Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 1903. Отображено 100.
17-05-2012 дата публикации

Spectrum measuring apparatus for mover

Номер: US20120123637A1
Автор: Kenichi Kitahama, Masato Endo, Ryuji Funayama, Shinya Kawamata, Yasuhiro Yoshida, Yasukata Yokochi
Принадлежит: Toyota Motor Corp

Disclosed is a mover spectrum measuring apparatus, which is able to discriminate an object being measured more reliably by relieving the influences of an environmental light on photographic data by a spectrum sensor mounted on a mover such as a vehicle. A spectrum sensor capable of measuring wavelength information and optical intensity information is mounted on a vehicle, so that an object being measured around the vehicle is discriminated on the basis of the spectrum data relating to the observation light detected by the spectrum sensor. The mover spectrum measuring apparatus comprises an illumination device for making variable the featuring quantity of at least either the wavelength range of the observation light or the optical intensity of each wavelength, and controls the featuring quantity varying mode by the illumination device through an illumination controller on the basis of the control value according to an environmental element.

Подробнее
Номер записи: 1
26-07-2012 дата публикации

Optical fiber measurement device and measurement method using same

Номер: US20120190034A1
Автор: Hideji Tajima
Принадлежит: UNIVERSAL BIO RESEARCH CO LTD

Disclosed is a highly reliable optical fiber measurement device and measurement method having a simple and compact structure. The device includes a planar liquid holder having a plurality of liquid holding portions arranged along a flat face; a plurality of light receiving optical fibers for transmitting fluorescence generated in the liquid holding portions; a plurality of light emitting optical fibers for transmitting excitation light into the liquid holding portions; a measurement head capable of being positioned in the each liquid holding portion while supporting a plurality of measurement ends having a bundle of one light receiving end of the light receiving optical fibers and one light emitting end of light emitting optical fibers; a light reception selecting element that, by sequentially selecting one by one from plural the light receiving optical fibers and sequentially selecting one by one from plural kinds of wavelength or wavelength bands, sequentially guides the light of the selected wavelength or wavelength band of the fluorescence received by the selected light receiving optical fibers to one photoelectric element; and a photoelectric element for sequentially conducting photoelectric conversion on the guided fluorescence.

Подробнее
Номер записи: 2
18-10-2012 дата публикации

Spectrometer arrangement

Номер: US20120262713A1
Автор: Helmut Becker-Ross, Michael Okruss, Stefan Florek
Принадлежит: Leibniz Institut fuer Analytische Wissenschaften ISAS eV

A spectrometer assembly ( 10 ), comprising an Echelle grating ( 18; 46 ) for dispersing radiation entering the spectrometer assembly ( 10 ) in a main dispersion direction, and a dispersion assembly ( 16; 40 ) for dispersing a parallel radiation bundle generated from the radiation entering the spectrometer assembly in a lateral dispersion direction, is characterized in that the dispersion assembly ( 16; 40 ) is reflective, and the dispersion assembly ( 16; 40 ) is arranged relative to the Echelle grating ( 18; 46 ) in such a way that the parallel radiation bundle is reflected in the direction of the Echelle grating. The Echelle grating ( 18; 46 ) may be arranged in such a way that the dispersed radiation is reflected back to the dispersion assembly ( 16; 40 ).

Подробнее
Номер записи: 3
25-10-2012 дата публикации

Signal processing for optical computing system

Номер: US20120268730A1
Автор: David L. Perkins, Michael L. Myrick, Robert P. Freese, William Soltmann
Принадлежит: Halliburton Energy Services Inc

The present subject matter relates to an apparatus and related method of high-speed analysis of product samples during production of the product. Light is directed to a portion of a product under analysis and reflected from or transmitted through the product toward optical detectors. Signals from the optical detectors are compared to determine characteristics of the product under analysis. Temperature within the monitoring system may be monitored in order to provide compensation for the signals produced by the optical detectors. The products under analysis may be stationary, moved by an inspection point by conveyor or other means, or may be contained within a container, the container including a window portion through which the product illuminating light may pass.

Подробнее
Номер записи: 4
08-11-2012 дата публикации

Fluorescence detecting optical system and multi-channel fluorescence detection apparatus including the same

Номер: US20120280143A1
Автор: Joon-Ho Kim, Kak Namkoong, Kyung-Ho Kim, Won-Seok Chung
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A fluorescence detection optical system detects fluorescence beams with two or more different wavelengths and maintains a focal position through an automatic focusing function. A multi-channel fluorescence detection apparatus includes the fluorescence detection optical system. The fluorescence detection optical system includes an automatic focusing unit which receives light reflected off a microfluidic device and determines a focal point by using an astigmatic method or a knife edge method, and an actuator which adjusts a position of an objective lens according to control of the automatic focusing unit. In addition, the fluorescence detection optical system may include a plurality of dual band pass filters, dichroic devices, etc., which provide light beams emitted from at least two light sources and transfer fluorescence generated from the microfluidic device to a photodetector.

Подробнее
Номер записи: 5
29-11-2012 дата публикации

Universal multidetection system for microplates

Номер: US20120300194A1
Автор: Ben Knight, Ben Norris, Bill Anderson, Brian Ferris, Christopher Many, Dan J. VENDITTI, JR., James Piette, Joe Tobey, Michael Kontorovich, Oleg Zimenkov, Richard N. Sears, Ross Piette, Xavier Amouretti
Принадлежит: BTI Holdings Inc

An apparatus for optically analyzing a sample may include an imaging subsystem that images the sample, one or more analyzing subsystems that analyze the sample, a temperature control subsystem that controls a temperature of the atmosphere within the apparatus, a gas control subsystem that controls a composition of the atmosphere within the apparatus, and a control module that controls the various subsystems of the apparatus.

Подробнее
Номер записи: 6
16-05-2013 дата публикации

Dynamic signal extension in optical detection systems

Номер: US20130119277A1
Автор: Bernhard Schinwald, Josef J. Atzler
Принадлежит: Molecular Devices LLC

Systems and methods for measuring a target in a sample, the target being capable of generating an emitted light in response to an excitation light. In an example system, an excitation light source generates the excitation light along an excitation optical path. An attenuation filter arrangement selectively adds an attenuation filter to the excitation optical path. The attenuation filter attenuates the excitation light by a corresponding attenuation factor. The excitation light exits the attenuation filter arrangement along the excitation optical path to illuminate the sample. A light energy detector receives the emitted light generated in response to the excitation light, and outputs a measured signal level corresponding to an emitted light level. If the light energy detector indicates an overflow, signal measurement is repeated with attenuation filters of increasing attenuation factors until the measured signal level does not overflow.

Подробнее
Номер записи: 7
30-05-2013 дата публикации

Opto-electronic system for radiometric measurements

Номер: US20130135465A1
Автор: Carlo Ferrigno, Donato Vincenzi, Massimiliano Occhiali, Stefano Baricordi
Принадлежит: Individual

An electro-optical system for the carrying out of radiometric measurements of luminous sources comprises an instrument equipped with: a sensor comprising a pixel matrix, an optical system for creating the image of an external luminous source on the sensitive surface of the sensor, an optical bandpass filter, interposed between the sensor and the external luminous source for separating the spectrum of radiation emitted by the external luminous source into two portions: the first portion having a relatively limited bandwidth is transmitted toward the sensor while the second does not reach the sensor; moreover, the system comprises a computer which, starting from the plurality of monochromatic images recorded from the sensor, allows the calculating both of the angular distribution of the incident luminous radiation on the instrument and the irradiance on the normal plane in the direction from which the luminous radiation originates.

Подробнее
Номер записи: 8
04-07-2013 дата публикации

ZERO ORDER SENSING TO INCREASE LIGHT COLLECTION IN A SPECTROMETER

Номер: US20130169959A1
Автор: Guenther Brett
Принадлежит:

A system for increasing light collection in a spectrometer includes a detector and a processor. The detector detects zero order diffraction light from a diffractive element of a spectrometer and measures an intensity of the zero order diffraction light. A processor continuously receives the intensity measurement from the detector and automatically adjusts a parameter of the spectrometer until a maximum intensity measurement is received from the detector. A parameter of the spectrometer can include an optical path between an aperture of the spectrometer and a sample, an exposure time of the spectrometer, or an intensity of a light source for the spectrometer. The optical path between an aperture of the spectrometer and a sample can be adjusted by moving an objective lens of the spectrometer with respect to the sample or moving the sample with respect to the spectrometer. 1. A system for increasing light collection in a spectrometer , comprising:a detector that detects zero order diffraction light from a diffractive element of a spectrometer and measures an intensity of the zero order diffraction light; anda processor in communication with the detector and the spectrometer that continuously receives the intensity measurement from the detector and automatically adjusts a parameter of the spectrometer until a maximum intensity measurement is received from the detector.2. The system of claim 1 , wherein the parameter of the spectrometer comprises an optical path between an aperture of the spectrometer and a sample.3. The system of claim 2 , wherein the processor adjusts the optical path between an aperture of the spectrometer and the sample by moving an objective lens of the spectrometer with respect to the sample.4. The system of claim 2 , wherein the processor adjusts the optical path between an aperture of the spectrometer and the sample by moving the sample with respect to the spectrometer.5. The system of claim 1 , wherein the parameter of the spectrometer comprises ...

Подробнее
Номер записи: 9
29-08-2013 дата публикации

Method of correcting tilt in spectroscope

Номер: US20130222809A1
Автор: Yoshihiro Hara
Принадлежит: KONICA MINOLTA INC

In a rough adjustment step before spectroscopic analysis, a moving mirror is moved (# 1 ), the outputs of division elements when the interfering light of reflected light off the moving mirror and reflected light off a fixed mirror is received by a four-division sensor are totalized and variations in the contrast of the interfering light are detected (# 12 ), and, based on the variations in the contrast, the amount of relative tilt of the two reflected light beams is detected (# 13 ), and the initial tilt error is corrected (# 14 ). In a fine adjustment step before the spectroscopic analysis, based on a phase difference between the outputs of the division elements when the interfering light is received by the four-division sensor, the relative tilt amount of and the tilt direction of the two reflected light beams are detected, and the initial tilt error is corrected.

Подробнее
Номер записи: 10
06-01-2022 дата публикации

Differential Interference Imaging System Capable of Rapidly Changing Shear Direction and Amount

Номер: US20220003607A1
Автор: Liu Shengde, Lv Xiaoxu, Ning Qinwen, Zhong Liyun, Zhou Chengxin
Принадлежит:

A differential interference imaging system capable of rapidly changing shear direction and amount includes: a light source (), a filter (), a polarizer (), a sample stage (), an infinite imaging microobjective (), a tube lens (), a shear component, an analyzer (), and an image sensor (). After the light intensity and a polarization direction is adjusted, the linearly polarized light passes through a transparent sample, to be collected by the infinite imaging microobjective () and to implement imaging through the tube lens (). An imaging beam is divided into two linearly polarized light fields which are perpendicular to each other in the polarization directions and have tiny shear amount, then they are further combined into an interference light filed by the analyzer () to form a differential interference image in the image sensor (). The system may be flexibly assembled, is simple in structure and easy to implement. 1. A differential interference imaging system capable of rapidly changing shear direction and amount , comprising: a light source , a filter , a polarizer , a sample stage , an infinite imaging microobjective , a tube lens , a shear component , an analyzer , and an image sensor , wherein after light intensity of linearly polarized light emitted from the light source is adjusted through the filter and a polarization direction of the linearly polarized light is adjusted through the polarizer , the linearly polarized light passes through a transparent sample on the sample stage , to be collected by the infinite imaging microobjective and to implement imaging through the tube lens; an imaging beam is divided , by the shear component , into two linearly polarized light fields which are perpendicular to each other in the polarization directions and have tiny shear amount; the two linearly polarized light fields are further combined into an interference light filed by the analyzer , so that a differential interference image is formed in the image sensor.2. The ...

Подробнее
Номер записи: 11
02-01-2020 дата публикации

ENCLOSED BENCHTOP RAMAN SPECTROMETRY DEVICE

Номер: US20200003617A1
Автор: MARQUARDT Brian James, VAN VUREN John Scott
Принадлежит:

An enclosed benchtop analytical device, as well as systems, processes, and techniques related thereto are disclosed. A benchtop analytical device can include an enclosure enclosing a probe and a sample. A compliance component can determine satisfaction of one or more compliance rules, such as a compliance rule relating to an enclosure being in an operable configuration based on a lid of the enclosure being closed.. If the compliance rule(s) is determined to be satisfied, the compliance component may enable the release of optical energy for interrogation of the sample via the probe. In some embodiments, the enclosure can enclose a sample plate that can be used to conveniently and accurately retain a sample in a suitable position within the enclosure. 1. (canceled)2. A benchtop analytical device , comprising: a probe mounted on the body of the enclosure to channel optical energy as part of performing optical spectroscopy of a sample; and', 'a sample presentation component to receive the sample;, 'an enclosure having a lid and a body, the lid being movable, relative to the body, between an opened position and a closed position, wherein, when the lid is in the closed position, the enclosure enclosesan imaging component to enable viewing of an interior of the enclosure while the lid is in the closed position; anda control mechanism that is usable by an operator, while the lid is in the closed position, to adjust a position of the sample presentation component relative to the probe.3. The benchtop analytical device of claim 2 , wherein the imaging component is configured to image in the visible spectrum.4. The benchtop analytical device of claim 2 , wherein the imaging component is configured to image in a spectrum outside of the visible spectrum.5. The benchtop analytical device of claim 4 , wherein the spectrum outside of the visible spectrum comprises at least one of the infrared (IR) spectrum or the ultraviolet (UV) spectrum.6. The benchtop analytical device of claim ...

Подробнее
Номер записи: 12
03-01-2019 дата публикации

REFERENCE LIGHT ADJUSTMENT METHOD FOR SPECTROMETER BASED MEASUREMENT OR CONTROL SYSTEMS

Номер: US20190003886A1
Автор: Chandler Nelson, Clendinning Kirk
Принадлежит:

A method to adjust the energy transmitted from a multiplicity of light sources to provide an adequate reference for spectral measurement or control using a multichannel feedback adjustment algorithm that compensates for the interactions between adjacent spectral ranges and sets reference light sources for optimal system performance using a normalized energy value for each spectral range is disclosed. 1first, at the beginning of each control or measurement period, said adjustable multiple spectral channel reference light source's light intensity being set for optimal system performance and said spectrometer measuring light intensity across said spectrometer's entire spectral range;then said spectrometer measuring each spectral channel of said adjustable multiple spectral channel reference light source's quantities of normalized light energy and integrating said normalized light energy measured into intensity counts for each spectral channel contained in said adjustable multiple spectral channel reference light source;then calculating adjacent channel spectral intensity adjustments;then sending said adjacent channel spectral intensity adjustments to said adjustable multiple spectral channel reference light source;then adjusting each of said spectral channels of said adjustable multiple spectral channel reference light source; and,then repeating said channel measuring, said spectral intensity adjustment calculating, said sending of calculated adjustments, and said adjusting steps one or more times until said intensity counts for each spectral channel contained in said adjustable multiple spectral channel reference light source are similar.. A method for adjusting an adjustable multiple spectral channel reference light source prior to starting a control or measurement period by implementing a feedback loop formed by a spectrometer, a light delivery optical system, a system under test, and an adjustable multiple spectral channel reference light source comprising: The ...

Подробнее
Номер записи: 13
03-01-2019 дата публикации

Systems and methods for monitoring remote installations

Номер: US20190003984A1
Автор: Margarita Sergeyevna Odintsova, Robert Timothy Kester
Принадлежит: Rebellion Photonics Inc

A system for monitoring a petrochemical installation is disclosed. The system can include an optical imaging system comprising an array of optical detectors. The system can comprise processing electronics configured to process image data detected by the optical imaging system. The processing electronics can be configured to detect a target species based at least in part on the processed image data. The processing electronics can further be configured to, based on a detected amount of the target species, transmit an alarm notification to an external computing device over a communications network indicating that the target species has been detected at the petrochemical installation.

