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公开(公告)号：US12247879B2
公开(公告)日：2025-03-11
申请号：US18434658
申请日：2024-02-06
Applicant: Samsung Electronics Co., Ltd.
Inventor： Radwanul Hasan Siddique , Daniel Assumpcao , Hyuck Choo , Hyochul Kim
Abstract: Optical spectrometers may be used to determine the spectral components of electromagnetic waves. Spectrometers may be large, bulky devices and may require waves to enter at a nearly direct angle of incidence in order to record a measurement. What is disclosed is an ultra-compact spectrometer with nanophotonic components as light dispersion technology. Nanophotonic components may contain metasurfaces and Bragg filters. Each metasurface may contain light scattering nanostructures that may be randomized to create a large input angle, and the Bragg filter may result in the light dispersion independent of the input angle. The spectrometer may be capable of handling about 200 nm bandwidth. The ultra-compact spectrometer may be able to read image data in the visible (400-600 nm) and to read spectral data in the near-infrared (700-900 nm) wavelength range. The surface area of the spectrometer may be about 1 mm2, allowing it to fit on mobile devices.
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公开(公告)号：US12247877B2
公开(公告)日：2025-03-11
申请号：US17637242
申请日：2020-07-09
Applicant: FiSens GmbH
Inventor： Christian Waltermann , Philip Erik Guhlke , Jan Koch , Wolfgang Schippers
Abstract: The invention relates to a device for optical applications, which has an optical waveguide (10), to which a light source (11) can be connected. The optical waveguide (10) is designed in such a way that light emitted by the connectable light source (11) propagates along a light propagation axis (12). A wavelength-sensitive grating structure (13) in the optical waveguide (10) has detectors (20), which are arranged in such a way that the detectors absorb partial amounts of the light of the light source (11) that is scattered by the wavelength-sensitive grating structure (13). The grating structure (13) in the optical waveguide (10) is constructed of periodically arranged ellipsoid structural elements (14). The ellipsoid structural elements (14) have a different index of refraction than the material of the optical waveguide (10) surrounding the ellipsoid structural elements. The ellipsoid structural elements (14) have a longitudinal axis and a short axis, which are substantially perpendicular to the light propagation axis (12). Depending on the wavelength, partial amounts of the light scattered by the grating structure (13) are coupled out of the optical waveguide (10). The light hits the detectors (20). An absorbing or partially reflecting filter (30) is arranged between at least one of the detectors (20) and the optical waveguide (10). The detectors (20) have measuring elements for the intensity of the partial amount of the light that hits the detector (20) in question. An evaluation element is provided, which determines a wavelength from the intensity ratio of the plurality of detectors (20). The detectors (20) are arranged in such a way that the detectors either are arranged opposite each other on different sides of the long axes of the
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公开(公告)号：US20250076121A1
公开(公告)日：2025-03-06
申请号：US18948528
申请日：2024-11-15
Applicant: FUJIFILM CORPORATION
Inventor： Yu MISHIMA
Abstract: Provided is a calibration member including an imaging target surface, in which the imaging target surface includes a central region, a frame surrounding an outer edge of the central region, a pair of first patch groups including a plurality of patches that extend in a first direction and facing each other with the central region interposed therebetween, and a pair of second patch groups including a plurality of patches that extend in a second direction intersecting the first direction and facing each other with the central region interposed therebetween, and the calibration member is for performing, by using the patches, calibration with respect to an image obtained by imaging the imaging target surface.
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公开(公告)号：US12235207B2
公开(公告)日：2025-02-25
申请号：US17906387
申请日：2021-03-18
Applicant: THERMO FISHER SCIENTIFIC (ECUBLENS) SARL
Inventor： Patrick Lancuba
Abstract: A multipass cell (300) comprising: a first reflector arrangement (305A, 305B); and a second reflector arrangement (307), the first (305A, 305B) and second (307) reflector arrangements defining an optical cavity (315) therebetween and the cell; wherein the first reflector arrangement (305A, 305B) is configured such that light incident on the first reflector arrangement (305A, 305B) is at least partially retroreflected towards the second reflector arrangement (307), wherein the second reflector (307) arrangement comprises a concave surface that is reflective, wherein at least one of the first (305A, 305B) and second (307) reflector arrangements comprises an aperture (306) for allowing light to enter and/or exit the optical cavity (315).
