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公开(公告)号：US20210033466A1
公开(公告)日：2021-02-04
申请号：US16778164
申请日：2020-01-31
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Hyochul KIM , Younggeun Roh , Yeongsang Park
Abstract: Provided is an optical filter including a plurality of bandpass filters having center wavelengths of light that are different from one another, wherein each of the plurality of bandpass filters includes a cavity layer, a first Bragg reflective layer provided on an upper surface of the cavity layer, and a second Bragg reflective layer provided on a lower surface of the cavity layer opposite to the upper surface, wherein the cavity layer has a thickness greater than A/n, where A is a center wavelength of light of each of the bandpass filters and n is an effective refractive index of the cavity layer, and wherein each of the first Bragg reflective layer and the second Bragg reflective layer includes three or more material layers having different refractive indices from one another.
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公开(公告)号：US20210033457A1
公开(公告)日：2021-02-04
申请号：US16964001
申请日：2019-01-25
Applicant: Jed Khoury
Inventor： Jed Khoury
Abstract: According to some embodiments, a Micro Wideband Spectroscopic Analysis Device (MWSAD) is designed to operate from the visible to the far infrared. The MWSAD is the first unified platform to implement nearly all kind of molecular spectroscopy. This design is based on combining/integrating Diffractive Focusing Element (DFE) such as Fresnel lens/Zone plate with wide and finite range tuning devices. The wide range tuning devices are tunable lenses and/or a long stroke linear motor. The finite tuning devices are micro pinhole controlled by MEMS/PZT actuator. The MEMS/PZT actuator is used for finite tuning the micro pinhole location across the chromatic focuses of the Fresnel lens/DFE. The long stroke linear motor is used for wide range tuning the pinhole location across the chromatics focuses. The tunable lens is used for wideband tuning the chromatics focuses locations within the micro pinhole.
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公开(公告)号：US20210018720A1
公开(公告)日：2021-01-21
申请号：US17032406
申请日：2020-09-25
Applicant: Eric Todd Marple , Kirk David Urmey , John Meckert
Inventor： Eric Todd Marple , Kirk David Urmey , John Meckert
Abstract: The technology provides a spectroscopy system having two or more spectrometers with substantially uniform focal lengths. The spectrometers include a detector that converts optical signals into electrical signals to render spectral data. The spectroscopy system includes a computing device that is electrically coupled to one or more detectors to receive the spectral data and compare the spectral data against other spectral data. The other spectral data originates from spectrometers that have substantially similar focal lengths, slit widths, excitation laser wavelengths, or any combination of these. The technology includes an application server that is communicatively coupled to a second spectroscopy system. The application server includes software that enables data sharing among the two or more spectroscopy systems, including sharing the spectral data and the other spectral data. The application server compares sampled spectral data against stored spectral data to identify a match.
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公开(公告)号：US20210011302A1
公开(公告)日：2021-01-14
申请号：US17034132
申请日：2020-09-28
Applicant: Cymer, LLC
Inventor： Eric Anders Mason
IPC: G02B27/42 , G01J3/06 , G01J3/14 , G01J3/18 , G03F7/20 , H01S3/08 , G02B26/00 , H01L21/027 , H01S3/00 , H01S3/23
Abstract: A spectral feature selection apparatus includes a dispersive optical element arranged to interact with a pulsed light beam; three or more refractive optical elements arranged in a path of the pulsed light beam between the dispersive optical element and a pulsed optical source; and one or more actuation systems, each actuation system associated with a refractive optical element and configured to rotate the associated refractive optical element to thereby adjust a spectral feature of the pulsed light beam. At least one of the actuation systems is a rapid actuation system that includes a rapid actuator configured to rotate its associated refractive optical element about a rotation axis. The rapid actuator includes a rotary stepper motor having a rotation shaft that rotates about a shaft axis that is parallel with the rotation axis of the associated refractive optical element.
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公开(公告)号：US20210003446A1
公开(公告)日：2021-01-07
申请号：US16891931
申请日：2020-06-03
Applicant: Crystalvue Medical Corporation
Inventor： William WANG , Che-Liang TSAI , Chung-Cheng CHOU
Abstract: A spectrometer is disclosed. The spectrometer includes a fiber input, a collimator lens, a rotating shaft, a grating, a focal lens and a focal plane which have arranged in order. A broadband incident light of the fiber input becomes a first parallel beam through the collimator lens and separated by the grating into multiple parallel beams of different wavelengths and then focused by the focal lens to emit an output beams to an imaging position on the focal plane. The spectrometer can rotate the collimator lens and fiber input to change the imaging position on the focal plane.