Подробнее
Номер записи: 14
03-02-2022 дата публикации

HYPERSPECTRAL IMAGER METHOD AND APPARATUS

Номер: US20220034717A1
Автор: Chlingaryan Anna, Lowe Alex, Melkumyan Arman, Murphy Richard J., Nguyen Dai Bang, Scheding Steven, WISHART Stuart
Принадлежит:

A compact hyperspectral imager adapted to operate in harsh environments and to conduct post acquisition signal processing to provide automated and improved hyperspectral processing results is disclosed. The processing includes luminance and brightness processing of captured hyperspectral images, hyperspectral image classification and inverse rendering to produce luminance invariance image processing. 1. A hyperspectral imager for imaging external environments , the imager including:an optical line scanner unit adapted to perform line scans of a mining environment via rotation thereof;an environmental enclosure surrounding the optical line scanner unit providing a first degree of temperature and dust isolation from the environment, the enclosure mounted on a rotatable platform;a rotatable platform attached to the environmental enclosure, adapted to rotate the environmental enclosure and optical line scanner unit under the control of an electronic control system;a thermo-electric cooler unit attached to the environmental enclosure for cooling the enclosure, thereby maintaining the enclosure at a substantially stable temperature during operations; andan electronic control system for controlling the thermo electric cooler unit, and the optical line scanner unit, and the rotatable platform for the capture of hyperspectral images by said imager.2. A hyperspectral imager as claimed in further including a desiccant port and holding bay for holding a desiccant for providing humidity control to said enclosure.3. A hyperspectral imager as claimed in wherein said thermo electric cooler unit is mounted on top of the enclosure.4. A hyperspectral imager as claimed in wherein said rotatable platform is driven by a cable chain to manage cable movement and prevent breakage.5. A hyperspectral imager as claimed in wherein said environmental enclosure includes at least one optical aperture for projection of an optical lens of the optical line scanner unit.610.-. (canceled)11. A method ...

Подробнее
Номер записи: 15
16-01-2020 дата публикации

Imaging Spectrograph Utilizing the Zero Order of the Diffraction Grating

Номер: US20200018649A1
Автор: Kapitán Josef, Kyvalsky Jiri, Pochyly Antonin, Vacula Daniel, Vlcek Jan, Zelinka Frantisek
Принадлежит:

An imaging spectrograph utilizing a zero order of a diffraction grating includes an entrance aperture, a collimating optical system, a primary diffraction grating, a primary focusing optical system, a primary radiation detector, a secondary diffraction grating, a secondary focusing optical system, and a secondary radiation detector. The secondary diffraction grating is arranged in a location in the direction of radiation which has at least one of: (a) passed through the zero order of the primary diffraction grating, and (b) has reflected from the zero order of the primary diffraction grating and is directed outside the primary focusing optical system. 14-. (canceled)5. An imaging spectrograph utilizing a zero order of a diffraction grating , the imaging spectrograph comprising:an entrance aperture;a collimating optical system arranged behind the entrance aperture in a direction of radiation;a primary diffraction grating arranged behind the collimating optical system and associated with a primary focusing optical system;a primary radiation detector arranged behind the primary focusing optical system;a secondary diffraction grating associated with a secondary focusing optical system; anda secondary radiation detector arranged behind the secondary focusing optical system;the secondary diffraction grating being arranged in a location in the direction of radiation which has at least one of: (a) passed through the zero order of the primary diffraction grating, and (b) has reflected from the zero order of the primary diffraction grating and is directed outside the primary focusing optical system.6. The imaging spectrograph according to claim 5 , wherein at least one additional diffraction grating is arranged in at least one of the direction of radiation which: (a) has passed through the secondary diffraction grating in the zero order claim 5 , and (b) has been reflected from the secondary diffraction grating in the zero order and is directed outside the secondary focusing ...

Подробнее
Номер записи: 16
25-01-2018 дата публикации

TUNABLE ELECTRO-OPTIC FILTER STACK

Номер: US20180024004A1
Автор: BELLINGHAM ALYSSA, Fontecchio Adam K., SHRIYAN SAMEET K.
Принадлежит:

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

Подробнее
Номер записи: 17
10-02-2022 дата публикации

OPTICAL PROCESS SENSOR, MEASURING HEAD, MEASURING SYSTEM COMPRISING THE TWO AND METHOD FOR CALIBRATION AND/OR VALIDATION

Номер: US20220042846A1
Автор: Mannhardt Joachim, Meyer Hans
Принадлежит:

An optical process sensor for measuring at least one measured variable of a medium in a container includes: a housing; a light source in the housing for emitting transmission light; a light detector in the housing for receiving reception light; and an interface including a first mechanical section, which is an integrated part of the housing, and a first optical section having a first path and a first light guide, wherein the first light guide is configured such that transmission light is guided from the light source into the first path via the first light guide and decouples transmission light from the housing, and having a second path and a second light guide, wherein the second light guide is configured such that reception light is coupled into the interior of the housing and guided from the second path to the light detector via the second light guide. 1. An optical process sensor for measuring at least one measured variable of a medium , the sensor comprising:a housing defining an interior;a light source disposed in the housing and configured to emit transmission light;a light detector disposed in the housing and configured to receive reception light; and a first path and a first light guide, wherein the first light guide is configured such that the transmission light is guided from the light source into the first path via the first light guide and such that the transmission light is decoupled from the housing; and', 'a second path and a second light guide, wherein the second light guide is configured such that the reception light is coupled into the interior of the housing and guided from the second path to the light detector via the second light guide., 'a first optical/mechanical interface comprising a first mechanical section, which is configured as an integrated part of the housing, and a first optical section extending from the housing, the first optical section comprising2. The optical process sensor of claim 1 , wherein the optical process sensor is a ...

Подробнее
Номер записи: 18
23-01-2020 дата публикации

SENSOR FOR HYPERSPECTRAL IMAGING BASED ON A METASURFACE-INTEGRATED LIGHT DETECTOR ARRAY

Номер: US20200025610A1
Автор: Chandrasekar Rohith, Chubykin Alexander, Lagoutchev Alexei, Shalaev Vladimir, Shaltout Amr
Принадлежит: PURDUE RESEARCH FOUNDATION

A spectroscopic microscope device, comprising at least one array of metasurfaces, and at least one CCD array integrated with the array of metasurfaces. The metasurfaces in the array are configured to separately direct LCP an RCP components of light incident on the metasurface to separate pixels in the CCD array. 1. A spectroscopic microscope device , comprising:a. at least one array of metasurfaces; andb. at least one CCD array integrated with the array of metasurfaces, wherein each metasurface of the metasurface array is configured to direct LCP components of light incident on the metasurface to a first pixel in the CCD array and RCP components of light indicent on the meta surface to a second pixel in the CCD array.2. The device of claim 1 , wherein the array of metasurfaces is sub-millimeter in thickness.3. The device of claim 1 , wherein the device is configured to build spectrally resolved images for colorimetry.4. The device of claim 1 , wherein the device is configured to build spectrally resolved images for Raman spectroscopy.5. The device of claim 1 , wherein the device is configured to build spectrally resolved images for Circular Dischroism spectroscopy.6. The device according to claim 1 , wherein an array of metasurfaces is integrated with a CCD array to build a spectrally resolved microscope image.7. The device according to claim 1 , wherein the metasurface array is fabricated on top of a CCD array.8. The device according to claim 1 , wherein the metasurface is adjustable to work within a plurality of wavelengths including ultraviolet claim 1 , visible claim 1 , and infrared.9. The device according to claim 1 , wherein the device is configured to generate spectroscopically resolved images from samples observed under microscopes.10. The device according to claim 1 , wherein the device configured to perform biological sensing in vitro and in vivo.11. The device according to claim 1 , wherein the device is configured to perform DNA structural analysis.12. ...

Подробнее
Номер записи: 19
23-01-2020 дата публикации

MEANS AND PROCESS FOR CREATING WORKS HAVING THE CHARACTERISTIC LOOK AND FEEL OF FILMS GENERATED VIA THE TECHNICOLOR® PROCESS

Номер: US20200026158A1
Автор: Schroeder Andrew
Принадлежит:

An apparatus for the creation of works having the same creative look and feel as works filmed via the original Technicolor® three-strip filming process comprising: a camera, a lens mounted on said camera, a step-up, lens-filter adapter ring mounted on said lens of said camera, a diffusion filter mounted on said step-up, lens-filter adapter ring, said diffusion filter capable of mimicking the effect of traditional silver nitrate film used in the Technicolor® process, and an optical band-stop filter mounted on said the diffusion filter, said optical band-stop filter capable of preventing the transmission of light having a 570-600 nm wavelength and permitting no more than 20% light from being transmitted through it. 1. An apparatus for the creation of works having the same creative look and feel as works filmed via the original Technicolor® three-strip filming process comprising: a camera , a lens mounted on said camera , a step-up , lens-filter adapter ring mounted on said lens of said camera , a diffusion filter mounted on said step-up , lens-filter adapter ring , said diffusion filter capable of mimicking the effect of traditional silver nitrate film used in the Technicolor® process , and an optical band-stop filter mounted on said the diffusion filter , said optical band-stop filter capable of preventing the transmission of light having a 570-600 nm wavelength and permitting no more than 20% light from being transmitted through it.2. A wide angle dispersing light fixture comprising a clear bowl-shaped outer housing having an inner surface , and an outer surface mirrorized with RUSTOLEUM® MIRROR EFFECT , silver , SKU NO. 26772 , and a candelabra style fixture capable of receiving a multiplicity of light bulbs , said light bulbs being Hypericon® A21 LED BULBS having an extended CRI of 94 or higher , and capable of providing R-9 and an unbroken spectrum of light capable of working in daylight balance between 4800 and 5600 kelvin.3. A chromatic exposure meter ...

Подробнее
Номер записи: 20
04-02-2016 дата публикации

Raster optic device for optical hyper spectral scanning

Номер: US20160033393A1
Автор: Juan Ivaldi, Maxim Frayer, Peng Zou
Принадлежит: Smiths Detection Inc

A spectroscopic scanning device, a portable spectroscopic scanning system, and methods for using the spectroscopic scanning device are described that include at least one focusing element configured to collect light, a beam-steering element configured to direct a portion of the collected light from the at least one focusing element, and a detector configured to receive the directed light from the beam-steering element, wherein the beam-steering element is operable to successively select portions of light from a plurality of locations within its field of regard.

Подробнее
Номер записи: 21
01-02-2018 дата публикации

HYPERSPECTRAL IMAGER METHOD AND APPARATUS

Номер: US20180031422A1
Автор: Chlingaryan Anna, Lowe Alex, Melkumyan Arman, Murphy Richard J., Nguyen Dai Bang, Scheding Steven, WISHART Stuart
Принадлежит:

A compact hyperspectral imager adapted to operate in harsh environments and to conduct post acquisition signal processing to provide automated and improved hyperspectral processing results is disclosed. The processing includes luminance and brightness processing of captured hyperspectral images, hyperspectral image classification and inverse rendering to produce luminance invariance image processing. 1. A hyperspectral imager for imaging external environments , the imager including:an optical line scanner unit adapted to perform line scans of a mining environment via rotation thereof;an environmental enclosure surrounding the optical line scanner unit providing a first degree of temperature and dust isolation from the environment, the enclosure mounted on a rotatable platform;a rotatable platform attached to the environmental enclosure, adapted to rotate the environmental enclosure unit and optical line scanner unit under the control of an electronic control system;a thermo-electric cooler unit attached to the environmental enclosure for cooling the enclosure, thereby maintaining the enclosure at a substantially stable temperature during operations; andan electronic control system for controlling the thermo electric cooler unit, and the optical line scanner unit, and the rotation system for the capture of hyperspectral images by said imager.2. A hyperspectral imager as claimed in further including a dessicant port and holding bay for holding a desiccant for providing humidity control to said enclosure.3. A hyperspectral imager as claimed in wherein:said thermo electric cooler unit is mounted on top of the enclosure;said rotatable platform is driven by a cable chain to manage cable movement and prevent breakage; andsaid environmental enclosure includes at least one optical aperture for projection of an optical lens of the optical line scanner unit.425.-. (canceled)26. A hyperspectral imager as claimed in further including an image processing unit interconnected to ...

Подробнее
Номер записи: 22
17-02-2022 дата публикации

Spectroscopic measuring apparatus and method, and method for fabricating semiconductor device using the measuring method

Номер: US20220049949A1
Автор: Jangryul Park, Kwangrak Kim, Soonyang Kwon, Yunje CHO
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A spectroscopic measuring apparatus and method are provided. The apparatus includes a first light source, object, microlens, and imaging lenses, an optical fiber, a spectrometer and a position controller. The object lens to allows light from the first light source to be incident on a stage configured to support a measurement object. The microlens is disposed between the object lens and the stage. The imaging lens images light reflected from the measurement object. The optical fiber has an input terminal disposed on a first image plane of the imaging lens. The spectrometer is disposed at an output terminal of the optical fiber. The position controller controls positions of the object lens, the microlens, and the optical fiber, and adjusts the position of the object lens so that a focus of the object lens is positioned at a virtual image position of a virtual image generated by the microlens.

Подробнее
Номер записи: 23
01-05-2014 дата публикации

Adaptive Front Lens for Raman Spectroscopy Free Space Optics

Номер: US20140118731A1
Автор: Ayers W. Stanley
Принадлежит: MUSTARD TREE INSTRUMENTS, LLC

A Raman spectroscopy system features free space optics, wherein an excitation laser beam is directed to a sample, and Raman scattered photons are collected from a desired point of the excitation beam's impact on the sample, through the air, without the use of fiber optics. The excitation laser is directed to a sample, such as fluid flowing in a pipe, through a sight glass in the pipe. A front lens assembly, having a fixed focal point at a predetermined z-axis distance in front of the front-most lens, collects Raman scattered photons, which pass through an optical system to a detector. The Collection Point (CP), or the point along the excitation beam (and within the sample) at which Raman scattered photons are collected—which coincides with the focal point of the front lens assembly—is controlled by physically translating the front lens assembly along the optical axis. 1. A Raman spectroscopy system using free space optics to analyze a sample , comprising:an excitation laser source operative to selectively generate an excitation laser beam, the source positioned to deliver the beam along an optical axis and onto a sample;a front lens assembly having a fixed focal distance defining a Collection Point (CP), the front lens assembly positioned on the optical axis and selectively moveable along the optical axis, the front lens assembly operative to collect Raman scattered photons from the sample primarily at the CP;a detector positioned and operative to detect Raman scattered photons collected from the sample at the CP by the front lens assembly; anda data processor operative to analyze the spectra of Raman scattered photons detected by the detector;wherein substantially all Raman scattered photons collected from the sample are generated at the CP, and wherein the CP may be positioned along the optical axis by moving the front lens assembly along the optical axis.2. The Raman spectroscopy system of wherein the front lens assembly is operative to focus an optical path ...

Подробнее
Номер записи: 24
31-01-2019 дата публикации

SPECTROMETRIC SYSTEMS AND METHODS FOR IMPROVED FOCUS LOCALIZATION OF TIME- AND SPACE-VARYING MEASUREMENTS

Номер: US20190033135A1
Автор: Delp Gary S., Gilbert Barry K., Haider Clifton R., Rose James A.
Принадлежит:

A system and method of dynamically localizing a measurement of parameter characterizing tissue sample with waves produced by spectrometric system at multiple wavelengths and detected at a fixed location of the detector of the system. The parameter is calculated based on impulse response of the sample, reference data representing characteristics of material components of the sample, and path lengths through the sample corresponding to different wavelengths. Dynamic localization is effectuated by considering different portions of a curve representing the determined parameter, and provides for the formation of a spatial map of distribution of the parameter across the sample. Additional measurement of impulse response at multiple detectors facilitates determination of change of the measured parameter across the sample as a function of time. 1. A method for measurement of a beat-to-beat cardiac stroke volume variation of a living body with a spectrometric system that includes at least one transmitter and at least one receiver , the method comprising:disposing the at least one transmitter on a surface of a region-of-interest (ROI) of the body, the ROI including a peripheral artery, and placing the at least one receiver on the body; 'wherein the output represents time-dependent changes of a concentration of oxygen in arterial blood of the peripheral artery, of the ROI, determined along a path from the at least one transmitter to the at least one receiver, said path defined by a gradient of the concentration of oxygen in said arterial blood;', "performing an oximetry measurement to acquire, with a data-processing circuitry of the spectrometric system, a time-dependent output from the at least one receiver caused by the at least one transmitter's emission of at least one electromagnetic wave (EMW) at at least one corresponding wavelength,"}from the time-dependent output, creating a waveform that is a surrogate for a pulse pressure in the aorta; andfrom changes in the ...

