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公开(公告)号：US20230358612A1
公开(公告)日：2023-11-09
申请号：US18105575
申请日：2023-02-03
Applicant: Samsung Display Co., Ltd.
Inventor： JOOYOUNG YOON , YUNSEOK HAN , DOWON YI , JOO-YOUNG LEE , HYUN-KOO LEE
Abstract: An apparatus for inspecting a display panel includes a light source, a half mirror reflecting a first beam which is a portion of a source beam irradiated from the light source and transmitting a second beam which is another portion of the source beam toward a display panel, a reflective mirror reflecting the second beam transmitting the half mirror and the display panel to return to the half mirror, a panel supporter supporting the display panel between the half mirror and the reflective mirror, a wave plate disposed between the half mirror and the reflective mirror and transmitting the second beam, a rotator rotating the wave plate at a predetermined angle and an imaging detector photographing an interference fringe by the first beam and the second beam.
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122.发明授权公开(公告)号：US11802796B2
公开(公告)日：2023-10-31
申请号：US17643157
申请日：2021-12-07
Applicant: California Institute of Technology
Inventor： Seyedeh Sona Hosseini
CPC classification number: G01J3/45 , G01J3/021 , G01J3/0202 , G01J3/18 , G01J3/4531
Abstract: Novel monolithic reflective spatial heterodyne spectrometers (SHS) interferometer systems are presented. Monolithic systems in accordance with the invention have a single supporting structure wherein input optics, output optics, a flat mirror, a roof mirror, and a symmetric grating are affixed. Embodiments of the invention contain only fixed parts, and the optics do not move in relation to the supporting structure. Embodiments of the present invention enables smaller, lighter, and more robust reflective SHS systems as compared to conventional interferometry. Additionally, embodiments of the present invention require less time and skill for construction and maintenance, and is a better economic option. Additional embodiments can include multiple interferometer systems in a single supporting structure.
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公开(公告)号：US20230324225A1
公开(公告)日：2023-10-12
申请号：US18022276
申请日：2022-07-04
Inventor： Haiyan LUO , Wei XIONG , Zhiwei LI , Wei JIN , Dekang WANG , Qiansheng WANG
CPC classification number: G01J3/12 , G01J3/45 , G01J3/2823
Abstract: A wide-field imaging and hyperspectral collaborative early warning system and method are provided. The system includes: a primary imaging system, a digital micromirror array, a first collimation system, a second collimation system, a first reflector, a second reflector, a wide-field imaging optical filter, a narrow-band optical filter, a wide-field imager and a hyperspectral interferometer. The system and method have the advantages that the wide-field imaging general survey and fine spectrum detection can be realized synchronously, the functions are multiple, and the false alarm rate is low; the target spatial resolution of the fine spectrum identification is adjustable, the micro-control unit flipping solution is simple to operate, and quick adjustment is realized; the adaptability is strong, the flipping time of the corresponding micro-control unit is adaptively adjusted for the measured target with too low or too strong radiation intensity, and the dynamic range of the system is effectively improved.
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公开(公告)号：US11774288B2
公开(公告)日：2023-10-03
申请号：US17760983
申请日：2020-09-30
Inventor： Tatsuki Tahara
Abstract: An interference imaging device includes a light interference generator that includes: a light wave splitter configured to reflect a part of incident light and to allow a remaining part of the incident light to pass through; a phase modulator configured to modulate a phase of incident light that has passed through the light wave splitter; and a reflector configured to reflect the phase-modulated incident light from the phase modulator so that the reflected, phase-modulated incident light overlaps with incident light that has been reflected by the light wave splitter.
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公开(公告)号：US11774285B2
公开(公告)日：2023-10-03
申请号：US17423785
申请日：2020-01-21
Applicant: Yokogawa Electric Corporation
Inventor： Yasuyuki Suzuki , Masashi Nishi , Yukihiro Nakamura , Tetsushi Namatame
CPC classification number: G01J3/021 , G01B9/02 , G01J3/45 , G01J2003/102 , G01J2003/4538
Abstract: A Fourier spectroscopic analyzer includes: a first light source that emits light including a wavelength component in a first wavelength band which is a wavelength band in which a spectrum of light passing through a sample is acquired and a wavelength component in a second wavelength band different from the first wavelength band; a second light source that emits light including the wavelength component in the second wavelength band; an interferometer that acquires an interferogram which is coherent light from the light emitted from the first light source; a first light coupling optical system that couples light emitted from the second light source to at least one of light emitted from the first light source and the interferogram acquired by the interferometer; a light receiver that outputs a first light-reception signal acquired by receiving light including the wavelength component in the first wavelength band out of the wavelength components included in the light passing through the sample and a second light-reception signal acquired by receiving light including the wavelength component in the second wavelength band; and a signal processor that performs a Fourier transform process on the first light-reception signal and the second light-reception signal to acquire a spectrum of the wavelength component in the first wavelength band with noise removed therefrom.
