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公开(公告)号：US3711708A
公开(公告)日：1973-01-16
申请号：US3711708D
申请日：1971-02-25
Applicant: OPTICAL COATING LABORATORY INC
CPC classification number: G01J3/02 , G01J3/0202 , G01J3/0232 , G01J3/04 , G01J3/06 , G01J3/26 , G01J3/2889 , G01J3/42 , G01N30/74
Abstract: A rapid scan spectrum identifier fur use in identifying infrared spectrum of the output of a gas chromatograph to identify its absorption characteristics and includes an infrared source and beam splitter, a double beam chopper for alternately sending the infrared beam through a sample or reference gas cell mounted in a suitable furnace, the output of which is recombined and analyzed by a monochromator having a narrow output passband of energy detected by a rapid response detector, the output of which is processed by suitable electronic circuitry to provide a readout. The monochromator is of the scanning type in which a grating is synchronously scanned with a circular variable filter so that the first order output of the grating is selectively passed and higher orders rejected by the filter. The sample and reference gas cell furnace assembly utilizes specially constructed sample and reference gas cells symmetrically mounted in a furnace arrangement for maintaining input gas streams at equal temperatures within each cell and above the temperature of condensation of the sample under investigation. The beam chopper contains associated photoelectronics for physically determining the location of a chopping blade to thereby provide gating signals for indicating the presence at the detector of a sample, reference, or a background signals. These grating signals are used in sample and hold circuits to convert an essentially digitally sampled output into a relatively smooth continuous curve indicative of the absorption of the sample so that the readout represents the sample absorption characteristics corrected for reference for the carrier gas and background effects. The instrument is designed to operate with scan rates of approximately 6 and 30 seconds.
Abstract translation: 快速扫描光谱标识符用于识别气相色谱仪的输出的红外光谱以识别其吸收特性，并且包括红外源和分束器，用于交替地将红外光束通过样品或参考气体电池安装的双光束斩波器 在合适的炉中，其输出由具有由快速响应检测器检测到的能量的窄输出通带的单色仪重组和分析，其输出由合适的电子电路处理以提供读数。 单色仪是扫描型的，其中光栅与圆形可变滤波器同步扫描，使得光栅的一阶输出被选择性地通过，并且较高阶数被滤光器拒绝。
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公开(公告)号：US2858735A
公开(公告)日：1958-11-04
申请号：US42360654
申请日：1954-04-16
Applicant: BECKMAN INSTRUMENTS INC
Inventor： AHRENDT MERRILL E
IPC: G01J3/02
CPC classification number: G01J3/02 , G01J3/0213 , G01J3/0232
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公开(公告)号：US12085449B2
公开(公告)日：2024-09-10
申请号：US17524890
申请日：2021-11-12
Applicant: SEIKO EPSON CORPORATION
Inventor： Kenichi Furuya , Haruki Miyasaka , Hisayuki Akahane
CPC classification number: G01J3/51 , G01D5/14 , G01J3/0232 , G01J3/50
Abstract: 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.
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公开(公告)号：US12038329B2
公开(公告)日：2024-07-16
申请号：US17653383
申请日：2022-03-03
Applicant: SEIKO EPSON CORPORATION
Inventor： Toshio Miyake , Haruki Miyasaka , Kenichi Furuya , Hisayuki Akahane
CPC classification number: G01J3/51 , G01D5/14 , G01J3/0232 , G01J3/50
Abstract: 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.
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公开(公告)号：US20240210244A1
公开(公告)日：2024-06-27
申请号：US18520284
申请日：2023-11-27
Applicant: Rebellion Photonics, Inc.
Inventor： Robert Timothy Kester , Nathan Adrian Hagen
IPC: G01J3/02 , G01J3/28 , G01J3/36 , G01J5/00 , G01N21/3504
CPC classification number: G01J3/0232 , G01J3/0229 , G01J3/28 , G01J3/2823 , G01J3/36 , G01N21/3504 , G01J2005/0077
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US12007281B2
公开(公告)日：2024-06-11
申请号：US17653383
申请日：2022-03-03
Applicant: SEIKO EPSON CORPORATION
Inventor： Toshio Miyake , Haruki Miyasaka , Kenichi Furuya , Hisayuki Akahane
CPC classification number: G01J3/51 , G01D5/14 , G01J3/0232 , G01J3/50
Abstract: 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.
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公开(公告)号：US11892281B2
公开(公告)日：2024-02-06
申请号：US17655899
申请日：2022-03-22
Applicant: Otsuka Electronics Co., Ltd.
Inventor： Shiro Kawaguchi , Kazuya Nakajima , Hayato Takizawa , Goro Maeda
IPC: G01B11/06 , G01J3/02 , G01J3/10 , G01B5/00 , G01N21/27 , G01B9/02055 , G01J3/28 , G01N21/25 , G01B21/04
CPC classification number: G01B11/0625 , G01B5/0014 , G01B9/0207 , G01B11/06 , G01B11/0675 , G01B21/045 , G01J3/02 , G01J3/027 , G01J3/0232 , G01J3/0286 , G01J3/0291 , G01J3/0297 , G01J3/10 , G01J3/28 , G01N21/25 , G01N21/274 , G01N21/276 , G01J2003/2836
Abstract: An optical measurement system includes a light source, a spectroscopic detector, a reference sample, a switching mechanism that switches between a first optical path through which a sample to be measured is irradiated with light from the light source and light produced at the sample is guided to the spectroscopic detector and a second optical path through which the reference sample is irradiated with light from the light source and light produced at the reference sample is guided to the spectroscopic detector, and a processing unit that calculates, by performing correction processing based on change between a first detection result at first time and a second detection result at second time, a measurement value of the sample from a third detection result provided from the spectroscopic detector as a result of irradiation of the sample with light from the light source at third time temporally proximate to the second time.
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公开(公告)号：US11879775B2
公开(公告)日：2024-01-23
申请号：US17247809
申请日：2020-12-23
Applicant: Rebellion Photonics, Inc.
Inventor： Robert Timothy Kester , Nathan Adrian Hagen
IPC: G01J3/02 , G01J3/28 , G01N21/3504 , G01J3/36 , G01J5/00
CPC classification number: G01J3/0232 , G01J3/0229 , G01J3/28 , G01J3/2823 , G01J3/36 , G01N21/3504 , G01J2005/0077
Abstract: 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.
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公开(公告)号：US20240003807A1
公开(公告)日：2024-01-04
申请号：US18347822
申请日：2023-07-06
Applicant: REBELLION PHOTONICS, INC.
Inventor： Robert Timothy KESTER , Ohad Israel BALILA
CPC classification number: G01N21/3504 , G01J3/36 , G01J3/0232 , G01N33/0047 , G01M3/38 , G01J3/28 , G01N2021/1795
Abstract: 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.
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公开(公告)号：US11860093B2
公开(公告)日：2024-01-02
申请号：US17681650
申请日：2022-02-25
Applicant: The Boeing Company
Inventor： Keith D. Humfeld , Morteza Safai
CPC classification number: G01N21/6402 , G01J3/0232 , G01J3/4406 , G01J3/2889 , G01J2003/064 , G01N2021/6419 , G01N2021/6421 , H01S5/1092
Abstract: 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.
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