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公开(公告)号：US3960452A
公开(公告)日：1976-06-01
申请号：US555357
申请日：1975-03-05
Applicant: Victor R. Huebner
Inventor： Victor R. Huebner
Abstract: A color analyzer simultaneously responsive to light intensity at multiple wavelength regions emitted by or reflected from a specimen illuminated by existing ambient light for instantaneously determining relative ratios of the wavelength regions comprising a plurality of interchangeable photodetectors having different spectral response characteristics; a separate optical probe for each photodetector for imaging the light emitted by or reflected from the specimen onto its associated photodetector, the optical probes having identical dimensions and imaging characteristics and being arranged in side-by-side, parallel relationship in order to permit each optical probe to be affected equally by ambient light changes; and means responsive to the outputs of the photodetectors for rationing such outputs and providing the resultant ratio signals for utilization. Also disclosed is a closed loop feedback system to permit the individual ratios of any or all of the photodetectors to be monitored simultaneously.
Abstract translation: 同时响应于由现有环境光照射的样本发射或反射的多个波长区域处的光强度的颜色分析仪，用于瞬时确定包括具有不同光谱响应特性的多个可互换光电探测器的波长区域的相对比率; 用于每个光电检测器的单独的光学探针，用于将从样品发射或从其上反射的光成像到其相关联的光电检测器上，光学探针具有相同的尺寸和成像特性并且并排布置成平行关系，以允许每个光学 探测器受到环境光的变化的等效影响; 以及响应于光电检测器的输出以对这些输出进行配给并提供所得到的比率信号以供利用的装置。 还公开了一种闭环反馈系统，以允许同时监测任何或全部光电检测器的各个比率。
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公开(公告)号：US3010358A
公开(公告)日：1961-11-28
申请号：US79438159
申请日：1959-02-19
Applicant: PERKIN ELMER CORP
Inventor： SIEGLER JR EDOUARD H
CPC classification number: G01N21/255 , G01J3/02 , G01J3/0208 , G01J3/0216 , G02B19/0023 , G02B19/0033 , G02B19/009
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243.发明公开公开(公告)号：US20240159588A1
公开(公告)日：2024-05-16
申请号：US18410593
申请日：2024-01-11
Applicant: Pendar Technologies, LLC
Inventor： Daryoosh VAKHSHOORI , Romain BLANCHARD , Peili CHEN , Masud AZIMI , Tobias MANSURIPUR , Kalyani KRISHNAMURTHY , Arran M. BIBBY , Fred R. HUETTIG, III , Gokhan ULU , Greg Vander Rhodes
IPC: G01J3/02 , G01J3/06 , G01J3/28 , G01J3/44 , G01K11/3213 , H01S3/00 , H01S3/094 , H01S3/108 , H01S3/30
CPC classification number: G01J3/0275 , G01J3/0202 , G01J3/0208 , G01J3/0216 , G01J3/0224 , G01J3/0237 , G01J3/0248 , G01J3/0256 , G01J3/0264 , G01J3/0272 , G01J3/0286 , G01J3/06 , G01J3/2823 , G01J3/44 , G01J3/4406 , G01J3/4412 , G01K11/3213 , H01S3/0014 , H01S3/094046 , H01S3/1086 , H01S3/302 , G01J2003/4424 , G01K11/324 , H01S3/0071
Abstract: A compact, portable Raman spectrometer makes fast, sensitive standoff measurements at little to no risk of eye injury or igniting the materials being probed. This spectrometer uses differential Raman spectroscopy and ambient light measurements to measure point-and-shoot Raman signatures of dark or highly fluorescent materials at distances of 1 cm to 10 m or more. It scans the Raman pump beam(s) across the sample to reduce the risk of unduly heating or igniting the sample. Beam scanning also transforms the spectrometer into an instrument with a lower effective safety classification, reducing the risk of eye injury. The spectrometer's long standoff range automatic focusing make it easier to identify chemicals through clear and translucent obstacles, such as flow tubes, windows, and containers. And the spectrometer's components are light and small enough to be packaged in a handheld housing or housing suitable for a small robot to carry.
