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公开(公告)号：US12111210B2
公开(公告)日：2024-10-08
申请号：US17859912
申请日：2022-07-07
Applicant: Apple Inc.
Inventor： Mark Alan Arbore , Thomas C. Greening , Yongming Tu
IPC: G01J3/02 , G01J3/10 , G01J3/18 , G01J3/32 , G01J3/45 , G02B6/293 , G02B6/42 , G02B27/10 , G02F1/21
CPC classification number: G01J3/0297 , G01J3/10 , G01J3/108 , G01J3/1809 , G01J3/32 , G01J3/45 , G02B6/2938 , G02B6/4215 , G02B27/10 , G01J2003/102 , G02F1/212
Abstract: Configurations for light source modules and methods for mitigating coherent noise are disclosed. The light source modules may include multiple light source sets, each of which may include multiple light sources. The light emitted by the light sources may be different wavelengths or the same wavelength depending on whether the light source module is providing redundancy of light sources, increased power, coherent noise mitigation, and/or detector mitigation. In some examples, the light source may emit light to a coupler or a multiplexer, which may then be transmitted to one or more multiplexers. In some examples, the light source modules provide one light output and in other examples, the light source modules provide two light outputs. The light source modules may provide light with approximately zero loss and the wavelengths of light may be close enough to spectroscopically equivalent respect to a sample and far enough apart to provide coherent noise mitigation.
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公开(公告)号：US11965777B2
公开(公告)日：2024-04-23
申请号：US17276265
申请日：2019-07-04
Applicant: ADOM, ADVANCED OPTICAL TECHNOLOGIES LTD.
Inventor： Yoel Cohen , Ra'anan Gefen , Shlomi Epstein , Yoel Arieli
CPC classification number: G01J3/0297 , A61B3/0008 , A61B3/107 , G01J3/45
Abstract: Apparatus and methods are described for calibrating an optical system that is used for measuring optical properties of a portion of a subjects body. During a calibration stage, a front surface of a calibration object (300) is illuminated, light reflected from a plurality of points on the calibration object (300) is detected, and intensities of the light reflected from the plurality of points on the calibration object (300) are measured. During a measurement stage, the portion of the subjects body is illuminated, and light reflected from the portion of the subjects body is detected. Measurements performed upon the light that was reflected from the portion of the subjects body are calibrated, using the measured intensities of the light reflected from the plurality of points on the calibration object (300). Other applications are also described.
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公开(公告)号：US11953427B2
公开(公告)日：2024-04-09
申请号：US15227876
申请日：2016-08-03
Applicant: SpectraSensors, Inc.
Inventor： Alfred Feitisch , Xiang Liu , Kevin Ludlum , Mathias Schrempel
IPC: G01N21/27 , G01J3/02 , G01J3/28 , G01J3/42 , G01J3/457 , G01N21/39 , G01N21/21 , G01N21/35 , G01N21/3504 , G01N21/359
CPC classification number: G01N21/274 , G01J3/0297 , G01J3/28 , G01J3/42 , G01J3/457 , G01N21/39 , G01J2003/423 , G01N21/211 , G01N21/35 , G01N21/3504 , G01N21/359 , G01N2021/3595 , G01N2021/399
Abstract: Frequency registration deviations occurring during a scan of a frequency or wavelength range by a spectroscopic analysis system can be corrected using passive and/or active approaches. A passive approach can include determining and applying mathematical conversions to a recorded field spectrum. An active approach can include modifying one or more operating parameters of the spectroscopic analysis system to reduce frequency registration deviation.
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公开(公告)号：US11892351B2
公开(公告)日：2024-02-06
申请号：US17855133
申请日：2022-06-30
Applicant: DATACOLOR INC.
Inventor： Zhiling Xu , William Bishop
CPC classification number: G01J3/28 , G01J3/0297
Abstract: In the disclosure provided herein, the described apparatus, systems and methods are directed to compensation of errors caused by the difference between the specular port and the sphere in a sphere-based color-measurement instrument, and improvement of the performance of the instrument. In one or more implementations, described approaches eliminate the need for hardware replacement, and therefore reduce costs associated with the operation of color measurement instruments.
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公开(公告)号：US20240003742A1
公开(公告)日：2024-01-04
申请号：US17855133
申请日：2022-06-30
Applicant: DATACOLOR INC.
Inventor： Zhiling Xu , William Bishop
CPC classification number: G01J3/28 , G01J3/0297
Abstract: In the disclosure provided herein, the described apparatus, systems and methods are directed to compensation of errors caused by the difference between the specular port and the sphere in a sphere-based color-measurement instrument, and improvement of the performance of the instrument. In one or more implementations, described approaches eliminate the need for hardware replacement, and therefore reduce costs associated with the operation of color measurement instruments.
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Patent Agency Ranking
公开(公告)号：US20240003740A1
公开(公告)日：2024-01-04
申请号：US18036458
申请日：2021-11-18
Applicant: SIGNIFY HOLDING B.V.
