execute a plurality of tasks including:an acquisition task configured to acquire conversion information for converting a first coordinate system in the imaging plane into a second coordinate system in the combined image, the conversion information being generated based on information on a center position of each of the plurality of object images on the imaging plane, information on a correspondence relationship between the center positions and layer positions of the plurality of images in the combined image, and a correction function for correcting the plurality of object images; anda processing task configured to generate the combined image using the conversion information.12. The processing apparatus according to claim 11 , wherein the acquisition task acquires ...

Computationally Enhanced Low-Performance Infrared Focal Plane Arrays

A method uses inpainting, whereby the ability to optimize the reconstruction of images at high resolution and sensitivity with minimal pixels is hard wired into the IRFPA. By combining several of these systems, or by selecting different pixels in the array to form images of different colors, hyperspectral images and 3-D tomograms can also be obtained with a significantly smaller number of pixels.

Terahertz time-domain spectroscopy system

本发明涉及一种太赫兹时域光谱系统。太赫兹时域光谱系统中，飞秒激光器辐射的飞秒激光经第一光阑准直，再由分束镜将飞秒激光分为泵浦光和探测光。泵浦光经第一光路组件产生太赫兹脉冲；探测光经第一光路组件产生与泵浦光等光程的线偏振探测光，且线偏振探测光和太赫兹脉冲经合束片合束，得到携带太赫兹脉冲信息的待检测光束。同时在探测装置中使用了两块等厚的电光晶体，调节两块电光晶体之间晶轴的夹角，对通过第一电光晶体的探测光的两个分量o光和e光的相位延迟有相应的相位补偿，从而实现对强太赫兹脉冲的线性探测，提升了测量精度。

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>

Imaging device, imaging method, and program

本技術は、適切な露光制御を行い、所望とされる被写体を適切に撮像することができるようにする撮像装置、撮像方法、並びにプログラムに関する。分光特性が異なる複数の画素を含む撮像部と、測定対象の種類を特定する特定情報に応じて、前記複数の画素に対する露光の制御に関する情報を設定する露光制御部とを備える。または分光特性が異なる複数の画素を含む撮像部と、測定対象に関する分光特性に基づく前記複数の画素の各々の出力予測値に基づいて、前記複数の画素に対する露光の制御に関する情報を設定する露光制御部とを備える。本技術は、例えば、植生をセンシングする撮像装置に適用できる。 The present technology relates to an imaging device, an imaging method, and a program that perform appropriate exposure control and can appropriately capture a desired subject. An imaging unit including a plurality of pixels having different spectral characteristics, and an exposure control unit that sets information regarding exposure control for the plurality of pixels according to identification information that identifies a type of a measurement target. Alternatively, an exposure control that sets information related to exposure control for the plurality of pixels based on an imaging unit including a plurality of pixels having different spectral characteristics, and an output predicted value of each of the plurality of pixels based on the spectral characteristics related to the measurement target. And a section. The present technology can be applied to, for example, an imaging device that senses vegetation.

Spectrometer

개시된 분광기는, 광원에서 출력된 빛에 의해 타겟에서 산란된 산란 빛을 펴행 광속으로 정렬시키는 집광기나, 산란 빛의 각도를 제한하는 빔블록를 포함하며, 집광기나 빔블록을 경유한 산란 빛을 필터 어레이 및 검출기를 통해 검출함으로써, 분광특성을 유지한채로 펜타입이나 평판형태로 소형화할 수 있다. The disclosed spectrograph includes a concentrator for aligning light scattered from a target by light output from a light source into a straight beam, and a beam block for limiting the angle of the scattered light, and scattering light passing through the concentrator or beam block is filtered into a filter array. And by detecting through a detector, it can be miniaturized into a pen type or flat plate type while maintaining spectral characteristics.

Spectrometer and spectral measurement method using the same

公开了一种光谱仪，其设置有：第一单位光谱滤波器，其用于吸收或反射目标物体的光谱的部分波长带中的入射光；第二单位光谱滤波器，其用于吸收或反射与所述部分波长带不同的波长带中的光；第一光检测器，其用于检测通过第一单位光谱滤波器的第一光谱；第二光检测器，其用于检测通过第二单位光谱滤波器的第二光谱；以及处理单元，其用于根据第一光检测器和第二光检测器检测到的光谱执行目标物体的入射光谱的重构功能。