Подробнее
Номер записи: 25
04-02-2021 дата публикации

SPECTRAL FILTERING FOR RAMAN SPECTROSCOPY

Номер: US20210033461A1
Автор: Bickham Scott Robertson, Effenberger, Jr. Andrew Jay, Sanson Mark Christian
Принадлежит:

A Raman spectroscopy system is provided. The spectroscopy system includes an optical switch including a first side having a pump inlet and a return outlet, and a second side having a plurality of pump outlets and a plurality of return inlets. The spectroscopy system includes at least one radiation source optically coupled to the pump inlet and a detector optically coupled to the return outlet. The spectroscopy system further includes a pump filter module optically coupled between the at least one radiation source and the pump outlets and a return filter module optically coupled between the detector and the return inlets. The spectroscopy system further includes a plurality of probes, each probe optically connected to at least one of the plurality of pump outlets by at least one excitation fiber and optically coupled to one of the return inlets by at least one emission fiber. 1. A Raman spectroscopy system comprising: a first side having a pump inlet and a return outlet, and', 'a second side having a plurality of pump outlets and a plurality of return inlets;, 'an optical switch comprisingat least one radiation source optically coupled to the pump inlet of the optical switch;a detector optically coupled to the return outlet of the optical switch;a pump filter module optically coupled between the at least one radiation source and the pump outlets of the optical switch;a return filter module optically coupled between the detector and the return inlets of the optical switch; anda plurality of probes, each probe optically connected to at least one of the plurality of pump outlets of the optical switch by at least one excitation fiber and optically coupled to one of the return inlets of the optical switch by at least one emission fiber.2. The spectroscopy system of claim 1 , wherein the optical switch comprises a pump optical switch and a return optical switch claim 1 , wherein the pump optical switch comprises the pump inlet and the plurality of pump outlets claim 1 , ...

Подробнее
Номер записи: 26
04-02-2021 дата публикации

MOBILE GAS AND CHEMICAL IMAGING CAMERA

Номер: US20210037197A1
Автор: Hagen Nathan Adrian, KESTER Robert Timothy
Принадлежит:

In one embodiment, 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 an optical focal plane array (FPA) unit. 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. Said optical system and said processing unit can be contained together in a data acquisition and processing module configured to be worn or carried by a person. 1. A method for imaging a target species in an object , the method comprising:receiving, by an optical system, infrared (IR) radiation, wherein said optical system comprises an optical focal plane array (FPA) unit and at least one lens array of a lens assembly configured to achieve an f-number less than 2; andacquiring, by the optical system, multispectral optical data representing said target species from the received IR radiation.2. The method of claim 1 , wherein the lens assembly comprises an array of two-part lenses.3. The method of claim 1 , wherein the optical FPA unit comprises a pixel array and wherein the optical system comprises a plurality of optical channels defining an image detection region on the optical FPA unit claim 1 , the image detection region having an area in a range of about 15% to about 95% of the pixel array.4. The method of claim 3 , wherein a number of the plurality of optical channels is between 4 and 50.5. The method of claim 1 , wherein lenses of the at least one lens array are disposed in a mounting plate.6. The method of claim 1 ...

Подробнее
Номер записи: 27
07-02-2019 дата публикации

Overlay Metrology Using Multiple Parameter Configurations

Номер: US20190041329A1
Автор: Amnon Manassen, Andrei V. Shchegrov, Andrew V. Hill, Noam Sapiens
Принадлежит: KLA Tencor Corp

An overlay metrology system includes an overlay metrology tool configurable to generate overlay signals with a plurality of recipes and further directs an illumination beam to an overlay target and collects radiation emanating from the overlay target in response to the at least a portion of the illumination beam to generate the overlay signal with the particular recipe. The overlay metrology system further acquires two or more overlay signals for a first overlay target using two or more unique recipes, subsequently acquires two or more overlay signals for a second overlay target using the two or more unique recipes, determines candidate overlays for the first and second overlay targets based on the two or more overlay signals for each target, and determines output overlays for the first and second overlay targets based on the two or more candidate overlays for each target.

Подробнее
Номер записи: 28
06-02-2020 дата публикации

Spectrometric Measuring Head for Forestry, Agricultural and Food Industry Applications

Номер: US20200041340A1
Автор: Klein Helge, Schade Peter
Принадлежит:

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

Подробнее
Номер записи: 29
15-02-2018 дата публикации

Optical measurement device and optical measurement method

Номер: US20180045571A1
Автор: Koichi Watanabe, Manabu Shiozawa, Masataka Shirai
Принадлежит: Hitachi High Technologies Corp

In multiplex CARS, a fingerprint region is a region where signals are densely concentrated. Information about the intensities and spatial distribution of these signals is important in cell analysis. However, there has been a problem in that the signal intensities are low. Accordingly, mechanisms 702 and 703 for adjusting the power branching ratio between light that enters a photonic crystal fiber 705 and pumping light; mechanisms 710 and 711 for adjusting the divergence/convergence state of the pumping light; and mechanisms 706 and 2101 for adjusting the divergence/convergence state of Stokes light are provided to enable adjustment for emphasizing a desired wavelength band.

Подробнее
Номер записи: 30
08-05-2014 дата публикации

Spectroscopic apparatus and spectroscopic light source

Номер: US20140125981A1
Автор: Mitsuhiro Iga, Nobuyuki Kakuryu, Takeo Tanaami
Принадлежит: Yokogawa Electric Corp

A spectroscopic apparatus includes an optical system configured to transmit output light from a sample irradiated with irradiation light from a light source, a two-dimensional array light detector configured to photograph light transmitted through the optical system, and a control unit. The optical system includes a first optical device disposed between the sample and the two-dimensional array light detector, a second optical device disposed between the two-dimensional array light detector and the first optical device, and a variable band-pass filter disposed in at least one of spaces between the first optical device and the sample and between the second optical device and the two-dimensional array light detector. The control unit changes a light transmission wavelength band of the variable band-pass filter in accordance with a photographing timing of the two-dimensional array light detector.

Подробнее
Номер записи: 31
26-02-2015 дата публикации

Motorized Variable Path Length Cell for Spectroscopy

Номер: US20150053862A1
Автор: Coffin John Magie
Принадлежит: Thermo Electron Scientific Instruments LLC

The present invention is thus directed to an automated system of varying the optical path length in a sample that a light from a spectrophotometer must travel through. Such arrangements allow a user to easily vary the optical path length while also providing the user with an easy way to clean and prepare a transmission cell for optical interrogation. Such path length control can be automatically controlled by a programmable control system to quickly collect and stores data from different path lengths as needed for different spectrographic analysis. Moreover, the system utilizes configured wedge shaped windows to best minimize the reflections of light which cause periodic variation in transmission at different wave lengths (commonly described as “channel spectra”). Such a system, as presented herein, is able to return best-match spectra with far fewer computational steps and greater speed than if all possible combinations of reference spectra are considered. 1. An apparatus for measuring an optical property of a sample , comprising:a first window and a second window; wherein the first window is configured to receive radiation from a source of optical energy over free space and the second window is configured with an incorporated optical detector that is utilized to optically interrogate a disposed sample therebetween the pair of windows, and wherein the first window and the second window are both moveable with respect to the positioning of the source of optical energy, and wherein the surfaces of the first window and the surfaces of the second window are further configured to respectively provide a first optical wedge and a second optical wedge so as minimize channel spectra; anda processor adapted to control a separation between configured surfaces of the first window and the second window at a variable distance (P) in order to pull the disposed sample into a column contained by surface tension or to squeeze the sample during optical analysis, wherein the processor ...

Подробнее
Номер записи: 32
14-02-2019 дата публикации

Integrated one-piece polarizing interferometer and snapshot spectro-polarimeter applying same

Номер: US20190049302A1
Автор: Dae Suk Kim
Принадлежит: Industry Academic Cooperation Foundation of Chonbuk National University

An integrated one-piece polarizing interferometer includes a polarization beam splitter for separating incident complex waves, a first mirror attached to a first surface of the polarization beam splitter, for reflecting a first polarization transmitted through the polarization beam splitter to the polarization beam splitter, and a second mirror attached to a second surface of the polarization beam splitter, for reflecting a second polarization transmitted through the polarization beam splitter to the polarization beam splitter. Accordingly, it is possible to measure dynamic spectroscopic polarization phenomenon with extremely high robustness disturbances due to an external vibration and the like by using the integrated one-piece polarizing interferometer, thereby improving measurement repeatability and accuracy of measurement.

Подробнее
Номер записи: 33
25-02-2021 дата публикации

SPECTROSCOPIC MEASUREMENT DEVICE AND SPECTROSCOPIC MEASUREMENT METHOD

Номер: US20210055160A1
Автор: ZHUANG TUO
Принадлежит:

To implement a configuration for enabling independent adjustment of a spatial resolution and a wavelength resolution of a spectroscopic measurement device. A spatial resolution adjustment unit configured to adjust a spatial resolution of the spectroscopic measurement device, and a wavelength resolution adjustment unit configured to adjust a wavelength resolution of the spectroscopic measurement device are included, and the spatial resolution adjustment unit maintains output light from a condensing unit to a spectroscopic imaging unit of the spectroscopic measurement device as parallel light, adjusts a parameter of a constituent element of the condensing unit, and changes the spatial resolution without changing the wavelength resolution of the spectroscopic measurement device. The wavelength resolution adjustment unit adjusts a parameter of a spectroscopic imaging unit of the spectroscopic measurement device and changes the wavelength resolution without changing the spatial resolution of the spectroscopic measurement device. 1. A spectroscopic measurement device comprising:a spatial resolution adjustment unit configured to adjust a spatial resolution of the spectroscopic measurement device; anda wavelength resolution adjustment unit configured to adjust a wavelength resolution of the spectroscopic measurement device, whereinthe spatial resolution adjustment unit changes the spatial resolution without changing the wavelength resolution of the spectroscopic measurement device.2. The spectroscopic measurement device according to claim 1 , whereinthe wavelength resolution adjustment unit changes the wavelength resolution without changing the spatial resolution of the spectroscopic measurement device.3. The spectroscopic measurement device according to claim 1 , whereinthe spatial resolution adjustment unit changes the spatial resolution to satisfy a condition of maintaining output light from a condensing unit to a spectroscopic imaging unit of the spectroscopic ...

Подробнее
Номер записи: 34
22-02-2018 дата публикации

Spectral detector and spectral detecting method using the same

Номер: US20180052048A1
Автор: Sookyoung ROH, Sunghyun NAM
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A spectral detector includes a grating panel including a first grating pattern having a first period, a second grating pattern having a second period that is different from the first period, and a light exit surface through light exits the grating panel, and an optical measurement panel arranged to face the light exit surface of the grating panel, and configured to measure a change in intensity of first light passing through the first grating pattern according to a propagation distance of the first light, and to measure a change in intensity of second light passing through the second grating pattern according to a propagation distance of the second light.

Подробнее
Номер записи: 35
12-03-2015 дата публикации

DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM FOR CHEMICAL DETECTION

Номер: US20150069239A1
Автор: Hagen Nathan A., Kester Robert T.
Принадлежит:

A divided-aperture infrared spectral imaging (DAISI) system that is structured to provide identification of target chemical content in a single imaging shot based on spectrally-multiplexed operation. The system is devoid of spectral scanning acquisition of infrared (IR) spectral signatures of target content with an IR detector and does not require content. 1. An infrared (IR) imaging system for determining a concentration of a target species in an object , the imaging system comprising:an optical system including an optical focal plane array (FPA) unit that is devoid of a cooling means, the optical system configured to receive IR radiation from the object along at least two optical channels defined by components of the optical system, said at least two optical channels being spatially and spectrally different from one another;first and second temperature-controlled shutters removably positioned to block IR radiation incident onto the optical system from the object; anda processor configured to acquire multispectral optical data representing said target species from the received IR radiation in a single occurrence of data acquisition.2. A method for operating an infrared (IR) imaging system , comprising:receiving IR radiation from an object along at least two optical channels defined by components of an optical system of the IR imaging system, said at least two optical channels being spatially and spectrally different from one another;transmitting the received IR radiation towards an optical focal plane array (FPA) unit that is not being cooled in the course of normal operation; andremovably positioning at least one of at least two temperature-controlled shutters in front of the optical system to block IR radiation incident onto the optical system from the object. The present application claims benefit of and priority from the U.S. Provisional Applications No. 61/688,630 filed on May 18, 2012 and titled “Divided Aperture Infrared Spectral Imager (DAISI) for Chemical ...

Подробнее
Номер записи: 36
17-03-2022 дата публикации

Method and system for advanced autofocusing spectroscopy

Номер: US20220082435A1
Автор: Christian Burlet, Evan Eshelman, Kirby Simon, Pablo Sobron, Yves Vanbravant
Принадлежит: Impossible Sensing LLC

A spectroscopic autofocusing method and a system for such a method are disclosed. According to one embodiment, a spectroscopic autofocusing method includes applying a plurality of electrical signals to a shape changing lens of a spectroscopy system. The method includes emitting, by an optical source coupled to the spectroscopy system, one or more optical signals directed to a target. The method includes determining, by a detector, one or more power measurements of one or more returned optical signals corresponding to an illuminated area of the target. The method includes aggregating, from the detector, the one or more power measurements, wherein each power measurement corresponds to a respective electrical signal of the plurality of electrical signals applied to the shape changing lens. The method includes determining an optimized electrical signal corresponding to a maximum power measurement indicated by the one or more power measurements.

Подробнее
Номер записи: 37
27-02-2020 дата публикации

Optical head and measuring apparatus

Номер: US20200064187A1
Автор: Yoshiyuki Ishimitsu
Принадлежит: Atonarp Inc

An optical head includes a first module that concentrates pump light and Stokes light on a first point; a second module that collects CARS light from the first point; and a third module that supports the first module and the second module. The first module includes: a high rigidity first frame; and a first optical system including a plurality of optical elements fixed to the first frame. The second module includes: a high rigidity second frame; and a second optical system including a plurality of optical elements fixed to the second frame. The third module includes a high rigidity third frame that fixes the first frame and the second frame.

Подробнее
Номер записи: 38
11-03-2021 дата публикации

Spectroscope

Номер: US20210072079A1
Автор: Fangzhou Wang, Pengxia LIANG
Принадлежит: BOE Technology Group Co Ltd

A spectroscope includes a first substrate and a second substrate opposite to each other; a light introducing assembly on a side of the first substrate facing away from the second substrate; a temperature adjusting assembly between the first substrate and the second substrate; a liquid crystal dimming assembly between the first substrate and the second substrate, wherein the temperature adjusting assembly is configured to adjust a temperature of the liquid crystal dimming assembly, so as to adjust spectrum of light passing through the liquid crystal dimming assembly; a spectroscopic grating on the first substrate; a reflector on the second substrate and configured to reflect incident light introduced by the light introducing assembly to the spectroscopic grating; and a plurality of sensors configured to receive the incident light after being subjected a light splitting by the spectroscopic grating. A wavelength of the incident light received by each sensor is different.

Подробнее
Номер записи: 39
19-03-2015 дата публикации

SPECTROSCOPIC IMAGING DEVICE ADJUSTING METHOD AND SPECTROSCOPIC IMAGING SYSTEM

Номер: US20150077748A1
Автор: Hirano Mitsuharu, Sogawa Ichiro, Tanaka Masato
Принадлежит: Sumitomo Electric Industries, Ltd.

A spectroscopic imaging device adjusting method adjusts a relative arrangement relationship among a collimating lens, a diffraction grating, a condensing lens and an array type light receiving part so as to maximize the value of the following expression (1) for an output values ƒfrom respective light receiving sensors Pwhen monochromatic light is inputted to a spectroscopic imaging device, wherein α>1 and n is each integer equal to or larger than 1 and equal to or smaller than N. 2. The method of adjusting the spectroscopic imaging device according to claim 1 ,wherein a full width at half maximum of a spectrum of the monochromatic light is smaller than a wavelength resolution of the array type light receiving part.4. The method of adjusting the spectroscopic imaging device according to claim 3 ,wherein the minimum value of the wavelength interval of the two adjacent monochromatic lights is at least 10 times as large as the wavelength resolution, andthe wavelength bandwidth of the light received by the array type light receiving part is at least 10 times as large as the maximum value of the wavelength interval of the two adjacent monochromatic lights.5. A spectroscopic imaging system comprising:a collimating lens which collimates input light;a diffraction grating which inputs light collimated by the collimating lens and outputs the light in a different direction according to a wavelength;a condensing lens which condenses the light outputted from the diffraction grating at a different position according to the wavelength;an array type light receiving part which receives the light condensed by the condensing lens with any of a plurality of light receiving sensors arrayed along a predetermined line;a monochromatic light supply source arranged on an optical path of the light to be inputted to the collimating lens, the monochromatic light supply source inputting monochromatic light to the collimating lens; andadjusting means which adjusts a relative arrangement ...