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Patent Agency Ranking
公开(公告)号：US10881336B2
公开(公告)日：2021-01-05
申请号：US15241914
申请日：2016-08-19
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor： Andrei Faraon , Amir Arbabi , Yu Horie
Abstract: A solution containing a target molecule and a reference molecule is illuminated to obtain Raman signals. An optical metasurface is used as a diffractive optical element to split the Raman signal from the target molecule and the Raman signal from the reference molecule. The target and reference Raman signals can be detected at different locations with different photodetectors, and the target molecule concentration in the solution is determined by comparing the target and reference Raman signals.
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公开(公告)号：US10823934B2
公开(公告)日：2020-11-03
申请号：US16579246
申请日：2019-09-23
Applicant: Eric Todd Marple , Kirk David Urmey , John Meckert
Inventor： Eric Todd Marple , Kirk David Urmey , John Meckert
IPC: G01J3/28 , G02B7/10 , G02B5/32 , G02B5/18 , G03H1/02 , G02B7/02 , G01J3/02 , G01J3/18 , G02B27/30 , G01J3/44
Abstract: The technology provides two or more spectrometers with substantially uniform focal lengths. A method includes adjusting a size of a first air gap associated with a first lens in order to modify a first focal length and securing a relative position of a first body and a second body of the first lens to set the first focal length at a first value for a first spectrometer. The method further includes adjusting a size of a second air gap associated with a second lens provided in a second spectrometer in order to modify a second focal length and securing a relative position of a first body and a second body of the second lens to set the second focal length at a second value for a second spectrometer. The first and second values are selected to render the first focal length substantially equal to the second focal length.
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公开(公告)号：US20200340859A1
公开(公告)日：2020-10-29
申请号：US16643015
申请日：2019-08-14
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xianqin MENG , Wei WANG , Jifeng TAN , Xiaochuan CHEN , Xiandong MENG , Jian GAO , Fangzhou WANG
Abstract: A spectrometer and a spectral detection and analysis method implemented by the spectrometer. The spectrometer includes an optical device and a detection device. The optical device includes at least one light filter, each of which including at least two light filtering units, so that the optical device can emit at least two kinds of monochromatic light. The detection device includes at least one detector, each of which comprising at least two detection units facing at least two light filtering units in the corresponding light filter in a one-to-one relationship. The monochromatic light emitted from the light filtering unit is emitted along the direction perpendicular to the direction of the light emitting surface.
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公开(公告)号：US10782186B2
公开(公告)日：2020-09-22
申请号：US16676463
申请日：2019-11-07
Applicant: SHIMADZU CORPORATION
Inventor： Tomoari Kobayashi
Abstract: A monochromator 100 includes: a diffraction grating 2 placed within a housing 1 so as to receive light from an entrance 11 and disperse the light into a spectrum from which a component of light having a set wavelength is to be extracted through an exit 12; an optical filter 92 to be removably inserted between the grating and the exit to remove light within a specific wavelength band which is out of the set wavelength; a rotary drive 5 for rotating the grating using a stepping motor; a wavelength-movement information setter 73 which sets wavelength-movement information to be used for rotating the grating from an original position to a rotational position corresponding to the set wavelength; and a wavelength-movement controller 71 which controls the rotary drive to initially rotate the grating to the original position and subsequently rotate it to the aforementioned rotational position based on the wavelength-movement information.
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公开(公告)号：US10775236B2
公开(公告)日：2020-09-15
申请号：US15911714
申请日：2018-03-05
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takafumi Yokino , Katsumi Shibayama
Abstract: A spectrometer includes a light detection element provided with a light passing part, a first light detection part, and a second light detection part, a support fixed to the light detection element such that a space is formed, a first reflection part provided in the support and configured to reflect light passing through the light passing part in the space, a second reflection part provided in the light detection element and configured to reflect the light reflected by the first reflection part in the space, and a dispersive part provided in the support and configured to disperse and reflect the light reflected by the second reflection part to the first light detection part in the space. A plurality of second light detection parts is disposed in a region surrounding the second reflection part.
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