Single-capture spectrum measurement method and device

本发明公开了一种单次捕捉光谱测量方法，将待测光信号分为M路并令其一一对应地通过M个相互之间的光谱传输函数具有低相关性的光谱整形单元，M为远小于所述光谱测量方法的测量精度N的正整数；然后用M个光电探测器对这M个光谱整形单元输出的光信号进行一一对应地光电探测，最后计算出待测光信号的光谱。本发明还公开了一种单次捕捉光谱测量装置。相比现有技术，本发明只需要一次测量即可获得待测光谱，且在保持极高光谱分辨精度的同时，结构得到大幅简化，所需的部件数量极大降低，更有利于实现片上集成。

Optical filter and spectrometer including the optical filter

광 필터 및 이를 포함하는 분광기가 개시된다. 개시된 광 필터는 서로 다른 중심 파장들을 가지는 복수의 대역 필터 유닛을 포함하며, 복수의 대역 필터 유닛 각각은, 캐비티층과, 캐비티층의 상면 및 하면에 각각 마련되는 반사층을 포함한다. 여기서, 캐비티층은 λ/n (여기서, λ는 상기 대역 필터 유닛의 중심 파장, n은 상기 캐비티층의 유효 굴절률(effective refractive index)) 보다 큰 두께를 가지며, 반사층은 서로 다른 굴절률을 가지는 3개 이상의 물질층들을 포함한다.

Raman signal measuring method and apparatus, and biometric information analyzing apparatus including the Raman signal measuring apparatus

라만 신호 측정 장치 및 방법에 따르면, 피검체에 여기광(exciting light)을 조사할 때, 라만 산란광이 발생하는 타임 스케일(time scale)과 형광이 발생하는 타임 스케일이 다름을 이용하여, 피검체로부터 여기광에 의한 형광이 발생하기 전에, 피검체로부터 산란된 광을 검출한다. 이에 따라 형광 배경 신호가 최소화된 라만 신호를 획득할 수 있다.

Solid-state imaging element and imaging system

本发明涉及固态摄像元件和摄像系统，其中能够实现具有高灵敏性和高波长分辨率的可见光/近红外光分光/摄像器件，并且利用所述固态摄像元件和摄像系统能够使具有高空间分辨率的二维光谱制图成为可能。固体摄像元件具有二维像素阵列和面对着二维像素阵列的像素区域布置的多种类型的滤波器，这些滤波器具有分光功能并具有比待检测的波长短的周期性微细图案。各滤色器大于二维像素阵列中的各像素的光电转换元件，并且形成单个单元，在该单元中一种类型的滤波器相对于相邻的多个光电转换元件组而布置。多种类型的滤波器相对于相邻单元组而布置并形成滤波器组，并且布置有N×M个单元（N和M是1以上的整数）以使滤波器组面对二维像素阵列的像素区域。

Visible and infrared dual mode imaging system

一种成像系统包含图像传感器及光学滤波器。所述图像传感器响应于入射光而捕获图像数据。所述光学滤波器对所述光进行滤波且包含双重窗透射光谱。所述双重窗透射光谱包含：第一透射窗，其具有经对准以使可见光通过的第一通带；及第二透射窗，其具有与地球大气中的红外光的吸收带重叠的第二通带。

How to recover spectral shape from spatial output

광 빔의 광학 스펙트럼을 추정하기 위한 방법이 수행된다. 이러한 방법은, 상기 광 빔을 분광계의 별개의 공간 구역 상에 투영하는 단계 - 각각의 공간 구역은 상기 광학 스펙트럼의 상이한 필터링된 버전을 수광함 -; 투영된 광 빔의 특징을 상기 분광계의 별개의 공간 구역 각각에서 검출하는 단계; 각각의 엔트리가 하나 이상의 공간 구역과 각각의 스펙트럼 특성 사이의 관계를 제공하는 2차원 행렬을 수신하는 단계 - 상기 2차원 행렬은 상기 분광계의 입력-출력 관계에 관련됨 -; 및 검출된 광 빔 특징 및 수신된 2차원 행렬 양자 모두를 사용하는 분석에 기반하여, 상기 광 빔의 광학 스펙트럼을 추정하는 단계를 포함한다. A method for estimating an optical spectrum of a light beam is performed. The method comprises: projecting the light beam onto separate spatial regions of a spectrometer, each spatial region receiving a different filtered version of the optical spectrum; detecting features of the projected light beam in each distinct spatial region of the spectrometer; receiving a two-dimensional matrix, each entry providing a relationship between one or more spatial regions and respective spectral properties, wherein the two-dimensional matrix relates to an input-output relationship of the spectrometer; and estimating an optical spectrum of the light beam based on an analysis using both the detected light beam characteristics and the received two-dimensional matrix.