Inventor： PABLO MORTARI SCHIAVINI
CPC classification number: G01J3/0297 , G01J3/0294 , H05B45/22 , A01G7/045 , A01K29/005 , G01J3/10 , G01J2003/104
Abstract: A method is provided of calibrating a lighting system to enable conversion between i) light output settings for a plurality of lighting channels of the lighting system, each channel having a respective color spectrum from a first set of color spectra, and ii) a light intensity at an area of interest for each of a second set of color spectra. The method derives a calibration matrix, based on a set default light outputs from the lighting channels, a mapping to light spectra to be measured, and light intensities measured at those light spectra. This calibration procedure takes advantage of the fact that using the same measurement device conventionally used for a simple calibration, it is possible to retrieve not only the total measured PPFD, but also partial PPFD values per spectral range.
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公开(公告)号：US20230358610A1
公开(公告)日：2023-11-09
申请号：US18223209
申请日：2023-07-18
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takashi KASAHARA , Katsumi SHIBAYAMA , Kei TABATA , Masaki HIROSE , Hiroki OYAMA , Yumi KURAMOTO
CPC classification number: G01J3/26 , G01J3/0297 , G01J3/45 , G02B5/281 , G02B26/001
Abstract: A light detection device of the present invention includes: a wiring board; a first support part disposed on a mounting surface of the wiring board; a Fabry-Perot interference filter having a first mirror part and a second mirror part between which a distance is variable and having an outer edge portion disposed in a first support region of the first support part; a light detector disposed on the mounting surface to face the first mirror part and the second mirror part on one side of the first support part; and a temperature detector disposed on the mounting surface, wherein the temperature detector is disposed on the mounting surface such that at least a part of the temperature detector overlaps a part of the Fabry-Perot interference filter when seen in a first direction perpendicular to the mounting surface and such that at least a part of the temperature detector overlaps a part of the first support part when seen in a second direction in which the first support part and the light detector are aligned with each other, and wherein a first distance between the temperature detector and the first support part in the second direction is smaller than a first width of the first support region in the second direction.
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公开(公告)号：US20230288258A1
公开(公告)日：2023-09-14
申请号：US18121446
申请日：2023-03-14
Applicant: Obsidian Sensors, Inc.
Inventor： John HONG , Bing WEN , Sean ANDREWS , Heesun SHIN , Edward CHAN , Tallis CHANG , Ming YING
CPC classification number: G01J3/45 , G01J3/0297 , G02B6/2935
Abstract: Systems and methods for spectrometry are disclosed. In some embodiments, the system comprises a Fourier Transform Spectrometer (FTS) comprising a waveguide and a delay element. In some embodiments, the method comprises determining a power spectral density of an input optical signal via the FTS.
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公开(公告)号：US20230251132A1
公开(公告)日：2023-08-10
申请号：US17943056
申请日：2022-09-12
Inventor： Quaid Vohra , Celestin Zemtsop , Mark Watson
CPC classification number: G01J3/44 , G01J3/0208 , G01J3/0297 , G01J3/10 , G01J3/18 , G01J3/2803
Abstract: A multi-dispersive spectrometer is provided in which the spectrometer comprises an optical system configured to direct an excitation signal from an excitation light source toward a sample, receive a spectroscopy signal from the sample, and direct the spectroscopy signal toward the detector. The optical system comprises a movable optical component adapted to move the spectroscopy signal relative to at least one sensor of the detector and the detector is adapted to detect a plurality of discrete shifted spectroscopy signals. A method of obtaining a Raman spectrum from a sample is also provided. The method comprises directing an excitation signal from an excitation light source toward a sample; receiving a spectroscopy signal from the sample; and directing the spectroscopy signal toward a detector, wherein the spectroscopy signal is moved relative to at least one sensor of the detector to provide a plurality of discrete shifted spectroscopy signals.
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公开(公告)号：US20230175890A1
公开(公告)日：2023-06-08
申请号：US17923088
申请日：2021-05-04
Applicant: AMS-Osram AG
Inventor： Deborah MORECROFT , Fernando Jesus CASTANO SANCHEZ , Richard HOPPER , Sophie BOUAL , Gerhard EILMSTEINER , Rafael SERRANO GOTARREDONA , Jozef PULKO , Gerald MEINHARDT
CPC classification number: G01J3/0297 , G01J3/108 , G01J3/0272 , G01J3/0259
Abstract: A spectrometer includes an emitter that is configured to emit electromagnetic radiation, a sample area that is arranged at an outer face of the spectrometer, a modulation unit including an electrochromic material, an optical filter, an optical detector, an integrated circuit that has a main plane of extension, and an optical path for electromagnetic radiation emitted by the emitter towards the optical detector via the sample area, the modulation unit and the optical filter, wherein the electrochromic material is electrically connected with the integrated circuit, and the modulation unit is configured to modulate electromagnetic radiation temporally. Furthermore, a method for detecting electromagnetic radiation is provided.
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