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公开(公告)号：US11885681B2
公开(公告)日：2024-01-30
申请号：US17705846
申请日：2022-03-28
Applicant: Pendar Technologies, LLC
Inventor： Daryoosh Vakhshoori , Romain Blanchard , Peili Chen , Masud Azimi , Tobias Mansuripur , Kalyani Krishnamurthy , Arran M. Bibby , Fred R. Huettig, III , Gokhan Ulu , Greg Vander Rhodes
IPC: G01J3/02 , G01J3/44 , G01J3/28 , G01J3/06 , H01S3/00 , G01K11/3213 , H01S3/094 , H01S3/108 , H01S3/30 , G01K11/324
CPC classification number: G01J3/0275 , G01J3/0202 , G01J3/0208 , G01J3/0216 , G01J3/0224 , G01J3/0237 , G01J3/0248 , G01J3/0256 , G01J3/0264 , G01J3/0272 , G01J3/0286 , G01J3/06 , G01J3/2823 , G01J3/44 , G01J3/4406 , G01J3/4412 , G01K11/3213 , H01S3/0014 , H01S3/094046 , H01S3/1086 , H01S3/302 , G01J2003/4424 , G01K11/324 , H01S3/0071
Abstract: A compact, portable Raman spectrometer makes fast, sensitive standoff measurements at little to no risk of eye injury or igniting the materials being probed. This spectrometer uses differential Raman spectroscopy and ambient light measurements to measure point-and-shoot Raman signatures of dark or highly fluorescent materials at distances of 1 cm to 10 m or more. It scans the Raman pump beam(s) across the sample to reduce the risk of unduly heating or igniting the sample. Beam scanning also transforms the spectrometer into an instrument with a lower effective safety classification, reducing the risk of eye injury. The spectrometer's long standoff range automatic focusing make it easier to identify chemicals through clear and translucent obstacles, such as flow tubes, windows, and containers. And the spectrometer's components are light and small enough to be packaged in a handheld housing or housing suitable for a small robot to carry.
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公开(公告)号：US20190078937A1
公开(公告)日：2019-03-14
申请号：US15703947
申请日：2017-09-13
Applicant: QUALCOMM Incorporated
Inventor： Hasib Siddiqui , Magdi Mohamed , James Nash , Kalin Atanassov
CPC classification number: G01J3/51 , G01J3/0208 , G01J3/0216 , G01J3/28 , G01J3/2823 , G01J3/524 , G01J2003/2806 , G01J2003/2826 , G06T3/4015 , H04N9/04515 , H04N9/04553 , H04N9/73
Abstract: Systems and methods are disclosed for processing spectral imaging (SI) data. A training operation estimates reconstruction matrices based on a spectral mosaic of an SI sensor, generates directionally interpolated maximum a-priori (MAP) estimations of image data based on the estimated reconstruction matrices. The training operation may determine filter coefficients for each of a number of cross-band interpolation filters based at least in part on the MAP estimations, and may determine edge classification factors based at least in part on the determined filter coefficients. The training operation may configure a cross-band interpolation circuit based at least in part on the determined filter coefficients and the determined edge classification factors. The configured cross-band interpolation circuit captures mosaic data using the SI sensor, and recovers full-resolution spectral data from the captured mosaic data.
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Patent Agency Ranking
公开(公告)号：US20180284273A1
公开(公告)日：2018-10-04
申请号：US15764358
申请日：2016-09-26
Applicant: Heptagon Micro Optics Pte. Ltd.
Inventor： Bernhard Buettgen , Gözen Köklü , Daniel Furrer , Stephan Beer , Miguel Bruno Vaello Paños
CPC classification number: G01S17/08 , G01B11/00 , G01C3/08 , G01J3/0208 , G01J3/0213 , G01J3/0216 , G01J3/0229 , G01J3/2803 , G01J3/2823 , G01J3/36 , G01J2003/2806 , G01S17/89 , G06T7/514 , G06T2207/10024 , H01L27/14621 , H01L27/14627 , H01L27/14825 , H04N5/332
Abstract: An optoelectronic module operable to acquire distance data and spectral data includes an array of demodulation pixels and an array of spectral filters. The demodulation pixels can possess an intrinsic wavelength-dependent sensitivity, wherein the intrinsic wavelength-dependent sensitivity can be offset by an intensity balancing micro-lens array in some cases. In some cases, the intrinsic wavelength-dependent sensitivity can be offset by a combined filter array, while in other cases the intrinsic wavelength-dependent sensitivity can be offset by an intensity balancing filter array. Still in other cases, the demodulation pixels can be operable in such as to offset the intrinsic wavelength-dependent sensitivity.
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公开(公告)号：US20180136132A1
公开(公告)日：2018-05-17
申请号：US15378156
申请日：2016-12-14
Applicant: BWT PROPERTY, INC.