Подробнее
Номер записи: 40
07-03-2019 дата публикации

Integrated spectrometer and optomechanical sensor

Номер: US20190072428A1
Автор: FIORE Andrea, LIU Tianran, Midolo Leonardo, VAN DER HEIJDEN Robertus Willebrordus, Zobenica Zarko
Принадлежит:

A double membrane microspectrometer is provided that includes a first membrane having a first and second doped semiconductor layers, and a first intrinsic layer is disposed between the first and second layers, where the first intrinsic layer includes an optically absorbing material, a first pattern of through holes are disposed perpendicular through the first membrane having lateral support arms, a second membrane having a third doped layer and a fourth layer is an intrinsic layer or a doped layer, where the second membrane includes a second pattern of through holes, where the first membrane is separated from the second membrane by an insulating bridge layer and is supported above the second membrane by lateral support arms, where an absorption spectrum of the absorbing material is dependent on the separation distance of the membranes, electrodes are disposed on the first layer, the second layer, and the third layer operate the separation. 1) A double membrane microspectrometer , comprising:a) a first membrane comprising a first doped semiconductor layer, a first intrinsic semiconductor layer, and a second doped semiconductor layer, wherein said first doped semiconductor layer is opposite said second doped semiconductor layer, wherein said first intrinsic semiconductor layer is disposed between said first doped semiconductor layer and said second doped semiconductor layer, wherein said first intrinsic semiconductor layer comprises an optically absorbing material disposed therein, wherein said first membrane comprises a first pattern of through holes disposed perpendicular to said first membrane semiconductor layers, wherein said first membrane comprises lateral support arms disposed to support said first membrane;b) a second membrane comprising a third doped semiconductor layer and a fourth semiconductor layer, wherein said third doped semiconductor layer is opposite said fourth semiconductor layer, wherein said fourth semiconductor layer comprises an intrinsic ...

Подробнее
Номер записи: 41
05-03-2020 дата публикации

DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM FOR CHEMICAL DETECTION

Номер: US20200072671A1
Автор: Hagen Nathan A., Kester Robert T.
Принадлежит:

A divided-aperture infrared spectral imaging (DAISI) system that is structured to provide identification of target chemical content in a single imaging shot based on spectrally-multiplexed operation. The system is devoid of spectral scanning acquisition of infrared (IR) spectral signatures of target content with an IR detector and does not require content. 1. (canceled)2. (canceled)3. An infrared (IR) imaging system for imaging a scene , the imaging system comprising:an optical system including an optical focal plane array (FPA) unit, the optical system configured to receive IR radiation from the scene along at least two optical channels defined by components of the optical system to form respective images on the FPA array unit, said at least two optical channels being spatially and spectrally different from one another; and obtain a difference between a plurality of images from respective optical channels to form a temporal difference reference;', (a) the temporal difference image, and', '(b) a difference between a plurality of images obtained from respective optical channels at a later time,, 'obtain a difference between'}, 'thereby obtaining a temporal difference image., 'a data-processing system configured to4. The IR system of claim 3 , wherein the FPA unit comprises a plurality of focal plane arrays claim 3 , different focal plane arrays in different of said optical channels.5. The IR system of claim 4 , wherein said plurality of focal plane arrays and the components of the optical system are arranged in a two-dimensional array.6. The IR system of claim 5 , wherein said optical system includes a plurality of imaging lenses for imaging said scene onto said FPA unit claim 5 , different imaging lenses in different of said optical channels.7. The IR system of claim 6 , wherein said plurality of focal plane arrays comprise infrared focal plane arrays.8. The IR system of claim 3 , wherein said plurality of optical channels further comprise a plurality of spectral ...

Подробнее
Номер записи: 42
15-03-2018 дата публикации

MOBILE GAS AND CHEMICAL IMAGING CAMERA

Номер: US20180077363A1
Автор: Hagen Nathan Adrian, KESTER Robert Timothy
Принадлежит:

In one embodiment, 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 an optical focal plane array (FPA) unit. 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. Said optical system and said processing unit can be contained together in a data acquisition and processing module configured to be worn or carried by a person. 1. (canceled)2. A method for monitoring the presence of one or more target gases , the method comprising:receiving image data from a plurality of IR imaging systems, each IR imaging system configured to capture infrared images of the one or more target gases in real-time and to associate each captured infrared image with a location at which the one or more target gases are present; andprocessing the received image data to identify the location at which the one or more target gases is detected.3. The method of claim 2 , further comprising mapping claim 2 , within the one or more installation sites claim 2 , the location at which the one or more target gases is detected.4. The method of claim 2 , further comprising mapping claim 2 , within the one or more installation sites claim 2 , the location at which the or more target gases is detected claim 2 , a type of target gas detected and a concentration of the type of target gas detected.5. The method of claim 2 , further comprising detecting the presence of the one or more target gases based on the image data ...

Подробнее
Номер записи: 43
14-03-2019 дата публикации

Detector Assembly For Analysis Of Elemental Composition Of A Sample Using Optical Emission Spectroscopy

Номер: US20190078935A1
Автор: Hassi Jukka
Принадлежит:

According to an example embodiment, a detector assembly for use in analysis of elemental composition of a sample by using optical emission spectroscopy is provided, the detector assembly comprising a rotatable element that is rotatable about an axis and that has attached thereto a laser source for generating laser pulses for invoking optical emission on a surface of the sample, which laser source is arranged to generate laser pulses focused at a predefined distance from said axis at a predefined distance from a front end of the detector assembly, and an optical receiver for capturing optical emission invoked by said laser pulses. 1. A detector assembly for use in analysis of elemental composition of a sample by using optical emission spectroscopy , the detector assembly having a front end and comprising:an element that is rotatable about an axis;a laser source arranged in said rotatable element, the laser source provided for generating laser pulses for invoking optical emission on a surface of the sample, the laser source being arranged to generate laser pulses directed towards a point at a first predefined distance from said axis at a second predefined distance from said front end of the detector assembly; andan optical receiver arranged in said rotatable element, the optical receiver optically coupled to a detector by an optical fiber cable and the detector being for capturing optical emission invoked by said laser pulses.2. The detector assembly according to claim 1 , wherein said detector is provided outside the rotatable element.3. The detector assembly according to claim 1 , wherein said optical receiver comprises an end of said optical fiber cable.4. The detector assembly according to claim 3 , wherein said optical receiver further comprises one or more focusing optical elements for collecting light to the detector via the optical fiber cable.5. The detector assembly according to claim 1 , wherein the laser source is arranged at the first predefined distance ...

Подробнее
Номер записи: 44
02-04-2015 дата публикации

FAST FOCUSING METHOD AND DEVICE FOR MULTI-SPECTRAL IMAGING

Номер: US20150092099A1
Автор: Shao Sijie, Shen Huiliang, Wang Wei, Xin John Haozhong, Zheng Zhi-Huan
Принадлежит: The Hong Kong Research Institute of Textiles and Apparel Limited

Fast focusing methods and devices for multi-spectral imaging are disclosed. The method comprising selecting one of a plurality of imaging channel as a reference channel, adjusting rotation positions of a stepper motor, calculating focus measures corresponding to all rotation positions of the stepper motor, and obtaining a first distribution curve; in each of the other imaging channels, selecting at least three rotation positions of the stepper motor, matching focus measures at the selected rotation positions with the first distribution curve to obtain a second distribution curve and a offset value between the first distribution curve and the second distribution curve, and calculating a clear focusing position of the imaging channel to be focused according to the offset value; performing a fine-tuning focusing, and thereby obtaining a more precise clear focusing position. A fast focusing for multi-spectral imaging and obtain clear multi-spectral images is obtained. 1. A fast focusing method for multi-spectral imaging comprising following steps:{'b': '1', 'S, selecting one of a plurality of imaging channels as a reference channel, adjusting rotation positions of a stepper motor, calculating focus measures corresponding to all rotation positions of the stepper motor, and obtaining a first distribution curve that represents a change of the focus measure of the reference channel along with the rotation position of the stepper motor;'}{'b': '2', 'S, for each of the other imaging channels, selecting at least three rotation positions of the stepper motor, matching focus measures at the selected rotation positions with the first distribution curve to obtain a second distribution curve that represents a change of the focus measure of the imaging channel to be focused along with the rotation position of the stepper motor and an offset value between the first distribution curve and the second distribution curve, and calculating a clear focusing position of the imaging channel ...

Подробнее
Номер записи: 45
25-03-2021 дата публикации

INTEGRATION OF OPTICAL COMPONENTS WITHIN A FOLDED OPTICAL PATH

Номер: US20210088381A1
Автор: Gazes Michael, Kymissis Ioannis, Pervez Nadia, Scholtz James
Принадлежит:

An apparatus includes a substrate transmissive of electromagnetic energy of at least a plurality of wavelengths, having a first end, a second end, a first major face, a second major face, at least one edge, a length, a width, and a thickness, at least a first output optic that outputs electromagnetic energy the substrate; and a first input optic oriented and positioned to provide electromagnetic energy into the substrate via at least one of the first or the second major face of the substrate. The first output optic is laterally spaced from the first input optic. A number of reflectors and optional absorbers may be positioned proximate the first major face and/or the second major face to structure electromagnetic energy and/or to translate such from the first input optic to the first output optic. The apparatus may be part of a spectrometer or other optical system. 1. An apparatus , comprising:a substrate that is transmissive of electromagnetic energy of at least a plurality of wavelengths, the substrate having a first end, a second end, a first major face, a second major face, at least one edge, a length, a width, and a thickness, the second end opposed to the first end across the length of the substrate, the second major face opposed across the thickness of the substrate from the first major face, the at least one edge which extends between at least a portion of the first major face and a portion of the second major face, the width of the substrate greater than the thickness of the substrate;at least a first input optic oriented and positioned to provide electromagnetic energy into the substrate via at least one of the first or the second major face of the substrate;at least a first output optic spaced along at least one of the length or the width of the substrate from the first input optic;a first number of reflective portions that extend at least partially along the first major face of the substrate;a second number of reflective portions that extend at least ...

Подробнее
Номер записи: 46
31-03-2016 дата публикации

AUTO-FOCUS RAMAN SPECTROMETER SYSTEM

Номер: US20160091366A1
Автор: Wang Ke-Yi, Yang Frank Jiann-Fu
Принадлежит:

An autofocus Raman spectrometer system includes a laser probe assembly, a microprocessor, adjustable stages and a driving means. The laser probe assembly includes an excitation means, a focusing optics provided to focus an excitation beam from the excitation means onto a sample and generate Raman scattering spectrum, a collection optics for collecting the Raman scattering spectrum, and a spectrographic detector for generating a Raman spectrum based on the Raman scattering intensity received from the collection optics. The microprocessor receives the Raman spectra signal therefrom. The laser probe assembly is situated on the adjustable stage. The driving means is coupled to the microprocessor and configured to drive the stage to move with respect to the sample. The microprocessor generates a command to the driving means for moving a position of the adjustable stage to achieve an optimal optical focus based on signal intensity of the spectra peaks measured by the spectrographic detector. 1. An autofocus Raman spectrometer system , comprising:a laser probe assembly including an excitation means, a focusing optics provided to focus an excitation beam from the excitation means onto a sample and generate Raman scatter, a collection optics for collecting the Raman scatter, and a spectrographic detector for generating a Raman spectrum signal based on an intensity of the Raman scatter received from the collection optics;a microprocessor coupled to the spectrographic detector to receive the Raman spectrum signal therefrom;an adjustable stage whereupon either one of the sample or the laser probe assembly is situated; anda driving means coupled to the microprocessor and configured to drive the adjustable stage to move, thereby allowing adjustment of a separation between the sample and the focusing lens of the laser probe assembly;wherein the microprocessor generates a command to the driving means for moving a position of the adjustable stage to achieve an optimal optical focus ...

Подробнее
Номер записи: 47
21-03-2019 дата публикации

FOCUS PLANE EQUALIZER APPARATUS WITH PRISMATIC FOCUS CORRECTOR

Номер: US20190089914A1
Автор: Jais Pablo, Pose Agustina, Richarte Gerardo Gabriel, Vilaseca David, Vuletich Juan Manuel
Принадлежит:

Systems and methods for hyperspectral and multispectral imaging are disclosed. A system includes a lens and an imaging device having a plurality of pixel sensors. A focus corrector is located within the optical path to refract at least a portion of the incoming light and change the focusing distance of specific wavelengths of light to converge at a focal plane. The focal corrector is selected based upon the imaging system to reduce an overall measure of deviation between a focal length curve for the lens and a focus position curve for pixel sensors to produce focused imaging data for a broad spectrum of light, including beyond the visible range. 1. An apparatus for multispectral imaging , comprising:a lens;an imaging device having a sensor array having a plurality of pixel sensors, the sensor array positioned to coincide with an optical axis of the lens; anda focus corrector disposed between the lens and the sensor array, the focus corrector having a first prismatic portion configured to refract desired wavelengths of light outside a given spectral range and cause the desired wavelengths to converge onto the sensor array.2. The apparatus of claim 1 , wherein ones of the plurality of pixel sensors are configured to detect corresponding ones of a plurality of pixel sensor wavelengths claim 1 , and wherein the focus corrector is configured such that a measure of corresponding focal lengths of the lens for the ones of the plurality of pixel sensor wavelengths of the ones of the plurality of pixel sensors are within a threshold focus error tolerance.3. The apparatus of claim 1 , wherein the focus corrector comprises a second constant-thickness portion claim 1 , the second constant-thickness portion designed to allow light in a given spectral band to pass therethrough.4. The apparatus of claim 1 , where in the focus corrector comprises a continuously variable thickness portion designed to allow light in a given spectral band to pass therethrough.5. The apparatus of claim ...

Подробнее
Номер записи: 48
19-03-2020 дата публикации

Far-Infrared Spectroscopy Device

Номер: US20200088577A1
Автор: Kei Shimura, Kenji Aiko, Mizuki Oku
Принадлежит: Hitachi High Tech Corp

This far-infrared spectroscopy device is provided with: a variable wavelength far-infrared light source that generates first far-infrared light; an illuminating optical system that irradiates a sample with the first far-infrared light; a detecting nonlinear optical crystal that converts second far-infrared light into near-infrared light using pump light, said second far-infrared light having been transmitted from the sample; and a far-infrared image-forming optical system that forms an image of the sample in the detecting nonlinear optical crystal. The irradiation position of the first far-infrared light on the sample does not depend on the wavelength of the first far-infrared light.

Подробнее
Номер записи: 49
19-03-2020 дата публикации

DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM

Номер: US20200088586A1
Автор: Hagen Nathan Adrian, KESTER Robert Timothy
Принадлежит:

Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays. 1. An infrared (IR) imaging system configured to image a scene , the imaging system comprising:a plurality of spatially and spectrally different optical channels comprising a plurality of cameras configured to image the scene;at least one thermal reference source having a known temperature placed in front of the plurality of cameras and configured to be imaged by the plurality of cameras; anda data-processing unit comprising a processor, acquire with the plurality of cameras a plurality of frames having regions that include images of the reference source; and', 'apply a dynamic calibration correction to the plurality of cameras to allow at least one camera in the plurality of cameras to be calibrated to agree with another camera in the plurality imaging the reference source., 'wherein the imaging system is configured to2. The system of claim 1 , wherein the system includes at least four optical channels.3. The system of claim 1 , wherein the system includes at least eight optical channels.4. The system of claim 1 , wherein a first optical channel comprises a first FPA ...

Подробнее
Номер записи: 50
09-04-2015 дата публикации

Spectrometer

Номер: US20150099292A1
Автор: Keith Carron, Mark Watson, Shane Buller
Принадлежит: MKS Tech (d/b/a Snowy Range Instruments)

A spectroscopic system is provided. In one embodiment, the spectroscopic system comprises a light source adapted to provide a beam of illumination; an optical system adapted to provide the beam of illumination to a sample and receive a spectroscopy signal from the sample and direct the spectroscopy signal to at least one single channel detector, wherein the optical system comprises an adjustable dispersing element for directing one or more spectral features of the spectroscopy signal to the at least one single channel detector; a calibration detector adapted to determine a set point of the adjustable dispersing element; and a source synchronization component adapted to synchronize an operation of the light source and the at least one single channel detector. A method of calibrating a dispersing element of a spectrometer is also provided.