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公开(公告)号：US12228451B2
公开(公告)日：2025-02-18
申请号：US17885042
申请日：2022-08-10
Applicant: Wisconsin Alumni Research Foundation
Inventor： Scott Sanders
Abstract: An absorption spectrometer with self-referencing calibration takes two measurements along a first and second path having different distances through a sample while largely preserving all other aspects of the optical path and system constant. Comparing these two measurements allows extraction of the spectrum largely free from instrument-specific artifacts.
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Patent Agency Ranking
公开(公告)号：US20250052612A1
公开(公告)日：2025-02-13
申请号：US18931815
申请日：2024-10-30
Applicant: HAMAMATSU PHOTONICS K.K.
Inventor： Takashi Kasahara , Katsumi Shibayama , Kei Tabata , Masaki Hirose , Hiroki Oyama , Yumi Kuramoto
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：US12216006B2
公开(公告)日：2025-02-04
申请号：US17729220
申请日：2022-04-26
Applicant: SHIMADZU CORPORATION
Inventor： Tadafumi Kamikake
Abstract: An infrared light source device includes: a heater portion which emits infrared light by being heated; and a cover member arranged to cover an entire circumference of the heater portion without contacting the heater portion, and having a hole formed therein for emitting the infrared light from the heater portion to outside. A material for the cover member is a pure aluminum (an aluminum alloy with a purity of 99% or more), which has a high heat reflectivity and is less likely to be denatured by heat dissipation from the heater portion.
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公开(公告)号：US20250035485A1
公开(公告)日：2025-01-30
申请号：US18619358
申请日：2024-03-28
Inventor： Marshall A. Mullins , Charles R. Upton , Tyler Fitzsimmons , Joseph Morris
Abstract: Provided is a gyroscope stabilized gimbal assembly for collecting and timestamping video data and laser measurement data. The assembly can be used on multiple platforms and provides an ISR video camera system and one or more laser measurement devices, including photodetectors, thermopiles, filters, and analog to digital converters. The components are mounted to a bracket that can be installed and removed from the assembly to collect/record measurement data from the devices interacting with the laser beam. A processor collects and records measurement data from the devices interacting with the laser beam and calculates optical power data, irradiance data, and wavelength data. A storage device stores a first set of data comprising video data from said camera system and a second set of data comprising optical power data, irradiance data, and wavelength data, wherein said first and second set of data are timestamped, separated, and not comingled.
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29.发明授权公开(公告)号：US12209910B2
公开(公告)日：2025-01-28
申请号：US18092394
申请日：2023-01-02
Applicant: NANYANG TECHNOLOGICAL UNIVERSITY
Inventor： Quan Liu
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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公开(公告)号：US12209906B2
公开(公告)日：2025-01-28
申请号：US18063309
申请日：2022-12-08
Applicant: VIAVI Solutions Inc.
Inventor： William D. Houck
Abstract: An optical sensor device may include an optical sensor that includes a set of sensor elements; an optical filter that includes one or more channels; a phase mask configured to distribute a plurality of light beams associated with a subject in an encoded pattern on an input surface of the optical filter; and one or more processors. The one or more processors may be configured to obtain, from the optical sensor, sensor data associated with the subject and may determine a distance of the subject from the optical sensor device. The one or more processors may select, based on the distance, a processing technique to process the sensor data, wherein the processing technique is an imaging processing technique or a spectroscopic processing technique. The one or more processors may process, using the selected processing technique, the sensor data to generate output data and may provide the output data.
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