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公开(公告)号：US20250164313A1
公开(公告)日：2025-05-22
申请号：US18842802
申请日：2022-11-18
Applicant: INNOLIGHT TECHNOLOGY (SUZHOU) LTD.
Inventor： Chenlei LI , Xuezhe ZHENG
Abstract: The invention relates to a spectrum scanning assembly and an optical semiconductor element. The spectrum scanning assembly includes a band-pass waveguide assembly and multiple micro-ring resonators, and the band-pass waveguide assembly is respectively connected to the multiple micro-ring resonators; in which: the band-pass waveguide assembly is used to divide an optical signal to be tested into multiple band-pass optical signals with different central wavelengths and then respectively input into the multiple micro-ring resonators; each micro-ring resonator is used to perform scanning for resonant wavelengths in the band-pass optical signals to form first spectral information; in which after beam combination is performed on multiple pieces of first spectral information formed by the multiple micro-ring resonators, second spectral information may be formed. The spectrum scanning assembly and the optical semiconductor element of the invention have high spectral scanning precision.
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公开(公告)号：US12276547B2
公开(公告)日：2025-04-15
申请号：US18022276
申请日：2022-07-04
Inventor： Haiyan Luo , Wei Xiong , Zhiwei Li , Wei Jin , Dekang Wang , Qiansheng Wang
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：US12264966B2
公开(公告)日：2025-04-01
申请号：US18562332
申请日：2023-04-06
Applicant: NANJING NUOYUAN MEDICAL DEVICES CO., LTD.
Inventor： Huiming Cai , Ziyang Wang
Abstract: Provided are a fluorescence imaging probe and a handheld imaging prober, relating to the technical field of medical devices. The fluorescence imaging probe includes a dichroic filter and an image detector, the dichroic filter is arranged at an included angle of 45° with a direction of a main optical axis of incident excitation light, the incident excitation light is reflected by the dichroic filter to a target detection position, the reflected incident excitation light excites a fluorescent substance at the target detection position to form fluorescence, a main optical axis of the fluorescence is arranged coaxially with the image detector, the fluorescence is incident to the image detectors through the dichroic filter, and the image detector converts the received fluorescence into an image signal.
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公开(公告)号：US12251194B2
公开(公告)日：2025-03-18
申请号：US18646390
申请日：2024-04-25
Applicant: Omni Medsci, Inc.
Inventor： Mohammed N. Islam
IPC: A61B5/00 , A61B5/145 , A61B5/1455 , A61C19/04 , G01J3/02 , G01J3/10 , G01J3/14 , G01J3/28 , G01J3/42 , G01J3/453 , G01N21/35 , G01N21/3504 , G01N21/3563 , G01N21/359 , G01N21/39 , G01N21/88 , G01N33/02 , G01N33/15 , G01N33/44 , G01N33/49 , G16H40/67 , G16Z99/00 , A61C1/00 , G01J3/12 , G01J3/18 , G01M3/38 , G01N21/85 , G01N21/95 , H01S3/00 , H01S3/067 , H01S3/30
Abstract: A remote sensing system for time-of-flight measurements may comprise an array of laser diodes with Bragg reflectors operating in the near-infrared wavelength range synchronized to a detection system comprising lenses, spectral filters and a photodiode array coupled to a processor. The time-of-flight depth information may be combined with various camera imaging systems. The camera system may comprise a lens system, prism and a sensor. In another embodiment, the data from two cameras may be combined with the time-of-flight depth information. Yet another embodiment comprises an imaging system with another array of laser diodes followed by a beam splitter and a detection system. The remote sensing system may be coupled to a smart phone, tablet or wearable device, and the combined data may provide three-dimensional information about at least some part of an object. Also, artificial intelligence may be used in the processing to make decisions regarding the depth and images.
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公开(公告)号：US12196611B2
公开(公告)日：2025-01-14
申请号：US17657233
申请日：2022-03-30
Applicant: VIAVI Solutions Inc.
Inventor： William D. Houck , Fred Van Milligen
Abstract: A concealment component for an optical sensor device includes an optical filter and one or more diffusive optical structures. The one or more diffusive optical structures are configured to distribute light in a diffused pattern on an input surface of the optical filter. The optical filter is configured to pass a first set of light beams, of the light distributed in the diffused pattern on the input surface of the optical filter, that are associated with a particular wavelength range, and prevent a second set of light beams, of the light distributed in the diffused pattern on the input surface of the optical filter, that are not associated with the particular wavelength range, from passing. Preventing the second set of light beams from passing is to cause the second set of light beams to be directed away from or absorbed by the concealment component in a concealment pattern.
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Patent Agency Ranking
6.发明授权公开(公告)号：US12193790B2
公开(公告)日：2025-01-14
申请号：US18438144
申请日：2024-02-09
Applicant: OMNI MEDSCI, INC.
Inventor： Mohammed N. Islam
IPC: A61B5/00 , A61B5/145 , A61B5/1455 , A61C19/04 , G01J3/02 , G01J3/10 , G01J3/14 , G01J3/28 , G01J3/42 , G01J3/453 , G01N21/35 , G01N21/3504 , G01N21/3563 , G01N21/359 , G01N21/39 , G01N21/88 , G01N33/02 , G01N33/15 , G01N33/44 , G01N33/49 , G16H40/67 , G16Z99/00 , A61C1/00 , G01J3/12 , G01J3/18 , G01M3/38 , G01N21/85 , G01N21/95 , H01S3/00 , H01S3/067 , H01S3/30
Abstract: An optical system comprises a wearable device for measuring one or more physiological parameters. The physiological parameters may change in response to stretching of the hand or movement of fingers or thumb of the user, or the parameters may be related to blood constituents or blood flow. The wearable device comprises a light source with a plurality of semiconductor diodes and a detection system that measures reflected light from tissue comprising skin. The semiconductor diodes may be light emitting diodes or laser diodes. The signal to noise ratio for the output signal may be improved by synchronizing the detection system to the light source, increasing light intensity of at least one of the plurality of semiconductor diodes from an initial light intensity, and using change detection that compares light on versus light off for the detection system output. The wearable device is also configured to identify an object.
