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公开(公告)号：US11802795B2
公开(公告)日：2023-10-31
申请号：US17600501
申请日：2020-04-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Mark A. Roehrig , Del R. Lawson , Tony J. Kaufman , James W. Howard , Kevin W. Gotrik , Claire R. Donoghue , Joshua M. Fishman , Jonah Shaver
CPC classification number: G01J3/2803 , G01J3/0229 , G01J3/12 , G02B5/12 , G01J2003/1213 , G01J2003/2806
Abstract: An optical system is disclosed and includes an optical sensor, a plurality of photosensitive pixels disposed on the optical sensor, a wavelength-selective optical filter in optical communication with the photosensitive pixels, the wavelength-selective optical filter being disposed remotely from the optical sensor, an area disposed in the wavelength-selective optical filter, the area having a transmission spectrum different from a transmission spectrum of a portion of the wavelength-selective optical filter not in the area and a reflector, the wavelength-selective optical filter and a measurement subject each being disposed between the reflector and the optical sensor along an optical path.
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公开(公告)号：US20230341266A1
公开(公告)日：2023-10-26
申请号：US18344303
申请日：2023-06-29
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Cheewei LEE , Chao PAN , Stevanus DARMAWAN , Shaowu WANG , Qian WANG , Huaqiang QIN
CPC classification number: G01J3/45 , G01J3/0229 , G02B27/1006
Abstract: A optical chip includes: an optical splitter, configured to receive a first electromagnetic wave signal, and divide the first electromagnetic wave signal into two electromagnetic wave signals for output; and a first interferometer and a second interferometer, where the optical splitter, the first interferometer, and the second interferometer are sequentially coupled, and the first interferometer and the second interferometer are configured to receive one of the two electromagnetic wave signals, so that the one electromagnetic wave signal is interfered twice, to output a plurality of second electromagnetic wave signals. The other one of the two electromagnetic wave signals is output as a third electromagnetic wave signal, and the second electromagnetic wave signal and the third electromagnetic wave signal may be used to obtain wavelength information of the first electromagnetic wave signal through optical-electrical conversion. A wavelength measurement system is further provided.
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公开(公告)号：US20230341264A1
公开(公告)日：2023-10-26
申请号：US18343015
申请日：2023-06-28
Applicant: VIAVI Solutions Inc.
Inventor： William D. HOUCK , Valton SMITH
CPC classification number: G01J3/28 , G01J3/0229
Abstract: An optical sensor device may comprise an optical sensor comprising a set of sensor elements; an optical filter comprising one or more channels, wherein each channel, of the one or more channels, is configured to pass light associated with particular wavelengths to a subset of sensor elements, of the set of sensor elements, of the optical sensor; a phase mask configured to distribute a plurality of light beams associated with a subject in an encoded pattern on an input surface of the optical filter; and one or more processors. The one or more processors may be configured to obtain, from the optical sensor, sensor data associated with the subject and determine, based on the sensor data, spectral information associated with the subject. The one or more processors may determine, based on the sensor data and information associated with the encoded pattern, spatial information associated with the subject.
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14.发明授权公开(公告)号：US11796827B1
公开(公告)日：2023-10-24
申请号：US16806903
申请日：2020-03-02
Applicant: Ball Aerospace & Technologies Corp.
Inventor： Ronald P. Earhart , Kevin L. Whiteaker
CPC classification number: G02B27/141 , G01J3/0229 , G01S7/4816 , G01B11/022 , G01C3/00 , G01C3/08 , G01S17/88 , G01S17/89
Abstract: A Lidar system is provided. The Lidar system includes a laser emitter transmitting a first signal of a first wavelength. The Lidar system includes a filter receiving the first signal. The Lidar system includes a first dichroic filter switch filtering the first signal received by the variable waveplate or other filter. The Lidar system includes a receiver sensor receiving the filtered first signal. The Lidar system includes the laser emitter transmitting a second signal of a second wavelength. The Lidar system includes the variable waveplate or other filter receiving the second signal. The Lidar system includes the first dichroic filter switch filtering the second signal. The Lidar system includes the receiver sensor receiving the filtered second signal. A processor determines a distance of a target based on the received filtered first and second signals.
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公开(公告)号：US11788967B2
公开(公告)日：2023-10-17
申请号：US16963679
申请日：2019-01-23
Applicant: DANMARKS TEKNISKE UNIVERSITET
Inventor： Oleksii Ilchenko , Tomas Rindzevicius , Anja Boisen , Roman Slipets
CPC classification number: G01N21/65 , G01J3/0229 , G01J3/0297 , G01J3/44 , G01N2201/0612 , G01N2201/0631 , G01N2201/0633 , G01N2201/0635
Abstract: An apparatus for carrying out Raman spectroscopy on a sample includes a light source for providing a beam of excitation radiation, and an optical system including a spectrograph. The spectrograph includes a grating that divides a beam of scattered light into a spectrum of spatially separated wavelength components and to direct a portion of the spectrum to a detector. The spectrograph includes: 1) a first lens system for focusing the portion of the spectrum onto the detector and 2) a second lens system-configured to provide a focal plane with focal point in the optical path for focusing the beam of excitation radiation and/or the beam of scattered radiation at the focal point. The apparatus including a reference sample arranged in the focal plane, in particular at the focal point, for obtaining a reference spectrum from the reference sample.