Подробнее
Номер записи: 51
12-05-2022 дата публикации

COLOR MEASUREMENT APPARATUS

Номер: US20220146314A1
Автор: ARUGA Sho, MIYASAKA Haruki
Принадлежит:

A color measurement apparatus includes an incident light processing portion that processes light incident through the opening portion, a light emission portion that emits light toward the measurement target, a first circuit substrate in which the incident light processing portion is disposed, a second circuit substrate in which the light emission portion is disposed, and a frame assembly that is formed of a metal material, and in which the first circuit substrate and the second circuit substrate are disposed, in which the frame assembly includes a main frame that forms a base of the apparatus, a first subframe that holds the first circuit substrate, and a second subframe that holds the second circuit substrate, and the first subframe and the second subframe are in direct or indirect contact with the main frame. 1. A color measurement apparatus comprising:an opening portion forming member that is a member in which an opening portion for causing light arriving from a measurement target to enter inside the apparatus is formed, and that is arranged on a bottom surface at a time of measurement performed by the apparatus;an incident light processing portion that processes light incident through the opening portion;a light emission portion that emits light toward the measurement target;a first circuit substrate in which the incident light processing portion is disposed;a second circuit substrate in which the light emission portion is disposed; anda frame assembly that is formed of a metal material, and in which the first circuit substrate and the second circuit substrate are disposed, whereinthe frame assembly includesa main frame that forms a base of the apparatus,a first subframe that holds the first circuit substrate, anda second subframe that holds the second circuit substrate, andthe first subframe and the second subframe are in direct or indirect contact with the main frame.2. The color measurement apparatus according to claim 1 , whereinthe main frame includes a ...

Подробнее
Номер записи: 52
12-05-2022 дата публикации

COLOR MEASUREMENT APPARATUS

Номер: US20220146315A1
Автор: AKAHANE Hisayuki, FURUYA Kenichi, MIYASAKA Haruki
Принадлежит:

A color measurement apparatus includes an opening portion forming member that is a member in which an opening portion for causing light arriving from a measurement target to enter inside the apparatus is formed, and that is arranged on a bottom surface at a time of measurement performed by the apparatus, an incident light processing portion that processes light incident through the opening portion, and a shutter unit configured to be displaced between a closed position at which the opening portion is covered, in which the shutter unit includes a shutter member that closes the opening portion when the shutter unit is at the closed position, a shutter holding member that holds the shutter member such that the shutter member is configured to be displaced in a direction of approaching to and separating from the opening portion, and a pressing member that presses the shutter member toward the opening portion. 1. A color measurement apparatus comprising:an opening portion forming member that is a member in which an opening portion for causing light arriving from a measurement target to enter inside the apparatus is formed, and that is arranged on a bottom surface at a time of measurement performed by the apparatus;an incident light processing portion that processes light incident through the opening portion; anda shutter unit configured to be displaced between a closed position at which the opening portion is covered, and an open position at which the opening portion is open, wherein a shutter member that closes the opening portion when the shutter unit is at the closed position,', 'a shutter holding member that holds the shutter member such that the shutter member is configured to be displaced in a direction of approaching to and separating from the opening portion, and', 'a pressing member that presses the shutter member toward the opening portion., 'the shutter unit includes'}2. The color measurement apparatus according to claim 1 , whereinthe pressing member presses ...

Подробнее
Номер записи: 53
12-05-2022 дата публикации

COLOR MEASUREMENT APPARATUS

Номер: US20220146318A1
Автор: AKAHANE Hisayuki, FURUYA Kenichi, MIYASAKA Haruki
Принадлежит:

A color measurement apparatus includes an opening portion forming member that is a member in which an opening portion for causing light arriving from a measurement target to enter inside the apparatus is formed, and that is arranged on a bottom surface at a time of measurement performed by the apparatus, an incident light processing portion that processes light incident through the opening portion, a shutter unit that is a unit configured to be displaced between a closed position at which the opening portion is covered, and an open position at which the opening portion is open, and that includes a reflection reference surface used as a reference of reflectance at a position facing the opening portion, and a detection section that detects changes in a detection signal to be output in accordance with displacement of the shutter unit. 1. A color measurement apparatus comprising:an opening portion forming member that is a member in which an opening portion for causing light arriving from a measurement target to enter inside the apparatus is formed, and that is arranged on a bottom surface at a time of measurement performed by the apparatus;an incident light processing portion that processes light incident through the opening portion;a shutter unit that is a unit configured to be displaced between a closed position at which the opening portion is covered, and an open position at which the opening portion is open, and that includes a reflection reference surface used as a reference of reflectance at a position facing the opening portion; anda detection section that detects changes in a detection signal to be output in accordance with displacement of the shutter unit.2. The color measurement apparatus according to claim 1 , whereinthe detection section is configured with a magnetic sensor that detects changes in the intensity of magnetism.3. The color measurement apparatus according to claim 1 , further comprising:a control portion that receives the detection signal from ...

Подробнее
Номер записи: 54
28-03-2019 дата публикации

Adaptive, Very High Resolution Imaging Spectrometer

Номер: US20190094073A1
Автор: Azzazy Medhat, Justice James
Принадлежит: Irvine Sensors Corporation

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 ...

Подробнее
Номер записи: 55
13-04-2017 дата публикации

Fiber grating demodulation system for enhancing spectral resolution by finely shifting slit

Номер: US20170102268A1
Автор: Fei Luo, Feng Liu, Hong Li, Lianqing Zhu, Mingli Dong, Wei He, Xiaoping Lou
Принадлежит: Beijing Information Science and Technology University

A fiber grating demodulation system for enhancing spectral resolution by finely adjusting a slit, includes a laser pump source, a wavelength division multiplexer, a fiber Bragg grating, a diaphragm, a slit, a collimating mirror, a light splitting grating, an imaging focus mirror, and a linear array detector. The laser pump source, the wavelength division multiplexer, the fiber Bragg grating are connected in sequence, and the wavelength division multiplexer is connected to the diaphragm. Light emitted from the laser pump source is multiplexed by the wavelength division multiplexer and then enters the fiber Bragg grating, a reflection spectrum of the fiber Bragg grating enters the slit of the fiber grating demodulation system as injected light. After passing through the slit, the injected light is reflected by the collimating mirror, the light splitting grating, and the imaging focus mirror in sequence, and is finally converged to the linear array detector.

Подробнее
Номер записи: 56
23-04-2015 дата публикации

SPECTROMETRIC SYSTEMS AND METHODS FOR IMPROVED FOCUS LOCALIZATION OF TIME- AND SPACE-VARYING MEASUREMENTS

Номер: US20150109617A1
Автор: Delp Gary S., Gilbert Barry K., Haider Clifton R., Rose James A.
Принадлежит:

A system and method of dynamically localizing a measurement of parameter characterizing tissue sample with waves produced by spectrometric system at multiple wavelengths and detected at a fixed location of the detector of the system. The parameter is calculated based on impulse response of the sample, reference data representing characteristics of material components of the sample, and path lengths through the sample corresponding to different wavelengths. Dynamic localization is effectuated by considering different portions of a curve representing the determined parameter, and provides for the formation of a spatial map of distribution of the parameter across the sample. Additional measurement of impulse response at multiple detectors facilitates determination of change of the measured parameter across the sample as a function of time. 1. A method for determining a characteristic of a biological sample with a spectrometric system , the spectrometric system including at least one transmitter and at least one receiver , the method comprising:receiving, with a data-processing unit of the system, an output from the at least one receiver caused by emission, by the transmitter, of at least one electromagnetic wave (EMW) at at least one corresponding wavelength, the at least one transmitter and the at least one receiver being operably juxtaposed with the sample, the output representing an optical property of the sample;receiving, with the data-processing unit of the system, reference data representing empirically-defined spectrally-dependent characteristic of the sample;determining an impulse response of the sample, the impulse response being associated with emission of the at least one EMW by the at least one transmitter; anddetermining, as a function of time, a wavelength-dependent material parameter characterizing the sample based on the determined impulse response and the reference data2. A method according to claim 1 , wherein the optical property includes at least ...

Подробнее
Номер записи: 57
20-04-2017 дата публикации

DETERMINING FOCUS CONDITION IN SPECTRAL REFLECTANCE SYSTEM

Номер: US20170108377A1
Автор: CHALMERS Scott A.
Принадлежит:

Embodiments include a spectral reflectance system comprising a light source. The system includes a platform configured to retain a sample. The system includes an optical director positioned in the optical path between the light source and the platform. The optical director couples light from the light source to the platform. The system includes a detector positioned to receive reflected light from the sample. The detector generates a signal representing the reflected light. The system includes a focusing system coupled to the optical director. In response to the signal the focusing system automatically focuses the light on the sample by controlling a position of the optical director to maximize a strength of the signal. 1. A spectral reflectance system , comprising:a light source;a platform configured to retain a sample;an optical director positioned in the optical path between the light source and the platform, wherein the optical director couples light from the light source to the platform;a detector positioned to receive reflected light from the sample, wherein the detector generates a signal representing the reflected light; anda focusing system coupled to the optical director, wherein in response to the signal the focusing system automatically focuses the light on the sample by controlling a position of the optical director to maximize a strength of the signal.2. The spectral reflectance system of claim 1 , wherein the optical director comprises a plurality of mirrors.3. The spectral reflectance system of claim 2 , wherein a first mirror of the plurality of mirrors couples the optical path between the light source and the optical director.4. The spectral reflectance system of claim 3 , wherein a second mirror of the plurality of mirrors couples the optical path between the optical director and the sample.5. The spectral reflectance system of claim 4 , wherein the focusing system controls a length of the optical path by controlling movement of the optical ...

Подробнее
Номер записи: 58
20-04-2017 дата публикации

Optical fiber calibration connector

Номер: US20170108430A1
Автор: Bernardus Hendrikus Wilhelmus Hendriks, Christian Reich, Gerhardus Wilhelmus Lucassen, Jaap Knoester, Johannes Antonius Van Rooij, Klaas Cornelis Jan Wijbrans
Принадлежит: Koninklijke Philips NV

The present invention relates to an optical fiber connector for mating a first group of one or more optical fibers ( 102 ) with one or more corresponding optical fibers in a second group of one or more optical fibers ( 103 ). The optical fiber connector in dudes a shutter ( 105 ), which prevents the ingress of debris into the connector, and provides an optical reference surface with which to calibrate optical fibers that are inserted into the connector. The optical fiber connector finds application in the general optical fiber field, and more particularly finds application in the medical field in which it may be used to connect optical fibers in a photonic needle application.

Подробнее
Номер записи: 59
29-04-2021 дата публикации

A BIREFRINGENT INTERFEROMETER FOR MEASURING PHOTOLUMINESCENCE PROPERTIES OF SAMPLES

Номер: US20210123808A1
Автор: CERULLO Giulio, HAUER Jürgen, PERRI Antonio, POLLI Dario, PREDA Fabrizio
Принадлежит: Politecnico di Milano

A measurement system of photoluminescence properties of a sample, comprises a radiation source module configured to generate a first radiation, an excitation optical path coupled to the radiation source module, a support structured to support a sample to be optically coupled to excitation optical path and adapted to provide a photoluminescence radiation, and collection path coupled to the sample and configured to propagate the photoluminescence radiation. The system also includes an analysis device configured to receive the photoluminescence radiation and provide data/information on photoluminescence properties of sample. At least one path between the excitation path and the collection path comprises a respective adjustable birefringent common-path interferometer module configured to produce first and second radiations adapted to interfere with each other. 1. A measurement system of photoluminescence properties of a sample , comprising:a radiation source module configured to generate a first radiation;an excitation optical path coupled to the radiation source module;a support structured to support a sample to be optically coupled to the excitation optical path and adapted to provide a photoluminescence radiation;a collection path coupled to the sample and configured to propagate said photoluminescence radiation;an analysis device configured to receive the photoluminescence radiation and provide data/information on photoluminescence properties of the sample;wherein at least one path between the excitation path and the collection path comprises a respective adjustable birefringent common-path interferometer module configured to produce first and second radiations adapted to interfere with each other.2. The system of claim 1 , wherein said interferometer module comprises:an adjustable wedge pair, including an optical wedge and a movable optical wedge, configured to provide an adjustable time delay between radiation components having reciprocally orthogonal ...

Подробнее
Номер записи: 60
29-04-2021 дата публикации

DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM

Номер: US20210123810A1
Автор: Hagen Nathan Adrian, KESTER Robert Timothy
Принадлежит:

Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays. 1. An infrared (IR) imaging system , comprising:an optical system comprising at least two optical channels that are spatially and spectrally different from one another and positioned to transfer IR radiation incident on the optical system towards at least two detectors;at least one reference having an unknown temperature and imaged by the at least two detectors; and acquire a plurality of frames from the at least two detectors, the plurality of frames comprising at least one region that corresponds to the at least one reference, and', 'adjust one or more parameters of the at least two detectors based on a temperature estimate of the at least one reference., 'a data-processing unit configured to2. The IR imaging system of claim 1 , wherein the at least one reference is displaced away from a conjugate image plane of the at least two detectors such that an image of the at least one reference claim 1 , captured by the at least two detectors claim 1 , is defocused.3. The IR imaging system of claim 1 , wherein the at least one reference is positioned at a conjugate image ...

Подробнее
Номер записи: 61
11-04-2019 дата публикации

SPECTROSCOPIC DETECTION DEVICE, AND ADJUSTMENT METHOD FOR DETECTION TARGET WAVELENGTH RANGE

Номер: US20190107436A1
Автор: DOHI Masahito
Принадлежит: OLYMPUS CORPORATION

A spectroscopic detection device includes a laser light source configured to emit a laser beam, an objective configured to irradiate a sample with the laser beam, a scanner arranged in an illumination optical path between the laser light source and the objective, a light detector configured to detect light from the sample, a plurality of optical filters arranged in a detection optical path between the objective and the light detector, and a driving device. The driving device rotates the plurality of optical filters in such a manner that at least one of the optical filters has its rotational axis in a direction different from a rotational axis of the other optical filter. 1. A spectroscopic detection device comprising:a laser light source configured to emit a laser beam;an objective configured to irradiate a sample with the laser beam;a scanner arranged in an illumination optical path between the laser light source and the objective;a light detector configured to detect light from the sample;a plurality of optical filters arranged in a detection optical path between the objective and the light detector; anda driving device configured to rotate each of the plurality of optical filters in such a manner that at least one of the plurality of the optical filters has its rotational axis in a direction different from a rotational axis of the other optical filter.2. The spectroscopic detection device according to claim 1 , further comprisinga control device, wherein obtains information on a detection target wavelength range, and', 'controls the driving device according to the obtained information., 'the control device'}3. The spectroscopic detection device according to claim 2 , further comprisinga plurality of filter switching devices, each of a plurality of filter switching devices being configured to switch each of the plurality of optical filters arranged in the detection optical path to different optical filters having incident angle spectral characteristics different ...

Подробнее
Номер записи: 62
28-04-2016 дата публикации

OPTICAL MODULE, ELECTRONIC DEVICE, AND METHOD FOR DRIVING OPTICAL MODULE

Номер: US20160116336A1
Автор: TATSUDA Tetsuo, ZHAO Danjun
Принадлежит:

Provided is an optical module including a wavelength-selective interference filter capable of selecting light of a predetermined wavelength from incident light and changing the wavelength of emitted light, a rolling shutter capturing element in which a light receiving process including a light exposing period for accumulating charges as well as a light blocking period for outputting a detection signal corresponding to the charges accumulated during the light exposing period is sequentially performed in a delayed manner per pixel row configured of a plurality of pixels, and a filter drive unit controlling a wavelength changing drive of the wavelength-selective interference filter. 1. An optical module comprising:a spectroscopic element that is capable of selecting light of a predetermined wavelength from incident light and changing the wavelength of emitted light;a rolling shutter capturing element that includes pixels accumulating charges when being exposed to the emitted light and in which a light receiving process including a light exposing period for accumulating charges at the pixels as well as a light blocking period for outputting a detection signal corresponding to the charges accumulated during the light exposing period is sequentially performed in a delayed manner per pixel block configured of a plurality of the pixels; anda spectroscopic control unit that controls a wavelength changing drive of changing the wavelength of the emitted light in the spectroscopic element,wherein the capturing element includes, as a plurality of pixel blocks overlapping with a predetermined region set in a light reception region for the emitted light, an initial pixel block where the light receiving process is initially performed and a last pixel block where the light receiving process is lastly performed, andthe spectroscopic control unit performs the wavelength changing drive during a period from end of the light exposing period in the last pixel block until subsequent start ...