Inventor： Jun Zhao , Xin Jack Zhou , Sean Xiaolu Wang
CPC classification number: G01N21/65 , G01J3/0216 , G01J3/44 , G01N2021/651 , G01N2201/0636 , G01N2201/068 , G01N2201/08
Abstract: This invention relates to a light delivery and collection device for measuring Raman scattering from a large area of a sample. The light delivery and collection device comprises a reflective cavity made of a material or having a surface coating with high reflectivity to the excitation light and the Raman scattered light. The reflective cavity has two apertures. The first aperture is configured to receive the excitation light which then projects onto the second aperture. The second aperture is configured to be applied close to the sample such that the reflective cavity substantially forms an enclosure covering a large area of the sample. The excitation light produces Raman scattered light from the covered area of the sample. The reflective cavity reflects any excitation light and Raman light scattered from the sample unless the excitation light and the Raman scattered light either emit from the first aperture to be measured with a spectrometer device, or are re-scattered by the sample at the second aperture. The multi-reflection of the reflective cavity greatly improves the excitation efficiency of Raman scattering from the sample and in the meantime enhances its collection efficiency. In addition, it also causes more excitation light to penetrate into a diffusely scattering sample and allows efficient collection of the Raman scattered light generated thereof, hence enabling sub-surface Raman scattering measurement.
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公开(公告)号：US20180100767A1
公开(公告)日：2018-04-12
申请号：US15805278
申请日：2017-11-07
Applicant: Brandt Christopher Pein , Harold Young Hwang , Wendi Chang , Keith Adam Nelson , Vladimir Bulovic , Nathaniel C. Brandt
Inventor： Brandt Christopher Pein , Harold Young Hwang , Wendi Chang , Keith Adam Nelson , Vladimir Bulovic , Nathaniel C. Brandt
CPC classification number: G01J5/046 , G01J1/58 , G01J3/0216 , G01J3/0245 , G01J3/04 , G01J3/42 , G01J5/0815 , G01J5/0837
Abstract: A radiation detection technique employs field enhancing structures and electroluminescent materials to converts incident Terahertz (THz) radiation into visible light and/or infrared light. In this technique, the field-enhancing structures, such as split ring resonators or micro-slits, enhances the electric field of incoming THz light within a local area, where the electroluminescent material is applied. The enhanced electric field then induces the electroluminescent material to emit visible and/or infrared light via electroluminescent process. A detector such as avalanche photodiode can detect and measure the emitted light. This technique allows cost-effective detection of THz radiation at room temperatures.
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公开(公告)号：US09939318B2
公开(公告)日：2018-04-10
申请号：US15493006
申请日：2017-04-20
Applicant: Verifood, Ltd.
Inventor： Damian Goldring , Dror Sharon , Guy Brodetzki , Sagee Rosen , Omer Keilaf , Uri Kinrot , Ittai Nir , Nitzan Waisberg , Ofer Rachman , Assaf Carmi
CPC classification number: G01J3/0291 , G01J3/0205 , G01J3/0208 , G01J3/0216 , G01J3/0256 , G01J3/0262 , G01J3/0264 , G01J3/027 , G01J3/0272 , G01J3/0283 , G01J3/0286 , G01J3/0297 , G01J3/06 , G01J3/10 , G01J3/26 , G01J3/2823 , G01J3/32 , G01J3/36 , G01J2003/2826
Abstract: A protective sheath having a closed end and an open end is sized to receive a hand held spectrometer. The spectrometer can be placed in the sheath to calibrate the spectrometer and to measure samples. In a calibration orientation, an optical head of the spectrometer can be oriented toward the closed end of the sheath where a calibration material is located. In a measurement orientation, the optical head of the spectrometer can be oriented toward the open end of the sheath in order to measure a sample. To change the orientation, the spectrometer can be removed from the sheath container and placed in the sheath container with the calibration orientation or the measurement orientation. Accessory container covers can be provided and placed on the open end of the sheath with samples placed therein in order to provide improved measurements.
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公开(公告)号：US20170307791A1
公开(公告)日：2017-10-26
申请号：US15592201
申请日：2017-05-11
Applicant: OTO PHOTONICS INC.
Inventor： Chien-Hsiang Hung
CPC classification number: G02B5/0273 , G01J1/0295 , G01J1/0414 , G01J1/0422 , G01J1/0425 , G01J1/044 , G01J1/0474 , G01J1/42 , G01J3/0205 , G01J3/021 , G01J3/0216 , G01J3/0218 , G01J3/0232 , G01J3/0297 , G01J3/18 , G02B19/0076
Abstract: An optical head for receiving an incident light is provided. The optical head comprises a reflective diffuser and a reflector disposed to face the reflective diffuser. The reflective diffuser is disposed in an optical path of the incident light and shields the reflector from the incident light. The reflective diffuser converts the incident light to scattered light having a Lambertian pattern. The reflector has an optical output section that transmits the scattered light and a reflective section that reflects the scattered light to the reflective diffuser and/or the other portions of the reflective sections. An optical system using the optical head is also provided.
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