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Patent Agency Ranking
126.发明公开公开(公告)号：US20230304860A1
公开(公告)日：2023-09-28
申请号：US18124912
申请日：2023-03-22
Applicant: Si-Ware Systems
Inventor： Yasser M. Sabry , Bassem Mortada , Samir Abozyd , Mostafa Medhat , Mai Said , Bassam Saadany , Youssri Helmy , Ahmed Badr , Marcal Plans Pujolras
CPC classification number: G01J3/0297 , G06N20/00 , G01J3/45 , G01J2003/2879
Abstract: Aspects relate to a spectral modeling system for building chemometrics (calibration) models for spectral devices targeting ultra-wide-scale deployment. The spectral modeling system includes a spectral converter for generating a plurality of artificial spectra using spectral data of a plurality of samples measured by a subset of a plurality of spectral devices and spectral device characteristics representing spectral variations in the plurality of spectral devices. The spectral modeling system further includes a chemometrics engine for generating a chemometrics model for one or more parameters associated with the plurality of samples based on the spectral data and the plurality of artificial spectra.
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公开(公告)号：US11733098B2
公开(公告)日：2023-08-22
申请号：US17561679
申请日：2021-12-23
Applicant: Shanghai Jiao Tong University
Inventor： Liangjun Lu , Junjie Du , Linjie Zhou , Jianping Chen , Jiao Liu
CPC classification number: G01J3/45 , G01J3/1895
Abstract: A silicon Fourier transform spectrometer and an optical spectrum reconstruction method are disclosed. The spectrometer includes a waveguide input coupler, cascaded optical switches, unbalanced subwavelength grating (SWG) waveguide pairs, and a germanium silicon detector, where the cascaded optical switches are connected through unbalanced SWG waveguide pairs. The state of the optical switches are adjusted to digitally configure the optical path, so as to constitute a series of unbalanced Mach-Zehnder interferometer (MZI) arrays with different optical path differences, to realize a Fourier transform spectrometer based on spatial heterodyne. The optical spectrum is reconstructed by using a compressed sensing algorithm.
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128.发明授权公开(公告)号：US11692875B2
公开(公告)日：2023-07-04
申请号：US17824569
申请日：2022-05-25
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Chanwook Baik
Abstract: An optical filter, a spectrometer including the optical filter, and an electronic apparatus including the optical filter are disclosed. The optical filter includes a first reflector including a plurality of first structures that are periodically two-dimensionally arranged, each of the first structures having a ring shape, and a second reflector spaced apart from the first reflector and including a plurality of second structures that are periodically two-dimensionally arranged.
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公开(公告)号：US20230194425A1
公开(公告)日：2023-06-22
申请号：US18173056
申请日：2023-02-22
Applicant: ACCESS MEDICAL SYSTEMS, LTD.
Inventor： Hong Tan
CPC classification number: G01N21/45 , G01J3/0208 , G01J3/0218 , G01J3/0224 , G01J3/024 , G01J3/45 , G01N21/7703 , G01N21/8507 , G01N2021/458 , G01N2201/0826 , G01N2201/0833 , G01N2021/772 , G01N21/55
Abstract: The present invention is directed to an assembly for use in detecting an analyte in a sample based on thin-film spectral interference. The assembly includes a light source to emit light signals; a light detector to detect light signals; a coupler to optically couple the light source and the light detector to a waveguide tip; a monolithic substrate having a coupling side and a sensing side; and a lens between the waveguide tip and the monolithic substrate. The lens relays optical signals between the waveguide tip and the monolithic substrate.
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130.发明公开公开(公告)号：US20230152156A1
公开(公告)日：2023-05-18
申请号：US18092394
申请日：2023-01-02
Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
Inventor： Quan LIU
CPC classification number: G01J3/45 , G01J3/0208 , G01J3/021 , G01J3/18 , G01J2003/451
Abstract: The present disclosure provides a radio frequency tagging optical spectrometer, comprising: a dynamic dispersion device, the dynamic dispersion device receiving a beam comprising more than two wavelength components and being driven by driving radio frequency signals, and the dynamic dispersion device encoding the intensity of each wavelength component into the amplitude of a different beat radio frequency signal based on different driving radio frequency signals, wherein the beat frequency of the different beat radio frequency signal is equal to the frequency of the corresponding driving radio frequency signal; a single-channel photodetector for detecting the sum of beat radio frequency signals formed by adding all the beat radio frequency signals; and a processing unit for performing Fourier transform on the sum of the beat radio frequency signals to obtain a spectrum or an associated radio frequency spectrum by which the optical spectrum is obtained.
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