Подробнее
Номер записи: 63
09-06-2022 дата публикации

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

Номер: US20220178748A1
Автор: Fang Liu, Hongbo Zhu, Kaiyu Cui, Wei Zhang, Xue Feng, Xusheng CAI, Yidong Huang
Принадлежит: TSINGHUA UNIVERSITY

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

Подробнее
Номер записи: 64
09-06-2022 дата публикации

Multi-wavelength Laser Inspection

Номер: US20220178823A1
Автор: Humfeld Keith D., Safai Morteza
Принадлежит:

An example system for inspecting a surface includes a laser, an optical system, a gated camera, and a control system. The laser is configured to emit pulses of light, with respective wavelengths of the pulses of light varying over time. The optical system includes at least one optical element, and is configured to direct light emitted by the laser to points along a scan line one point at a time. The gated camera is configured to record a fluorescent response of the surface from light having each wavelength of a plurality of wavelengths at each point along the scan line. The control system is configured to control the gated camera such that an aperture of the gated camera is open during fluorescence of the surface but closed during exposure of the surface to light emitted by the laser. 120-. (canceled)21. A system for inspecting a surface , comprising: direct a first pulse of light having a first wavelength to a first point along a scan line and a second pulse of light having a second wavelength to a second point along the scan line during a first time period, and', 'direct a third pulse of light having the first wavelength to the second point and a fourth pulse of light having the second wavelength to the first point during a second time period; and, 'an optical system including at least one optical element, the optical system configured to record a first fluorescent response of the surface to the first pulse of light and a second fluorescent response of the surface to the second pulse of light, and', 'record a third fluorescent response of the surface to the third pulse of light and a fourth fluorescent response of the surface to the fourth pulse of light., 'a gated camera configured to22. The system of claim 21 , wherein:the gated camera comprises an image intensifier, andthe system further comprises a control system configured to control the image intensifier such that an aperture of the gated camera is closed during exposure of the surface to the pulses of light ...

Подробнее
Номер записи: 65
09-04-2020 дата публикации

REFLECTOMETRY INSTRUMENT AND METHOD FOR MEASURING MACULAR PIGMENT

Номер: US20200107723A1
Автор: Burke Jeff Alan, DeHoog Edward Allen, Engel Nathan Franklin, Huter Scott J., Magrini Kevin Martin
Принадлежит:

A reflectometry instrument includes a light source for emitting an illumination beam that illuminates the macula. A portion of the illumination beam is reflected from the macula and forms a detection beam. The detection beam is indicative of macular pigment in the macula. The instrument also includes a first mirror for reflecting the illumination beam toward the macula and for reflecting the detection beam from the macula. The instrument is configured so that the illumination beam and the detection beam remain separated between the macula and the first mirror. 128-. (canceled)29. A reflectometry instrument for illuminating a macula of a human eye , comprising:a light source for emitting an illumination beam, the illumination beam illuminating the macula, a portion of the illumination beam being reflected from the macula and forming a detection beam, the detection beam being indicative of macular pigment in the macula; anda first mirror for reflecting the illumination beam toward the macula and for reflecting the detection beam from the macula,wherein the illumination beam and the detection beam remain separated between the macula and the first mirror.30. The reflectometry instrument of claim 29 , wherein the illumination beam and the detection beam reflect off the first mirror offset from each other.31. The reflectometry instrument of claim 29 , wherein an incident ray of the illumination beam and a reflected ray of the detection beam at the first mirror are parallel.32. The reflectometry instrument of claim 29 , further comprising:a series of mirrors for reflecting the illumination beam toward the macula and for reflecting the detection beam from the macula,wherein the first mirror is included within the series of mirrors.33. The reflectometry instrument of claim 32 , wherein the series of mirrors includes a D-shaped mirror claim 32 , the D-shaped mirror being arranged relative to the path of the illumination beam to allow the illumination beam to pass by the D- ...

Подробнее
Номер записи: 66
27-04-2017 дата публикации

Systems, devices and methods for analyzing and processing samples

Номер: US20170115205A1
Автор: Donald A. Ice, Rudolf J. Hofmeister, Scott W. Tandy
Принадлежит: H2optx Inc

An example embodiment may include a hyperspectral analyzation subassembly configured to obtain information for a sample. The hyperspectral analyzation subassembly may include one or more transmitters configured to generate electromagnetic radiation electromagnetically coupled to the sample, one or more sensors configured to detect electromagnetic radiation electromagnetically coupled to the sample, and an electromagnetically transmissive window. At least one of the sensors may be configured to detect electromagnetic radiation from the sample via the window. The hyperspectral analyzation subassembly may include an analyzation actuation subassembly configured to actuate at least a portion of the hyperspectral analyzation subassembly in one or more directions of movement with respect to the sample.

Подробнее
Номер записи: 67
18-04-2019 дата публикации

LUMINESCENCE BASED FIBER OPTIC PROBE FOR THE DETECTION OF RARE EARTH ELEMENTS

Номер: US20190115199A1
Автор: Ahern John C., Baltrus John P., JR. Paul R., Ohodnicki, Poole Zsolt
Принадлежит:

The disclosure relates to an apparatus, method and process for detecting rare earth elements. The system includes an LED powered by a first power source and a focusing lens in optical communication with the LED. A shortpass filter is in optical communication with the focusing lens; and a fiber bifurcated cable in optical communication with the shortpass filter. The system includes a probe tip in optical communication with the fiber bifurcated cable and a sample; a first aspheric lens in optical communication with the fiber bifurcated cable. A longpass filter is in optical communication with the first aspheric lens and a second aspheric lens in optical communication with the longpass filter. The system includes a spectrometer connected to a power source, where the spectrometer is in optical communication with the second aspheric lens. 1. An apparatus for detection of rare earth elements comprising:A light source providing one or more luminescent signals;a shortpass filter that reduces low energy emissions from the light source, the shortpass filter in optical communication with at least the light source;a fiber bifurcated cable in optical communication with at least the shortpass filter and a sample, the fiber bifurcated cable providing and receiving one or more luminescent signals;a longpass filter in optical communication with the fiber bifurcated cable receiving the one or more luminescent signals; anda longpass filter is in optical communication with a spectrometer which analyzes the one or more luminescent signals.2. (canceled)3. The apparatus of the light source is an LED light source having a wavelength of about 400 nm or shorter.4. The apparatus of wherein the LED light source has a wavelength of about 365 nm and an output between about 1.15 W and about 1.4 W.5. The apparatus of further comprising a focusing lens in optical communication with the light source and the shortpass filter.6. The apparatus of wherein the shortpass filter comprises a shortpass ...

Подробнее
Номер записи: 68
09-06-2022 дата публикации

MOBILE GAS AND CHEMICAL IMAGING CAMERA

Номер: US20220182560A1
Автор: Hagen Nathan Adrian, KESTER Robert Timothy
Принадлежит:

In one embodiment, 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 an optical focal plane array (FPA) unit. 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. Said optical system and said processing unit can be contained together in a data acquisition and processing module configured to be worn or carried by a person. 1. A method for imaging a target species in an object , the method comprising:receiving, by an optical system, infrared (IR) radiation, wherein said optical system comprises an optical focal plane array (FPA) unit and at least one lens array of a lens assembly configured to achieve an f-number less than 2; andprocessing, by the optical system, multispectral optical data representing said target species from the IR radiation.2. The method of claim 1 , wherein the optical system comprises a data acquisition and processing module including a communication module claim 1 , wherein the method further comprises:communicating data from the communication module with at least one device physically separate from said data acquisition and processing module, wherein said at least one device comprises eyewear comprising a display.3. The method of claim 2 , wherein said data acquisition and processing module is associated with a dimension of less than 2 inches×2 inches×6 inches.4. The method of claim 2 , wherein said data acquisition and processing module is associated with a ...

Подробнее
Номер записи: 69
05-05-2016 дата публикации

FABRY-PEROT SPECTRAL IMAGE MEASUREMENT

Номер: US20160123809A1
Автор: Finkelstein Hod, Learmonth Timothy
Принадлежит:

A system for wide-range spectral measurement includes one or more broadband sources, an adjustable Fabry-Perot etalon, and a detector. The one or more broadband sources is to illuminate a sample, wherein the one or more broadband sources have a short broadband source coherence length. The adjustable Fabry-Perot etalon is to optically process the reflected light to extract spectral information with fine spectral resolution. The detector is to detect reflected light from the sample, wherein the reflected light is comprised of multiple narrow-band subsets of the illumination light having long coherence lengths and is optically processed using a plurality of settings for the adjustable Fabry-Perot etalon, and wherein the plurality of settings includes a separation of the Fabry-Perot etalon plates that is greater than the broadband source coherence length but that is less than the long coherence lengths. 1. A system for wide-range spectral measurement , comprising:one or more broadband sources to illuminate a sample, wherein the one or more broadband sources have a short broadband source coherence length;an adjustable Fabry-Perot etalon to optically process the reflected light to extract spectral information with fine spectral resolution; anda detector to detect reflected light from the sample, wherein the reflected light is comprised of multiple narrow-band subsets of the illumination light having long coherence lengths and is optically processed using a plurality of settings for the adjustable Fabry-Perot etalon, and wherein the plurality of settings includes a separation of the Fabry-Perot etalon plates that is greater than the broadband source coherence length but that is less than the long coherence lengths.2. A system as in claim 1 , wherein light from the broadband source is reflected by a beam splitter toward a lens to illuminate the sample.3. A system as in claim 2 , wherein the light from the broadband source illuminates the sample at a first numerical aperture ...

Подробнее
Номер записи: 70
24-07-2014 дата публикации

Micro purge of plasma region

Номер: US20140204375A1
Автор: David Day
Принадлежит: Sciaps Inc

An analysis system includes a laser source generating a laser beam for creating a plasma at a location on a sample. A spectrometer is responsive to photons emitted by the sample at said location and has an output. At least one nozzle is configured to deliver inert gas from a source locally to the location on the sample. A controller is responsive to a trigger signal and is configured to activate the laser source generating a series of laser pulses, open a valve to purge the location locally on the sample, and close the valve after one or more laser pulses.

Подробнее
Номер записи: 71
21-05-2015 дата публикации

DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM

Номер: US20150136981A1
Автор: Hagen Nathan Adrian, KESTER Robert Timothy
Принадлежит:

Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays. 1. An infrared (IR) imaging system for determining a concentration of a target species in an object , the imaging system comprising:an optical system including an optical focal plane array (FPA) unit that is devoid of a cooling means, the optical system configured to receive IR radiation from the object along at least two optical channels defined by components of the optical system, said at least two optical channels being spatially and spectrally different from one another;first and second temperature-controlled shutters removably positioned to block IR radiation incident onto the optical system from the object; anda processor configured to acquire multispectral optical data representing said target species from the received IR radiation in a single occurrence of data acquisition.2. A method of operating an infrared (IR) imaging system , comprising:receiving IR radiation from an object along at least two optical channels defined by components of an optical system of the IR imaging system, said at least two optical channels being spatially and spectrally different from ...

Подробнее
Номер записи: 72
21-05-2015 дата публикации

DIVIDED-APERTURE INFRA-RED SPECTRAL IMAGING SYSTEM

Номер: US20150136982A1
Автор: Hagan Nathan A., Kester Robert T.
Принадлежит:

Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays. 1. An infrared (IR) imaging system , the imaging system comprising:a plurality of cameras;at least one thermal reference source having a known temperature placed in front of the plurality of cameras and configured to be imaged by the plurality of cameras; and acquire with the plurality of cameras a plurality of frames having regions that correspond to the image of the reference source; and', 'apply a dynamic calibration correction to the plurality of cameras to allow every camera in the plurality of cameras to be calibrated to agree with every other camera in the plurality imaging the reference source., 'a data-processing unit comprising a processor, the imaging system configured to2. The system of claim 1 , wherein the plurality of cameras comprises an FPA unit and a plurality of lenses.3. The system of claim 2 , wherein the FPA unit comprises one FPA or a plurality of FPAs.4. The system of claim 1 , wherein the at least one thermal reference source has a known spectrum.5. The system of claim 4 , further comprising an additional thermal reference source imaged by the ...

Подробнее
Номер записи: 73
02-05-2019 дата публикации

FOCUS SCANNING APPARATUS RECORDING COLOR

Номер: US20190125501A1
Автор: ESBECH Bo, Hollenbeck Karl-Josef, KJÆR Rasmus, ROSBERG Christian Romer, Van Der Poel Mike, VINTHER Michael
Принадлежит: 3Shape A/S

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

Подробнее
Номер записи: 74
10-05-2018 дата публикации

SPECTROMETER WITH ACTIVE BEAM STEERING

Номер: US20180128678A1
Автор: Beyer Douglas, FEITISCH Alfred, Helbley Keith Benjamin, LIU Xiang
Принадлежит:

A spectrometer includes a light source that emits a beam into a sample volume comprising an absorbing medium. Thereafter, at least one detector detects at least a portion of the beam emitted by the light source. It is later determined, based on the detected at least a portion of the beam and by a controller, that a position and/or an angle of the beam should be changed. The beam emitted by the light source is then actively steered by an actuation element under control of the controller. In addition, a concentration of the absorbing media can be quantified or otherwise calculated (using the controller or optionally a different processor that can be local or remote). The actuation element(s) can be coupled to one or more of the light source, a detector or detectors, and a reflector or reflectors intermediate the light source and the detector(s). 1. An apparatus comprising:a light source configured to emit a beam into a sample volume comprising an absorbing medium;at least one detector positioned to detect at least a portion of the beam emitted by the light source;at least one actuation element configured to selectively cause the beam emitted by the light source to be steered; anda controller coupled to the at least one actuation element, the controller element configured to at least cause the at least one actuation element to steer the beam to adjust a position and/or an angle of the beam.2. The apparatus of claim 1 , wherein the at least one actuation element is coupled to the light source and/or the at least one detector.3. (canceled)4. The apparatus of claim 1 , wherein the at least one actuation element is coupled to a transmissive optical element and/or a reflective optical element intermediate the light source and the at least one detector.5. The apparatus of claim 1 , wherein the absorbing medium comprises a gas claim 1 , a liquid claim 1 , a reflective media claim 1 , an emitting media claim 1 , and/or a Raman active media.6. The apparatus of claim 1 , further ...

Подробнее
Номер записи: 75
02-05-2019 дата публикации

SPECTROMETRIC APPARATUS AND SPECTROMETRIC METHOD

Номер: US20190128737A1
Автор: Saito Daisuke
Принадлежит:

A spectrometric apparatus includes: an excitation light source that outputs excitation light to a measurement target; a light source control section that controls driving of the excitation light source; and a measurement section that performs spectrometry of light reflected by the measurement target, in which a plurality of types of the excitation light sources are provided corresponding to a plurality of types of fluorescence having different peak wavelengths, and in which the light source control section sequentially changes the excitation light sources to be turned on in a manner to turn on one type of the excitation light sources among the plurality of types of the excitation light sources and turn off other types of excitation light sources. 1. A spectrometric apparatus comprising:an excitation light source that outputs excitation light to a measurement target;a light source controller that controls driving of the excitation light source; anda measurement section that performs spectrometry of light reflected by the measurement target,wherein a plurality of types of the excitation light sources are provided corresponding to a plurality of types of fluorescence having different peak wavelengths, andwherein the light source controller sequentially changes the excitation light sources to be turned on in a manner to turn on one type of the excitation light sources among the plurality of types of the excitation light sources and turn off other types of excitation light sources.2. The spectrometric apparatus according to claim 1 ,wherein the excitation light source includes a first excitation light source that outputs first excitation light having a peak wavelength in a wavelength range of 420 nm or more and less than 490 nm.3. The spectrometric apparatus according to claim 1 ,wherein the excitation light source includes a second excitation light source that outputs second excitation light having a peak wavelength in a wavelength range of 490 nm or more and less than ...

Подробнее
Номер записи: 76
23-04-2020 дата публикации

Divided-aperture infra-red spectral imaging system

Номер: US20200124470A1
Автор: Nathan Adrian Hagen, Robert Timothy Kester
Принадлежит: Rebellion Photonics Inc

Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays.

Подробнее
Номер записи: 77
23-04-2020 дата публикации

OPTICAL DEVICE

Номер: US20200124472A1
Автор: HOSOKAWA Noburo, KOTANI Kyosuke, KURAMOTO Yutaka, Shibayama Katsumi, SUGIMOTO Tatsuya, Suzuki Tomofumi
Принадлежит: HAMAMATSU PHOTONICS K.K.

In an optical device, a base and a movable unit are constituted by a semiconductor substrate including a first semiconductor layer, an insulating layer, and a second semiconductor layer in this order from one side in a predetermined direction. The base is constituted by the first semiconductor layer, the insulating layer, and the second semiconductor layer. The movable unit includes an arrangement portion that is constituted by the second semiconductor layer. The optical function unit is disposed on a surface of the arrangement portion on the one side. The first semiconductor layer that constitutes the base is thicker than the second semiconductor layer that constitutes the base. A surface of the base on the one side is located more to the one side than the optical function unit. 1. An optical device comprising:a base that includes a main surface;a movable unit that is supported in the base to be movable along a predetermined direction that intersects the main surface; andan optical function unit that is disposed on the movable unit,wherein the base and the movable unit are constituted by a semiconductor substrate that includes a first semiconductor layer, an insulating layer, and a second semiconductor layer in this order from one side in the predetermined direction,the base is constituted by the first semiconductor layer, the insulating layer, and the second semiconductor layer,the movable unit includes an arrangement portion that is constituted by the second semiconductor layer,the optical function unit is disposed on a surface of the arrangement portion on the one side,the first semiconductor layer that constitutes the base is thicker than the second semiconductor layer that constitutes the base, anda surface of the base on the one side is located more to the one side than the optical function unit.2. The optical device according to claim 1 ,wherein the movable unit further includes a rib portion that is disposed at the periphery of the optical function unit,the ...