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公开(公告)号：US20240410757A1
公开(公告)日：2024-12-12
申请号：US18809402
申请日：2024-08-20
Applicant: VIAVI Solutions Inc.
Inventor： William D. HOUCK
Abstract: An optical sensor device, includes an optical sensor that has a set of sensor elements, an optical filter that includes a plurality of regions, and one or more processors. A region, of the plurality of regions, includes a first set of optical channels comprising optical channels that are configured to pass light associated with respective subranges of a first wavelength range, a second set of optical channels comprising optical channels that are configured to pass light associated with respective subranges of a second wavelength range, and a third set of optical channels comprising optical channels that are configured to pass light associated with respective subranges of a third wavelength range. The one or more processors are configured to obtain, from the optical sensor, sensor data associated with a scene and determine image information associated with the scene based on the spectral information.
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公开(公告)号：US20240385043A1
公开(公告)日：2024-11-21
申请号：US18694232
申请日：2022-09-08
Applicant: KYOTO UNIVERSITY
Inventor： Shigeki TAKEUCHI , Yu MUKAI , Ryo OKAMOTO
Abstract: An image sensor (3) includes a light receiving surface on which a plurality of pixels are disposed, and detects a signal photon. A memory (42) stores, as a map, a correspondence between a parameter indicating the position of each pixel on the light receiving surface and the wavelength of the signal photon detected by the pixel. A processor (41) executes arithmetic processing for calculating the spectral characteristic of a sample disposed on an optical path of an idler photon. An optical system (21) includes a moving mirror (209) configured to apply modulation to the phase of 10 quantum interference. The processor (41) acquires, from a predetermined number of pixels disposed on the light receiving surface, a variation in a detection intensity of the signal photon generated by the modulation by moving mirror (209), and calculates the spectral characteristic based on the visibility of the quantum interference obtained from the variation and the map.
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公开(公告)号：US20240377252A1
公开(公告)日：2024-11-14
申请号：US18292507
申请日：2022-07-22
Applicant: NATIONAL UNIVERSITY OF SINGAPORE
Inventor： Zi Heng LIM , Yi QI , Senthil Kumar ANANTHARAJAN , Chengkuo LEE , Guangya ZHOU
Abstract: Infrared spectrometer and method of performing infrared spectrometry. In one embodiment, the method comprises the steps of providing a first single pixel detector sensitive to infrared light in a first spectral range; providing an entrance slit for receiving an infrared light signal; disposing a moveable encoding mask between the entrance slit and the first single pixel detector for encoding based multiplexing, the moveable encoding mask comprising at least three adjacent coding sections along an encoding moving direction thereof, each coding section comprising the same coding pattern in a cyclic manner such that a last encoding step of one encoding section is the same as a first encoding step in a next encoding section step; disposing a dispersion and imaging optics between the entrance slit and the moveable encoding mask for dispersing the infrared signal and for imaging the dispersed infrared signal onto the moveable encoding mask; disposing a collection optics between the moveable encoding mask and the first single pixel detector for collecting an encoding based multiplexed version of the infrared signal onto the first single pixel photodetector; selectively allowing only one of at least first and second bands within the first spectral range to be imaged onto respective ones of the coding sections excluding a first coding section along the encoding moving direction of the moveable encoding mask, in a starting position of the moveable encoding mask; and moving the moveable encoding mask in the encoding moving direction for the encoding based multiplexing.
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公开(公告)号：US12104957B2
公开(公告)日：2024-10-01
申请号：US17620408
申请日：2020-06-25
Applicant: Protea Ltd
Inventor： Chris Daw , Robin Hutchinson
CPC classification number: G01J3/427 , G01J3/0218 , G01J3/108 , G01J3/12 , G01N21/33 , G01N21/3504 , G01N33/0037 , G01N33/0042 , G01J2003/102 , G01J2003/1213 , G01N2021/3155 , G01N2201/08
Abstract: The invention relates to a photometer (30) for analysing the composition of a sample gas. The photometer comprises an infra-red (IR) source (20) configured to direct a first plurality of pulses (40) of IR radiation through the sample gas to an IR detector (26), at least two of the first plurality of pulses being of different wavelength. The photometer further comprises an ultraviolet (UV) source (32) configured to generate a second plurality of pulses (38) of UV radiation for conveyance to a UV detector (36), at least two of the second plurality of pulses being of different wavelength. A path selection arrangement (22, 42-50) is configured to selectively convey different ones of the second plurality of pulses (38) to one of the sample gas and the UV detector (36). The photometer further comprises processing circuitry coupled to the IR source (20), the UV source (32), the IR detector (26), the UV detector (36) and the path selection arrangement (22, 42-50). The processing circuitry is configured to (i) select the wavelength to be used for a given UV pulse of the second plurality of pulses (38), (ii) receive a plurality of detection signals from each of the IR detector (26) and the UV detector (36) and (iii) based on the detection signals, determine a concentration of at least one component of the sample gas. A method for analysing the composition of a sample gas is also disclosed.
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