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Patent Agency Ranking
16.发明授权公开(公告)号：US11740129B2
公开(公告)日：2023-08-29
申请号：US17298615
申请日：2020-03-30
Applicant: SOUTH CHINA NORMAL UNIVERSITY
Inventor： Xiaoxu Lv , Chengxin Zhou , Liyun Zhong , Qinwen Ning , Shengde Liu
IPC: G01J3/45 , G02F1/13363 , G01J3/02 , G01J3/12
CPC classification number: G01J3/45 , G01J3/0224 , G01J3/0229 , G01J3/0237 , G01J3/12 , G02F1/133638 , G01J2003/1291
Abstract: A differential interference imaging system capable of rapidly changing shear direction and amount includes: a light source (101), a filter (102), a polarizer (103), a sample stage (104), an infinite imaging microobjective (105), a tube lens (106), a shear component, an analyzer (113), and an image sensor (114). 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 (105) and to implement imaging through the tube lens (106). 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 (103) to form a differential interference image in the image sensor (114). The system may be flexibly assembled, is simple in structure and easy to implement.
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公开(公告)号：US11686891B2
公开(公告)日：2023-06-27
申请号：US16462249
申请日：2016-12-01
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： John A. Wheatley , Gilles J. Benoit , Guanglei Du , Steven R. Anderson , Owen M. Anderson , David T. Yust , Rolf W. Biernath , Gary E. Gaides , Brian W. Lueck , Neeraj Sharma
CPC classification number: G02B5/22 , G01J3/0229 , A61B5/02427 , A61B5/681 , G02B2207/123
Abstract: A detector system is described that includes a detector that is sensitive to wavelengths in a detection wavelength range. The detector system further includes a light control film that is disposed on the detector and includes a plurality of alternating first and second regions. Each first region has a width W and a height H, where H/W≥1. Each first region has a substantially low transmission in a first portion of the detection wavelength range and a substantially high transmission in the remaining portion of the detection wavelength range. Each second region has a substantially high transmission in the detection wavelength range.
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公开(公告)号：US20190239752A1
公开(公告)日：2019-08-08
申请号：US16264732
申请日：2019-02-01
Applicant: The Procter & Gamble Company
Inventor： Lucian DUMITRESCU , Karen Kay KALLA , Dean Arthur ZIMMERMAN , Jaroslaw Pawel SACHA
CPC classification number: A61B5/0075 , A61B5/0064 , A61B5/441 , A61B5/7264 , A61B2562/0233 , A61B2576/02 , G01J3/0229 , G01J3/2823 , G01J2003/2826 , G06T7/0012 , G06T7/80 , G06T2207/10048 , G06T2207/10152 , G06T2207/30088 , G16H30/40
Abstract: A hyperspectral imaging system that includes an image capture device, an illumination component, a tunable filter, and an infrared cut-off filter. The hyperspectral system can capture a spectral image of a target object such as a clinical test subject across a spectral range of at least 450 nm to 700 nm at a spectral resolution of at least 50 nm. The infrared cut-off filter is positioned between the target object and the tunable filter to reduce leak-through and improve the performance of the hyperspectral imaging system.
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19.发明申请公开(公告)号：US20190234799A1
公开(公告)日：2019-08-01
申请号：US16311627
申请日：2017-06-26
Applicant: SICPA HOLDING SA
Inventor： Jean-Luc DORIER , Xavier-Cédric RAEMY , Todor DINOEV , Edmund HALASZ
CPC classification number: G01J3/2823 , G01J3/0229 , G01J3/0254 , G01J3/1838 , G07D7/1205 , G07D7/205
Abstract: An imaging system (200) for generating a measure of authenticity of an object (10) comprises a dispersive imaging arrangement (30) and an image sensor arrangement (60). They are positioned so that, when electromagnetic radiation (20) from the object (10) illuminates the dispersive imaging arrangement (30), the electromagnetic radiation is dispersed and imaged by the image sensor arrangement (60). The imaging system (200) is configured to then generate a measure of authenticity of the object (10) depending at least on a relation between the imaged dispersed electromagnetic radiation and reference spectral information. The invention also relates to imaging methods, computer programs, computer program products, and storage mediums.
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公开(公告)号：US20190086260A1
公开(公告)日：2019-03-21
申请号：US15992351
申请日：2018-05-30
Applicant: RAVR Incorporation Ltd.
Inventor： Evan Y. W. Zhang
CPC classification number: G01J3/0256 , G01J3/0208 , G01J3/0229 , G01J3/0248 , G01J3/0264 , G01J3/10 , G01J3/2803 , G01J3/44
Abstract: A double-channel miniaturized Raman spectrometer includes a sequentially-connected near-infrared laser diode or near-ultraviolet laser emitter, a collimated laser beam expander, a first beam splitter that retards laser light but penetrates laser light and Raman light, a cylindrical or spherical objective lens with or without zooming, a second beam splitter that retards laser light but penetrates Raman light, a relay optical system, a slit, two spectral lens, a plurality of line-array or matrix-array CCD or CMOS detectors, a GPS, and a data processing and wireless transceiver system. After the laser channel photographing a target and aligning an optical axis and a Raman channel to measure the sample, the data is wirelessly sent to a cell phone and a cloud computer for spectrum separation, peak search, spectral library establishment, material identification and the like in order to obtain a quick conclusion.
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