Подробнее
Номер записи: 78
23-04-2020 дата публикации

Mirror unit and optical module

Номер: US20200124473A1
Автор: Hirokazu Yamamoto, Katsumi Shibayama, Kyosuke KOTANI, Noburo Hosokawa, Takuo Koyama, Tatsuya Sugimoto, Tomofumi Suzuki, Yutaka Kuramoto
Принадлежит: Hamamatsu Photonics KK

A mirror unit 2 includes a mirror device 20 including a base 21 and a movable mirror 22, an optical function member 13, and a fixed mirror 16 that is disposed on a side opposite to the mirror device 20 with respect to the optical function member 13. The optical function member 13 is provided with a light transmitting portion 14 that constitutes a part of an optical path between the beam splitter unit 3 and the fixed mirror 16. The light transmitting portion 14 is a portion that corrects an optical path difference that occurs between an optical path between the beam splitter unit 3 and the movable mirror 22 and the optical path between the beam splitter unit 3 and the fixed mirror 16. The second surface 21b of the base 21 and the third surface 13a of the optical function member 13 are joined to each other.

Подробнее
Номер записи: 79
23-04-2020 дата публикации

OPTICAL MODULE

Номер: US20200124479A1
Автор: HOSOKAWA Noburo, KOTANI Kyosuke, KURAMOTO Yutaka, Shibayama Katsumi, SUGIMOTO Tatsuya, Suzuki Tomofumi
Принадлежит: HAMAMATSU PHOTONICS K.K.

An optical module A includes a mirror unit including a movable mirror and a fixed mirror , a beam splitter unit , a light incident unit , a first light detector , a second light source , a second light detector , a holding unit , a first mirror , a second mirror , and a third mirror . The holding unit holds the first light detector , the second light detector , and the second light source so as to face that same side, and to be aligned in this order. A length of an optical path between the unit and the detector is shorter than a length of an optical path between the unit and the detector , and a length of an optical path between the unit and the source 1. An optical module comprising:a mirror unit that includes a base including a first surface, a movable mirror that is supported in the base to be movable along a first direction that intersects the first surface, and a fixed mirror of which a position with respect to the base is fixed;a beam splitter unit that is disposed on one side of the mirror unit in the first direction, and constitutes an interference optical system in combination with the movable mirror and the fixed mirror;a light incident unit that causes measurement light that is incident from a first light source through a measurement target or measurement light that occurs from the measurement target to be incident to the beam splitter unit;a first light detector that detects interference light of the measurement light which is emitted from the beam splitter unit;a second light source that emits laser light to be incident to the beam splitter unit;a second light detector that detects interference light of the laser light which is emitted from the beam splitter unit;a holding unit that holds a first optical device, a second optical device, and a third optical device so that the first optical device that is the first light detector, the second optical device that is one of the second light source and the second light detector, and the third optical device ...

Подробнее
Номер записи: 80
23-04-2020 дата публикации

OPTICAL MODULE

Номер: US20200124480A1
Автор: KOTANI Kyosuke, KURAMOTO Yutaka, SUGIMOTO Tatsuya, Suzuki Tomofumi
Принадлежит: HAMAMATSU PHOTONICS K.K.

An optical module includes: a mirror unit including a base , a movable mirror , and a fixed mirror ; a beam splitter unit that is disposed on one side of the mirror unit in a Z-axis direction; a light incident unit that causes measurement light L0 to be incident to the beam splitter unit ; a first light detector that is disposed on the one side of the beam splitter unit in the Z-axis direction, and detects interference light L of measurement light which is emitted from the beam splitter unit ; a support to which the mirror unit is attached; a first support structure that supports the beam splitter unit ; and a second support structure that is attached to the support and supports the first light detector 1. An optical module comprising:a mirror unit that includes a base including a first surface, a movable mirror that is supported in the base to be movable along a first direction that intersects the first surface, and a fixed mirror of which a position with respect to the base is fixed;a beam splitter unit that is disposed on one side of the mirror unit in the first direction, and constitutes an interference optical system in combination with the movable mirror and the fixed mirror;a light incident unit that causes measurement light that is incident from a first light source through a measurement target or measurement light that occurs from the measurement target to be incident to the beam splitter unit;a first light detector that is disposed on the one side of the beam splitter unit in the first direction, and detects interference light of the measurement light which is emitted from the beam splitter unit;a support to which the mirror unit is attached;a first support structure that supports the beam splitter unit; anda second support structure that is attached to the support and supports the first light detector.2. The optical module according to claim 1 ,wherein the first support structure is attached to the support.3. The optical module according to claim 1 , ...

Подробнее
Номер записи: 81
23-04-2020 дата публикации

MOBILE GAS AND CHEMICAL IMAGING CAMERA

Номер: US20200128196A1
Автор: KESTER Robert Timothy
Принадлежит:

In one embodiment, 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 an optical focal plane array (FPA) unit. 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. Said optical system and said processing unit can be contained together in a data acquisition and processing module configured to be worn or carried by a person. 1165-. (canceled)166. An optical system comprising:an optical detector;a lens spaced from the optical detector along an axis, the lens positioned to transfer light to the optical detector;a first thermal element comprising a first material having a first coefficient of thermal expansion (CTE); anda second thermal element mechanically and thermally coupled to the first thermal element and the lens, wherein the second thermal element comprises a second material having a second CTE, and wherein the second CTE is different from the first CTE;wherein, in response to a temperature change, respective lengths of the first and second thermal elements change so as to adjust a position of the lens relative to the optical detector along the axis.167. The system of claim 166 , further comprising a base structure claim 166 , wherein the optical detector is coupled with the base structure.168. The system of claim 167 , wherein the first thermal element is mechanically and thermally coupled with the base structure.169. The system of claim 166 , wherein a focal length of the ...

Подробнее
Номер записи: 82
17-05-2018 дата публикации

OPTICAL ARRAY WAVEGUIDE GRATING-TYPE MULTIPLEXER AND DEMULTIPLEXER AND CAMERA MODULE COMPRISING THE SAME

Номер: US20180136394A1
Автор: KANG Lee Im, LEE Chang Hyuck
Принадлежит: LG INNOTEK CO., LTD.

An optical array waveguide grating-type multiplexer and demultiplexer according to an embodiment of the present invention comprise: a first substrate, a plurality of first waveguides disposed on the first substrate to be superposed in the vertical direction, which is the thickness direction of the first substrate; a 1-1st cladding layer disposed between the first substrate and a 1-1st waveguide, which is nearest to the first substrate among the plurality of first waveguides; a 1-2nd cladding layer disposed between the plurality of first waveguides; and a 1-3rd cladding layer disposed on a 1-2nd waveguide, which is furthest from the first substrate among the plurality of first waveguides. 1. An optical arrayed waveguide grating-type multiplexer and demultiplexer , comprising:a first substrate;a plurality of first waveguides disposed on the first substrate so as to overlap each other in a vertical direction, which is a thickness direction of the first substrate;a 1-1 cladding layer disposed between a 1-1 waveguide, which is a one of the first waveguides that is closest to the first substrate, and the first substrate;a 1-2 cladding layer disposed between the first waveguides; anda 1-3 cladding layer disposed on a 1-2 waveguide, which is a one of the first waveguides that is farthest from the first substrate.2. The multiplexer and demultiplexer according to claim 1 , further comprising at least one first core disposed in each of the first waveguides claim 1 ,wherein the first core includes a total reflective material.3. The multiplexer and demultiplexer according to claim 1 , further comprising:1-1 and 1-2 free propagation regions disposed on the first substrate so as to be spaced apart from each other in a horizontal direction, which is perpendicular to the vertical direction,wherein the 1-1, 1-2, and 1-3 cladding layers and the first waveguides are disposed between the 1-1 and 1-2 free propagation regions.4. The multiplexer and demultiplexer according to claim 1 , ...

Подробнее
Номер записи: 83
18-05-2017 дата публикации

ARRANGEMENT FOR THE SPECTROMETRIC MEASUREMENT OF PRODUCTS SUCH AS CEREALS, OLEAGINOUS PRODUCTS OR DERIVED PRODUCTS

Номер: US20170138864A1
Автор: Huret Vincent, Lopez Eric
Принадлежит:

An arrangement for the spectrometric measurement of products, such as cereals, oleaginous products, or derived products, includes a mechanism for selective adjustment of the position of a light beam in vertical and horizontal planes, and a selective adjustment device for ensuring that rays of the light beam are parallel. 1. A spectrometric measurement arrangement for analysis of a sample of a product and comprising:a light source for producing a light beam,a readout chamber crossed by the light beam for reading out and analyzing the sample of the product located in the readout chamber,a tank of the product to be analyzed,a feeding device feeding the product from the tank and into the readout chamber, wherein the feeding device is movable between an obturating position, preventing flow of the product from the tank into the readout chamber, and an open position allowing flow of the product from the tank and into the readout chamber, for controlling amount of the product flowing into the readout chamber,a discharge device for discharging the product from the readout chamber,a selective adjustment mechanism for adjusting position of the light beam in vertical and horizontal planes,a selective adjustment device for ensuring that rays of the light beam are parallel to each other.2. The arrangement according to claim 1 , whereinthe feeding device comprises a rotary cylinder located in a bottom of the tank and including a bore for passage of the product, andthe bore, in the open position of the feeding device, forms a tilt angle relative to the horizontal plane, as a tilted ramp, for sliding of the product into the readout chamber.3. The arrangement according to claim 2 , wherein the tilt angle is different for different products.4. The arrangement according to claim 3 , wherein the amount of the product flowing into the readout chamber from the tank is established by how long the feeding device is in the open position.5. The arrangement according to claim 2 , wherein the ...

Подробнее
Номер записи: 84
08-09-2022 дата публикации

SUPPORT STRUCTURE AND METHOD FOR FOCUS ADJUSTMENT

Номер: US20220283026A1
Автор: Deck Francis, Meyer Matthew
Принадлежит:

An embodiment of a support structure for adjusting the position of a plurality of optical elements is described that comprises a base plate comprising a centering pin, a first translation slot, and a second translation slot; and a translatable plate configured to operatively couple with a plurality of the optical elements and move relative to the base plate, wherein the translatable plate comprises a centering slot configured to engage with the centering pin, a first cam configured to engage with the first translation slot and control movement of the translatable plate along a first axis, and a second cam configured to engage with the second translation slot and control movement of the translatable plate along a second axis. 1. A support structure for adjusting the position of a plurality of optical elements , comprising:a base plate comprising a centering pin, a first translation slot, and a second translation slot; anda translatable plate configured to operatively couple with a plurality of the optical elements and move relative to the base plate, wherein the translatable plate comprises a centering slot configured to engage with the centering pin, a first cam configured to engage with the first translation slot and control movement of the translatable plate along a first axis, and a second cam configured to engage with the second translation slot and control movement of the translatable plate along a second axis.2. The support structure of claim 1 , wherein:the optical elements comprise mirrors.3. The support structure of claim 1 , wherein:the movement of the translatable plate along the first axis is configured to enable alignment of a spectrograph.4. The support structure of claim 3 , wherein:the movement of the translatable plate along the second axis comprise linear movement of the centering pin in the centering slot.5. The support structure of claim 3 , wherein:the first axis is substantially parallel to the centering slot.6. The support structure of claim 3 ...

Подробнее
Номер записи: 85
08-09-2022 дата публикации

Color measurement apparatus

Номер: US20220283033A1
Автор: Haruki Miyasaka, Hisayuki Akahane, Kenichi Furuya, Toshio Miyake
Принадлежит: Seiko Epson Corp

A color measurement apparatus includes an opening portion that is formed in an opening portion forming member arranged in a bottom portion of the apparatus and causes light arriving from a measurement target to enter inside the apparatus, a light emission portion that emits light for measurement toward the measurement target, and a shutter unit that is configured to switch between a closed state in which the opening portion is covered, and an open state in which the opening portion is open, and that has a reflection reference surface at a position facing the opening portion in the closed state as a reference of reflectance, in which the shutter unit is disposed such that the shutter unit is configured to switch to, in addition to the closed state and the open state, an exposed state in which the reflection reference surface is exposed outside the apparatus.

Подробнее
Номер записи: 86
10-06-2021 дата публикации

OPTICAL DEVICE ALLOWING THE ANGULAR AND SPECTRAL EMISSION OF AN OBJECT TO BE MEASURED SIMULTANEOUSLY

Номер: US20210172802A1
Автор: LEROUX Thierry
Принадлежит:

System () for measuring the spatial distribution of the spectral emission of a measurement zone () of an object (), comprising: a first objective (); means () for selecting a portion of an image formed by the first objective; a diaphragm (); light-dispersing means () located in the vicinity of the diaphragm and allowing the light coming from the selecting means to be dispersed; a second objective () placed between the selecting means and the diaphragm, interacting with the first objective so that the aperture of the diaphragm is optically conjugated with the measurement zone by the first and second objectives and so that the measurement zone. According to the invention, the first objective forms an image on a predetermined Fourier surface on which each point corresponds to an emission direction of the object for one particular wavelength, the selecting means have a selection surface shaped depending on the predetermined Fourier surface, and the selecting means are placed on the predetermined Fourier surface. 2208. System according to the preceding claim wherein the diaphragm () has a circular opening.3. System according to any of the preceding claims , wherein the dispersion means are formed by the combination of a prism , a transmitting network and a prism arranged to disperse the light in one direction and bring the dispersed rays together about the optical axis of the system , the diaphragm being incorporated in this device as close as possible to the transmitting network.4204210. System according to any of the preceding claims , comprising means of simultaneous rotation of the selecting means () and light-dispersion means () , about the optical axis of the system. The present invention relates to a measuring device allowing the angular and spectral distribution of an object to be measured simultaneously. It applies to objects such as emissive screens like liquid crystal screens, plasma screens, electroluminescent screens or other types of screen and lighting ...

Подробнее
Номер записи: 87
21-08-2014 дата публикации

CONCEALED DANGEROUS ARTICLES DETECTION METHOD AND DEVICE

Номер: US20140231649A1
Автор: Chen Zhiqiang, Wang Yingxin, Wu Wanlong, Zhao Ziran
Принадлежит:

A method and an apparatus for detecting hidden hazardous substance including the steps of: performing terahertz imaging for a detected object; judging whether there is a suspicious area containing the hidden hazardous substance in a terahertz image of the detected object obtained by the terahertz imaging; performing a multi-wavelength spectroscopy measurement to the suspicious area, determining whether the hazardous substance is contained in the suspicious area according to results of multi-wavelength spectroscopy measurement; and outputting the image of the detected object and hazardous substance detecting result. Also disclosed is an apparatus for implementing the method for detecting the hidden hazardous substance according to the present invention. Determination of the hidden hazardous substance can be performed from the perspectives of shape features and substance composition, thus the accuracy of detection is greatly increased. 1. A method for detecting hidden hazardous substance , comprising the following steps:performing terahertz imaging for a detected object;judging whether there is a suspicious area containing the hidden hazardous substance in a terahertz image of the detected object obtained by terahertz imaging;performing a multi-wavelength spectroscopy and measurement to the suspicious area that might contain the hazardous substance, and determining whether the hazardous substance is contained in the suspicious area according to results of multi-wavelength spectroscopy and measurement; andoutputting the terahertz image of the detected object and hazardous substance detecting result.2. The method according to claim 1 , wherein the step of performing terahertz imaging for the detected object comprises:adjusting a terahertz emitter to operate at an imaging wavelength;collimating and focusing the terahertz radiation outputted by the terahertz emitter, and outputting the terahertz radiation to the detected object;collecting the terahertz radiation reflected ...

Подробнее
Номер записи: 88
15-09-2022 дата публикации

System and method for facilitating optical raster scanning

Номер: US20220291501A1
Автор: James F. Gass, Ruibo Wang
Принадлежит: Oak Analytics Inc

One embodiment provides an apparatus for facilitating raster scanning of an optical spectrometer. The apparatus can include an enclosure, a lens holder situated within the enclosure, and an actuation mechanism coupled to the lens holder. The lens holder is configured to hold a lens that focuses excitation light onto a sample surface, and the actuation mechanism is configured to cause the lens holder to perform a motion according to a predetermined pattern, thereby causing the focused excitation light to raster scan the sample surface.