Satellite-borne multi-channel aurora spectral imaging device

本发明公开了一种星载多通道极光光谱成像装置，包括光学镜筒、光学成像系统、阵列干涉滤光片、阵列探测器和信号处理模块，所述光学镜筒设置在光学成像系统的前方，所述阵列干涉滤光片设置在阵列探测器前方紧靠阵列探测器处；所述阵列探测器置于光学成像系统的焦面处；光学镜筒用于安装光学成像系统，还用于消除杂光；光学成像系统用于采集探测目标发出的信号，将其聚焦成像在阵列探测器上；阵列干涉滤光片被划分为不同区域，以透过不同波长的光，实现对极光辐射探测波段的选取；阵列探测器用于测量聚焦在阵列探测器上的极光辐射，并将它转变为电信号；信号处理模块用于读取和放大阵列探测器输出的电信号，并按要求排列成一定格式后输出。

Photodetector, solid-state imaging device, and manufacturing method thereof

光検出装置は、第１波長範囲の波長を有する第１波長光、第２波長範囲の波長を有する第２波長光、・・・および第ｎ波長範囲の波長を有する第ｎ波長光（ｎは整数）を透過させる光学フィルタ（２）と、第１波長光の第１波長光強度、第２波長光の第２波長光強度、・・・および第ｎ波長光の第ｎ波長光強度の少なくとも一つを検出する光センサ（３）と、第１波長光強度、第２波長光強度、・・・および第ｎ波長光強度の少なくとも一つに基づいて、第１波長範囲、第２波長範囲、・・・および第ｎ波長範囲の少なくとも一つ以外の波長範囲の波長を有する光の光強度を推定する解析部（４）とを備え、前記少なくとも一つの波長範囲の波長を有する光の光強度と前記少なくとも一つ以外の波長範囲の波長を有する光の光強度との間には相関関係が有る。 The photodetector includes a first wavelength light having a wavelength in the first wavelength range, a second wavelength light having a wavelength in the second wavelength range,..., And an nth wavelength light having a wavelength in the nth wavelength range (n is An optical filter (2) that transmits an integer), at least a first wavelength light intensity of the first wavelength light, a second wavelength light intensity of the second wavelength light,..., And an nth wavelength light intensity of the nth wavelength light A first wavelength range, a second wavelength range based on at least one of an optical sensor (3) for detecting one and the first wavelength light intensity, the second wavelength light intensity,. ,... And an analyzing unit (4) for estimating the light intensity of light having a wavelength in a wavelength range other than at least one of the nth wavelength ranges, and the light having the wavelengths in the at least one wavelength range Between the intensity and the light intensity of light having a wavelength in a wavelength range other than the at least one Seki relationship is there.

Terminal communicating with advanced imager

Un terminal communiquant comprend une unité centrale, une mémoire, un dispositif d’affichage, un dispositif d’entrée, une caméra opérant dans le visible et un circuit de communication sans fil, un capteur acoustique et un transducteur acoustique, terminal caractérisé en ce qu’il comprend en outre un capteur d'images apte à générer une série d’images de pixels dans un ensemble de bandes spectrales non visibles située au-delà de la gamme de sensibilité spectrale du silicium, ce capteur d'image comprenant une matrice de de cellules photosensibles au rayonnement dans lesdites bandes spectrales non-visible, prévues sur un substrat non-silicium accouplé à un circuit de lecture sur substrat silicium, et un filtre passe-bande définissant l’ensemble desdites bandes spectrales non-visibles interposé sur le trajet du rayonnement. Application notamment à l’imagerie en IR proche à bas coût, embarquée. A communicating terminal comprises a central unit, a memory, a display device, an input device, a camera operating in the visible and a wireless communication circuit, an acoustic sensor and an acoustic transducer, terminal characterized in that 'it further comprises an image sensor capable of generating a series of images of pixels in a set of non-visible spectral bands situated beyond the range of spectral sensitivity of silicon, this image sensor comprising a matrix of cells photosensitive to radiation in said non-visible spectral bands, provided on a non-silicon substrate coupled to a read circuit on a silicon substrate, and a band-pass filter defining all of said non-visible spectral bands interposed on the path radiation. Application in particular to low-cost, on-board near IR imaging.

