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公开(公告)号：US20230093899A1
公开(公告)日：2023-03-30
申请号：US17936923
申请日：2022-09-30
Applicant: Chongqing Institute of East China Normal University , East China Normal University , Yunnan Huapu Quantum Material Co., Ltd , ROI Optoelectronics Technology CO, LTD. , Chongqing Huapu Scientific Instrument Co.,Ltd. , Chongqing Huapu Intelligent Equipment Co., Ltd. , GuangDong ROI Optoelectronics Technology Co., Ltd.
Inventor： Heping ZENG , Mengyun HU
Abstract: A multipulse-induced spectroscopy method based on a femtosecond plasma grating includes: pre-exciting a sample on a stage by providing a femtosecond pulse to form the femtosecond plasma grating; providing a post-pulse on the sample at an angle to excite the sample to generate a plasma, wherein the post-pulse comprises one or more femtosecond pulses, there is a time interval between the femtosecond pulse and the post-pulse, and the time interval is less than a lifetime of the femtosecond plasma grating; and receiving and analyzing a fluorescence emitted from the plasma to determine element information of the sample.
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公开(公告)号：US20230090261A1
公开(公告)日：2023-03-23
申请号：US17759492
申请日：2021-01-25
Applicant: SONY GROUP CORPORATION
Inventor： TUO ZHUANG
Abstract: A modulator (300) according to the embodiment is a modulator provided between a diffraction grating (944) and an image sensor (946), receives a light ray directed to the image sensor (946) from the diffraction grating (944), and changes a travel direction of the light ray emitted toward the image sensor (946) so as to bend a recording direction of a diffraction image for each wavelength of the light ray on a light receiving surface of the image sensor (946).
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公开(公告)号：US11566942B1
公开(公告)日：2023-01-31
申请号：US17203511
申请日：2021-03-16
Applicant: Wasatch Photonics, Inc.
Inventor： Elroy Louis Pearson , Dominic Speer , Brandon N. Langedyke
Abstract: A duplex wideband grating includes a first diffraction element and a second diffraction element. The first diffraction element and the second diffraction element may reside in a single volume or in two separate volumes. The first diffraction element may include a first set of Bragg planes, and the second diffraction element may include a second set of Bragg planes. The first diffraction element may be designed to have a peak diffraction efficiency at a first wavelength, and the second diffraction element may be designed to have a peak diffraction efficiency at a second wavelength different from the first wavelength. The first diffraction element and the second diffraction element may be designed to achieve a same angle of dispersion between wavelengths. The duplex wideband grating may have a broader bandwidth with higher average diffraction efficiency across the broader bandwidth than either the first diffraction element or the second diffraction element.
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公开(公告)号：US20230011177A1
公开(公告)日：2023-01-12
申请号：US17859813
申请日：2022-07-07
Applicant: Apple Inc.
Inventor： Mark Alan Arbore
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：US11536606B2
公开(公告)日：2022-12-27
申请号：US16631722
申请日：2019-07-23
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xianqin Meng , Wei Wang , Jifeng Tan , Xiandong Meng , Xiaochuan Chen , Jian Gao , Fangzhou Wang , Pengxia Liang
Abstract: An optical device and a spectral detection apparatus are provided. The optical device includes an optical waveguide, including: a polychromatic light channel configured to transport a polychromatic light beam, and provided with a light incident surface for receiving the incident polychromatic light beam at an input end of the polychromatic light channel; a chromatic dispersion device arranged downstream from the polychromatic light channel in an optical path and configured to separate the polychromatic light beam from the polychromatic light channel into a plurality of monochromatic light beams; and a plurality of monochromatic light channels arranged downstream from the chromatic dispersion device in the optical path and configured to respectively conduct the plurality of monochromatic light beams with different colors from the chromatic dispersion device. Monochromatic light output surfaces are respectively provided at output ends of the plurality of monochromatic light channels and configured to output the monochromatic light beams.
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Patent Agency Ranking
公开(公告)号：US11506536B2
公开(公告)日：2022-11-22
申请号：US16561473
申请日：2019-09-05
Applicant: Kioxia Corporation
Inventor： Taro Shiokawa
Abstract: According to one embodiment, there is provided a measuring apparatus including a measurement section and a control section. The measurement section is configured to acquire a response from a sample. The control section is configured to compare a loading obtained by performing principal component analysis in advance with a first evaluation-use loading obtained by performing principal component analysis onto the response acquired from the sample, and to generate a first reliability index for measurement using principal component analysis, in accordance with a comparison result.
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公开(公告)号：US20220357199A1
公开(公告)日：2022-11-10
申请号：US17620978
申请日：2020-06-26
Applicant: Konica Minolta, Inc.
Inventor： Katsutoshi TSURUTANI
Abstract: A spectrometer includes: a diffraction means that diffracts light being measured which has entered via an entrance unit; a main sensor that receives the light being measured which has been diffracted by the diffraction means; at least one auxiliary sensor disposed in an optical path of a luminous flux that does not reach the main sensor among luminous fluxes that have entered via the entrance unit, the auxiliary sensor receiving the luminous flux; and a correction means that corrects an output value of the main sensor on the basis of an output value of the auxiliary sensor.
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公开(公告)号：US11493386B2
公开(公告)日：2022-11-08
申请号：US17256918
申请日：2019-06-17
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takafumi Yokino , Katsuhiko Kato
Abstract: A spectroscopic module includes a support body having a bottom wall portion and a side wall portion surrounding a space on one side of the bottom wall portion, a spectroscopic portion provided on the one side of the bottom wall portion and having a plurality of grating grooves, a photodetector attached to the side wall portion so as to face the spectroscopic portion via the space and having a plurality of photodetection channels, a plurality of first terminals provided on a surface of the support body on a side opposite to the space so as to be disposed along the surface of the support body and electrically connected to the photodetector, and a wiring unit having a plurality of second terminals respectively facing the plurality of first terminals and respectively joined to the plurality of first terminals and a plurality of third terminals respectively and electrically connected to the plurality of second terminals.
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公开(公告)号：US20220333987A1
公开(公告)日：2022-10-20
申请号：US17849286
申请日：2022-06-24
Applicant: FUJIFILM Corporation
Inventor： Hiroshi SATO , Yukito SAITOH
Abstract: Provided are a hyperspectral sensor and a hyperspectral camera in which influence of external information such as a reflecting material is reduced such that the spectral data accuracy of a subject to be acquired can be improved. In the hyperspectral sensor in which light from a subject is split into light components in a plurality of wavelength ranges by a spectral optical element and each of the light components in the wavelength ranges is received by a sensor array consisting of a plurality of photodetection elements to acquire spectral data in which spectral information of the subject is associated with each of the photodetection elements, a polarization diffraction element that emits polarized light is used as the spectral optical element.
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公开(公告)号：US20220252453A1
公开(公告)日：2022-08-11
申请号：US17672114
申请日：2022-02-15
Applicant: THE UNIVERSITY OF TOKYO
Inventor： Daisuke HIRANO , Makoto GONOKAMI , Kosuke YOSHIOKA
Abstract: A coherent light source outputs coherent light including high-order harmonics obtained by irradiating short-pulse laser light to a nonlinear medium. A spectrometer includes a grating that diffracts the coherent light and an image sensor that measures an image of the diffracted light. In a first state, a first double slit having a pair of apertures spaced apart in a first direction is arranged at a predetermined position between coherent light source and an incident slit of spectrometer. In a second state, a second double slit that is a replica of first double slit is arranged at the predetermined position as a replacement of first double slit with a sample held in one aperture. A calculation processing device calculates optical constants of the sample based on interference images measured in the first and second states.
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