Подробнее
Номер записи: 89
17-06-2021 дата публикации

A SYSTEM FOR PERFORMING SPECTROSCOPY

Номер: US20210181018A1
Автор: Shao Peng, Yun Seok-Hyun
Принадлежит:

A system for performing spectroscopy on a target is provided. In some aspects, the system includes an optical assembly that includes an optical source configured to generate light at one or more frequencies to be directed to a target. The optical assembly also includes at least one optical filter configured to select desired light signals coming from the target, wherein the at least one optical filter comprises an etalon and at least one reflecting surface external to the etalon, the at least one reflecting surface being configured to redirect to the etalon, at least once, an incident beam reflected from the etalon. 1. A system for performing spectroscopy on a target , the system comprising: an optical source configured to generate light at one or more frequencies to be directed to a target;', 'at least one optical filter configured to select desired light signals coming from the target, wherein the at least one optical filter comprises an etalon and at least one reflecting surface external to the etalon, the at least one reflecting surface being configured to redirect to the etalon, at least once, an incident beam reflected from the etalon; and', 'a virtually imaged phased array coupled to the at least one optical filter., 'an optical assembly comprising2. The system of claim 1 , wherein the at least one optical filter comprises a notch filter.3. The system of claim 1 , wherein the optical source comprises a diode laser or a semiconductor laser.4. The system of claim 1 , wherein the virtually imaged phased array is coupled to an imager configured to detect the desired light signals.5. The system of claim 1 , wherein the system further comprises another filter claim 1 , positioned between the optical source and the target claim 1 , and configured to reduce a noise background in the light generated by the optical source.6. The system of claim 5 , wherein the another filter is a bandpass filter comprising another etalon and at least one other reflecting surface ...

Подробнее
Номер записи: 90
17-06-2021 дата публикации

Gas imaging system

Номер: US20210181099A1
Автор: Ohad Israel Balila, Robert Timothy Kester
Принадлежит: Rebellion Photonics Inc

A spectral imaging system configured to obtain spectral measurements in a plurality of spectral regions is described herein. The spectral imaging system comprises at least one optical detecting unit having a spectral response corresponding to a plurality of absorption peaks of a target chemical species. In an embodiment, the optical detecting unit may comprise an optical detector array, and one or more optical filters configured to selectively pass light in a spectral range, wherein a convolution of the responsivity of the optical detector array and the transmission spectrum of the one or more optical filters has a first peak in mid-wave infrared spectral region between 3-4 microns corresponding to a first absorption peak of methane and a second peak in a long-wave infrared spectral region between 6-8 microns corresponding to a second absorption peak of methane.

Подробнее
Номер записи: 91
17-06-2021 дата публикации

OPTICAL ARRAY WAVEGUIDE GRATING-TYPE MULTIPLEXER AND DEMULTIPLEXER AND CAMERA MODULE COMPRISING THE SAME

Номер: US20210181413A1
Автор: KANG Lee Im, LEE Chang Hyuck
Принадлежит: LG INNOTEK CO., LTD.

An optical array waveguide grating-type multiplexer and demultiplexer according to an embodiment of the present invention comprise: a first substrate, a plurality of first waveguides disposed on the first substrate to be superposed in the vertical direction, which is the thickness direction of the first substrate; a 1-1st cladding layer disposed between the first substrate and a 1-1st waveguide, which is nearest to the first substrate among the plurality of first waveguides; a 1-2nd cladding layer disposed between the plurality of first waveguides; and a 1-3rd cladding layer disposed on a 1-2nd waveguide, which is furthest from the first substrate among the plurality of first waveguides. 1. A camera module , comprising:a lens driving apparatus collecting image information of an object;a spectrometer collecting physical property information of the object; andan image sensor processing the image information of the object collected by the lens driving apparatus and the physical property information of the object collected by the spectrometer.2. The camera module according to claim 1 , wherein the spectrometer comprises:a light emission unit emitting light to the object;a collimator collecting and aligning reflected light generated as a result of the light emitted from the light emission unit and being reflected by the object; andan optical integrated circuit splitting the reflected light aligned by the collimator.3. The camera module according to claim 2 , further comprising a driving unit controlling the light emission unit.4. The camera module according to claim 2 , further comprising a total reflection unit changing an optical path of the reflected light split by the optical integrated circuit.5. The camera module according to claim 4 , wherein the total reflection unit comprises an inclined part to change the path of light transmitted to the total reflection unit and to transmit the light to the image sensor.6. The camera module according to claim 4 , wherein the ...

Подробнее
Номер записи: 92
22-09-2022 дата публикации

Wavelength selection module, illumination system and metrology system

Номер: US20220299365A1
Автор: Gerbrand Van Der Zouw, Jacob Sonneveld, Marinus Johannes Maria VAN DAM, Ramon Pascal Van Gorkom
Принадлежит: ASML Netherlands BV

Disclosed is a wavelength selection module for a metrology apparatus. The wavelength selection module comprises one or more filter elements being operable to receive an input radiation beam comprising multiple wavelengths to provide selective control of a wavelength characteristic of a corresponding output radiation beam. At least one of said one or more filter elements comprises at least two linear variable filters.

Подробнее
Номер записи: 93
22-09-2022 дата публикации

COLOR MEASUREMENT APPARATUS

Номер: US20220299366A1
Автор: ARUGA Sho, MASAKI Juro, MIYASAKA Haruki, SHIROTA Kenichi
Принадлежит:

A color measurement apparatus includes a substrate including an optical filter that processes light arriving from a measurement target, a reduction portion that reduces a quantity of light heading toward the optical filter from the measurement target, a frame that is a frame arranged to face the substrate and to which the substrate is fixed, and has a shape avoiding the optical filter and in which the reduction portion is positioned at a position facing the optical filter, and a positioning section that decides a relative position between the substrate and the frame in a direction intersecting with a center axis of the reduction portion. 1. A color measurement apparatus comprising:a substrate including an optical filter that processes light arriving from a measurement target;a reduction portion that reduces a quantity of light heading toward the optical filter from the measurement target;a frame that is a frame arranged to face the substrate and to which the substrate is fixed, and has a shape avoiding the optical filter and in which the reduction portion is positioned at a position facing the optical filter; anda positioning section that decides a relative position between the substrate and the frame in a direction intersecting with a center axis of the reduction portion.2. The color measurement apparatus according to claim 1 , whereina casing that forms an outer shell of the apparatus has a longitudinal direction and a short direction in a view from a direction of the center axis,the substrate has a shape extending in the longitudinal direction,the optical filter is arranged at a position shifted to one side from a center position of the substrate in the longitudinal direction in the substrate, andthe positioning section decides the relative position in at least one location on the one side from the center position in the longitudinal direction.3. The color measurement apparatus according to claim 1 , whereinthe positioning section is configured to include a ...

Подробнее
Номер записи: 94
08-06-2017 дата публикации

Optical spectrometer configuration including spatially variable filter (svf)

Номер: US20170160134A1
Автор: Matthew F. Ross, Randall S. Geels, Scott A. Chalmers
Принадлежит: Filmetrics Inc

A system comprising a light source configured to illuminate a sample under measurement. The system includes a detector configured to receive reflected light from the sample, and the detector generates a signal representing the reflected light. A spatially variable filter (SVF) is positioned in the optical path. The SVF is configured to have spectral properties that vary as a function of illuminated position on the SVF.

Подробнее
Номер записи: 95
14-05-2020 дата публикации

MODE MATCHING METHOD FOR ABSORPTION SPECTROSCOPY SYSTEMS

Номер: US20200149963A1
Автор: Bouzid Ahmed
Принадлежит:

Systems and methods for controlling optical feedback in an optical system having a radiation source optically coupled via mode matching optics with a resonant optical cavity. The cavity includes at least two cavity mirrors, one of which is a cavity coupling mirror, and has a plurality of optical resonance cavity modes, wherein the radiation source emits a beam of continuous wave radiation and is capable of being scanned whereby a mean optical frequency of the continuous wave radiation beam is adjustable over a range of frequencies, wherein the radiation source is responsive to optical feedback radiation emerging from the cavity, and wherein the mode matching optics couples the beam of continuous wave radiation to the cavity via the cavity coupling mirror. The radiation source and the mode matching optics are aligned so that a mode fill ratio is reduced relative to a maximum mode fill ratio, wherein for the maximum mode-fill ratio the laser beam is coupled with a fundamental cavity mode. 1. A method of controlling optical feedback in an optical system having a radiation source optically coupled via mode matching optics with a resonant optical cavity having at least two cavity mirrors , one of which is a cavity coupling mirror , the cavity having a plurality of optical resonance cavity modes , wherein the radiation source emits a beam of continuous wave radiation and is capable of being scanned whereby a mean optical frequency of the beam of continuous wave radiation is adjustable over a range of frequencies , wherein the radiation source is responsive to optical feedback radiation emerging from the cavity , and wherein the mode matching optics couples the beam of continuous wave radiation to the cavity via the cavity coupling mirror , the method comprisingaligning the radiation source and the mode matching optics so that a mode fill ratio is reduced relative to a maximum mode fill ratio, wherein for the maximum mode-fill ratio the beam of continuous wave radiation is ...

Подробнее
Номер записи: 96
14-05-2020 дата публикации

High Resolution Multiplexing System

Номер: US20200150036A1
Автор: Nell Peter Condie, Pacak John Stephen, Prystupa David Allan
Принадлежит:

A method is provided for measuring time varying particle fluxes with improved temporal resolution and signal to noise ratio. The particles can be photons, neutrons, electrons or electrically charged particles. The method includes a set of electronic and/or optical components and a set of algorithms that implement N-fold temporal multiplexing of the input flux. The system can be used to measure other types of flux by using a transducer to convert the flux into a compatible form. The system can include a transducer such as a scintillator that operates to convert particle flux incident into a photon flux proportional to the amplitude of particle flux. The invention can be used with multiplexing methods known to those skilled in the art, for example Hadamard and Fourier methods. 1. A method for measuring amplitude of an incident particle flux comprising the steps of:receiving the incident particle flux;collecting over N time intervals the incident particle flux in each of the time intervals;directing the particle flux into a conditioning device that outputs N conditioned particle fluxes, each with amplitude proportional to an input particle flux amplitude of the incident particle flux, along N different paths to a respective gating device on each of said N paths;each said gating device operating to direct particle flux along one of at least two different gated paths at each time interval according to a code sequence unique to each said gating device;directing the particle flux along each gated path to d integrating devices;each said d integrating devices operating to produce output particle flux proportional to the integrated particle flux over N time intervals;and analyzing said Nd output particle fluxes with a processing device to obtain information about the amplitude of the incident particle flux over N time intervals;wherein each unique code sequence is of length N and has at least two different elements specifying at least two different gated paths and d is ...

Подробнее
Номер записи: 97
24-06-2021 дата публикации

CAVITY BUILDUP DISPERSION SPECTROMETER AND PERFORMING CAVITY BUILDUP DISPERSION SPECTROSCOPY

Номер: US20210190589A1
Автор: Fleisher Adam Joseph, Gillis Keith Alan, Hodges Joseph Terence
Принадлежит:

A cavity buildup dispersion spectrometer includes a shutter that modulates coherent electromagnetic radiation at a shutter frequency; and produces modulated electromagnetic radiation; a frequency shifter that frequency shifts the modulated electromagnetic radiation to a shifter frequency and produces frequency shifted radiation; a resonator that produces cavity radiation from the frequency shifted radiation and the coherent electromagnetic radiation, receives an analyte; subjects the analyte to cavity radiation, and transmits the cavity radiation as transmitted electromagnetic radiation; and a receiver that: produces a detector signal from the transmitted electromagnetic radiation, such that the detector signal includes a beat frequency that corresponds to a change in a motion of resonator that includes a change in the distance between the mirrors or a change of refractive index of the analyte in the intracavity space. 1. A cavity buildup dispersion spectrometer comprising:a shutter that receives coherent electromagnetic radiation, modulates the coherent electromagnetic radiation at a shutter frequency; and produces modulated electromagnetic radiation from the coherent electromagnetic radiation;a frequency shifter in communication with the shutter and that receives the modulated electromagnetic radiation from the shutter, frequency shifts the modulated electromagnetic radiation by a shifter frequency; and produces frequency shifted radiation that is different from the modulated electromagnetic radiation by the shifter frequency; a plurality of mirrors separated by a distance;', 'an intracavity space interposed between the mirrors having the distance as a length; and', receives the frequency shifted radiation from the frequency shifter;', 'receives coherent electromagnetic radiation;', 'produces cavity radiation, in the intracavity space, from the frequency shifted radiation and the coherent electromagnetic radiation;', 'receives an analyte in the intracavity space ...

Подробнее
Номер записи: 98
22-09-2022 дата публикации

HYPERSPECTRAL SENSOR, HYPERSPECTRAL IMAGING SYSTEM INCLUDING THE SENSOR, AND HYPERSPECTRAL IMAGING METHOD USING THE SYSTEM

Номер: US20220303440A1
Автор: SONG JUNG-HO
Принадлежит: Electronics and Telecommunications Research Institute

Provided are a hyperspectral sensor including a window, a first focusing part provided on a rear surface of the window and including a plurality of lenses, a first image sensor provided on a rear surface of the first focusing part and having a front surface parallel to the rear surface of the window, a first mirror spaced apart from the first focusing part and the first image sensor and having a front surface inclined with respect to the rear surface of the window, a first optical element spaced apart from the first mirror, a second optical element spaced apart from the first optical element and having a periodic refractive index distribution therein, a second focusing part spaced apart from the second optical element and including a plurality of lenses, and a second image sensor provided on a rear surface of the second focusing part, a hyperspectral imaging system including the hyperspectral sensor, and a hyperspectral imaging method using the hyperspectral imaging system. 1. A hyperspectral sensor comprising:a window;a first focusing part provided on a rear surface of the window and including a plurality of lenses;a first image sensor provided on a rear surface of the first focusing part and having a front surface parallel to the rear surface of the window;a first mirror spaced apart from the first focusing part and the first image sensor and having a front surface inclined with respect to the rear surface of the window;a first optical element spaced apart from the first mirror;a second optical element spaced apart from the first optical element and having a periodic refractive index distribution therein;a second focusing part spaced apart from the second optical element and including a plurality of lenses; anda second image sensor provided on a rear surface of the second focusing part.2. The hyperspectral sensor of claim 1 , wherein the first optical element has a periodic refractive index distribution therein claim 1 ,wherein a thickness of the first optical ...

Подробнее
Номер записи: 99
14-06-2018 дата публикации

IMAGE CAPTURING UNIT, COLOR MEASURING DEVICE, IMAGE FORMING APPARATUS, COLOR MEASURING SYSTEM AND COLOR MEASUREMENT METHOD

Номер: US20180167534A1
Автор: Horikawa Daisaku, KOBAYASHI Masato, Okada Tatsuhiko, Sakurada Yuichi, SATOH Nobuyuki, SUZUKI Yasuyuki, Yokozawa Suguru, Yorimoto Mamoru
Принадлежит:

An image capturing unit includes a sensor unit that image-captures a predetermined area including a subject; and a reference chart unit that is arranged in the predetermined area and captured with the subject by the sensor unit. 1. (canceled)2. An image capturing device comprising:an image sensor configured to substantially simultaneously image-capture a subject and a reference chart, the image sensor having an image-capturing range including a subject image-capturing area in which the subject is captured and a reference chart capturing area in which the reference chart is captured; anda lens disposed in an optical path of the image sensor, whereinthe subject image-capturing area and the reference chart capturing area are adjacent to each other, andthe subject and the reference chart are at positions separated from each other.3. The image capturing device according to claim 2 , wherein the subject image-capturing area and the reference chart capturing area do not overlap each other.4. The image capturing device according to claim 2 , further comprising a processor configured to correct a captured image result of capturing the subject based on a captured image result of capturing the reference chart.5. The image capturing device according to claim 2 , wherein the subject and the reference chart are illuminated in substantially a same illumination condition.6. The image capturing device according to claim 2 , wherein the reference chart includes a plurality of chromatic patches.7. The image capturing unit according to claim 6 , wherein the plurality of chromatic patches are divided into blocks.8. The image capturing device according to claim 2 , further comprising a memory configured to store colors of the reference chart.9. The image capturing unit according to claim 4 , wherein the processor is configured to perform color measurement on the subject using the corrected captured image result.10. A color measurement method comprising:substantially simultaneously image- ...

Подробнее
Номер записи: 100