DEVICE AND METHOD FOR OBSERVING PARTICLES, IN PARTICULAR SUBMICRONIC PARTICLES

L'invention est un dispositif (1) pour réaliser une image d'au moins une particule (6), disposée dans échantillon (7), comportant : - une source de lumière (2), apte à émettre une onde lumineuse (3), dite onde incidente, à une longueur d'onde d'émission (X), selon un axe de propagation (Z), vers l'échantillon ; - un capteur d'image (30) ; - un support (20), disposé entre la source de lumière (2) et le capteur d'image (30), le support définissant un plan de support (Ps), pour recevoir l'échantillon ; le dispositif étant caractérisé en ce que : - le support (20) comporte un réflecteur inférieur, formé d'au moins deux matériaux (21, 22) ayant des indices de réfraction différents, le réflecteur inférieur s'étendant entre le plan de support et le capteur d'image; - le dispositif comporte un réflecteur supérieur, formé d'au moins deux matériaux ayant des indices de réfraction différents (11, 12), le réflecteur supérieur s'étendant entre le plan de support (Ps) et la source de lumière (2) ; - le dispositif comportant un espace libre (8) entre le réflecteur supérieur et le support, l'espace libre étant apte à être occupé par l'échantillon. The invention is a device (1) for producing an image of at least one particle (6), placed in the sample (7), comprising: - a light source (2), capable of emitting a light wave (3) , called incident wave, at an emission wavelength (X), along a propagation axis (Z), towards the sample; - an image sensor (30); - a support (20), arranged between the light source (2) and the image sensor (30), the support defining a support plane (Ps), to receive the sample; the device being characterized in that: - the support (20) comprises a lower reflector, formed of at least two materials (21, 22) having different refractive indices, the lower reflector extending between the support plane and the image sensor; - the device comprises an upper reflector, formed of at least two materials having ...

DEVICE AND METHOD FOR MULTISPECTRAL IMAGING IN THE INFRARED

Selon un aspect, la présente description concerne un dispositif (20) d'imagerie multispectrale dans l'infrarouge adapté pour la détection à au moins une première et une deuxième longueur d'onde de détection. Il comprend une matrice de détection (23) comprenant un ensemble de détecteurs élémentaires (23i) de dimensions prédéterminées formant un champ image de dimensions données; et une optique (22) de formation d'image présentant un nombre d'ouverture (N) et une distance focale (F) donnés, adaptées pour la formation en tout point du champ image d'une tache élémentaire de focalisation recouvrant un ensemble d'au moins deux détecteurs élémentaires juxtaposés. Le dispositif comprend en outre une matrice (24) de filtres élémentaires à résonance de mode guidé métallo-diélectriques , agencée devant la matrice de détection (23) à une distance inférieure à une profondeur de foyer de l'optique (22), les dimensions des filtres élémentaires étant adaptées de telle sorte que chaque tache élémentaire de focalisation formée en chaque point du champ image recouvre au moins deux filtres élémentaires ; et les filtres élémentaires sont optimisés pour la transmission passe bande dans des bandes spectrales centrées sur deux longueurs d'onde centrales différentes, égales à deux desdites longueurs d'onde de détection. In one aspect, the present disclosure is directed to an infrared multispectral imaging device (20) adapted for detection at at least a first and a second detection wavelength. It comprises a detection matrix (23) comprising a set of elementary detectors (23i) of predetermined dimensions forming an image field of given dimensions; and an image forming optic (22) having a given aperture number (N) and focal length (F), adapted for the formation at any point of the image field of an elementary focusing spot covering a set of apertures. at least two elementary detectors juxtaposed. The device further comprises a matrix (24) of metallo- ...

Optical assembly, optical spectrometer assembly, and the method of making optical spectrometer assembly

업스트림 필터가 다운스트림 필터의 공간 필터로서 기능하도록 서로 고정된 거리로 스택되는 2개의 횡방향 가변 대역통과 필터를 포함하는 광학 어셈블리가 개시된다. 횡방향 변위는, 업스트림 및 다운스트림 필터들 상의 사선 빔의 침투 위치들에서 전송 통과대역들이 오버랩하지 않을 때 사선 빔의 억제를 유도할 수 있다. 광검출기 어레이는 다운스트림 필터의 다운스트림에 배치될 수 있다. 광학 어셈블리는 유체 샘플의 스펙트로스코픽 측정들을 위해 다양한 광도관들 또는 광섬유들을 통해 커플링될 수 있다. An optical assembly comprising two transversely variable bandpass filters stacked at a fixed distance from each other such that the upstream filter serves as the spatial filter of the downstream filter is disclosed. Transverse displacement may lead to suppression of the oblique beam when the transmit passbands at the penetration locations of the oblique beam on the upstream and downstream filters do not overlap. A photodetector array may be disposed downstream of the downstream filter. An optical assembly can be coupled through various light conduits or optical fibers for spectroscopic measurements of a fluid sample.