公开(公告)号：US11821790B2

公开(公告)日：2023-11-21

申请号：US17433793

申请日：2020-03-25

Applicant: ams Sensors Singapore Pte. Ltd.

Inventor： Javier Miguel Sánchez

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/28

CPC classification number: G01J3/027 ,  G01J2003/102 ,  G01J2003/2879

Abstract: An example system includes a first light source, a second light source, a photodetector, and an electronic control device. The electronic control device is operable to cause the first light source to emit first light within a range of wavelengths towards a subject, and measure, using the photodetector, the first light reflected from the subject. The electronic control device is also operable to cause the second light source to emit second light including a plurality of emission peaks within the range of wavelengths, and measure, using the photodetector, the second light. The electronic control device is also operable to determine spectral information regarding the subject based on the measured first light and the measured second light.

公开(公告)号：US20230332950A1

公开(公告)日：2023-10-19

申请号：US18131508

申请日：2023-04-06

Applicant: Hitachi High-Tech Corporation

Inventor： Kaifeng ZHANG ,  Masahiro WATANABE ,  Takenori HIROSE

IPC: G01J3/02 ,  G01J3/10

CPC classification number: G01J3/021 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/10 ,  G01J2003/102

Abstract: Provided is a spectrometry apparatus that suppresses a reduction in usage efficiency of an irradiation energy of a light. A spectrometry apparatus of the disclosure includes a stage on which a sample is placed, an electromagnetic source that emits an electromagnetic wave, one or a plurality of optical elements that transform a spatial energy distribution of the electromagnetic wave and emit the electromagnetic wave, and a reflective objective lens that collects the electromagnetic wave after a transformation of the spatial energy distribution and irradiates the sample with the collected electromagnetic wave.

公开(公告)号：US20230307562A1

公开(公告)日：2023-09-28

申请号：US18023418

申请日：2021-05-26

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tatsuo DOUGAKIUCHI ,  Akio ITO ,  Masahiro HITAKA ,  Tadataka EDAMURA

IPC: H01L31/0352 ,  G01J3/45 ,  G01J3/457 ,  G01J3/10 ,  H01L23/482 ,  H01L31/02 ,  H01L31/0232 ,  H01L31/0304

CPC classification number: H01L31/035236 ,  G01J3/45 ,  G01J3/457 ,  G01J3/10 ,  H01L23/4821 ,  H01L31/02005 ,  H01L31/02325 ,  H01L31/035281 ,  H01L31/03046 ,  G01J2003/102

Abstract: A photodetector includes: a semiconductor substrate; a mesa portion formed on a major surface of the semiconductor substrate to extend along an optical waveguide direction; a first contact layer; a second contact layer; a first electrode; and an air bridge wiring electrically connected to the first contact layer and the first electrode. When viewed in a direction perpendicular to the major surface of the semiconductor substrate, a length of the mesa portion in the optical waveguide direction is longer than a length of the mesa portion in a direction perpendicular to the optical waveguide direction. The air bridge wiring is led out from the first contact layer to one side in the direction perpendicular to the optical waveguide direction, and is bridged between the first contact layer and the first electrode.

公开(公告)号：US11754844B2

公开(公告)日：2023-09-12

申请号：US17896516

申请日：2022-08-26

Applicant: Magic Leap, Inc.

Inventor： Nicole Elizabeth Samec ,  Nastasja U. Robaina ,  Adrian Kaehler ,  Mark Baerenrodt ,  Eric Baerenrodt ,  Christopher M. Harrises ,  Tammy Sherri Powers

IPC: G02B27/01 ,  G01J3/02 ,  G01J3/42 ,  A61B5/1455 ,  A61B5/11 ,  A61B5/00 ,  G06F3/03 ,  G01J3/10 ,  G06F3/01 ,  G01J3/28 ,  G01J3/427 ,  G01N21/359 ,  G01N33/483 ,  F21V8/00 ,  G02B27/00

CPC classification number: G02B27/0172 ,  A61B5/0075 ,  A61B5/1114 ,  A61B5/1121 ,  A61B5/14551 ,  A61B5/6803 ,  A61B5/743 ,  A61B5/744 ,  G01J3/0248 ,  G01J3/0256 ,  G01J3/0264 ,  G01J3/10 ,  G01J3/108 ,  G01J3/2823 ,  G01J3/42 ,  G01J3/427 ,  G01N21/359 ,  G01N33/483 ,  G02B6/0076 ,  G02B27/017 ,  G06F3/011 ,  G06F3/013 ,  G06F3/0304 ,  G01J2003/106 ,  G01J2003/2826 ,  G01J2003/425 ,  G02B27/0093 ,  G02B2027/014 ,  G02B2027/0125 ,  G02B2027/0138 ,  G02B2027/0187 ,  G06F3/012

Abstract: In some embodiments, a system comprises a head-mounted frame removably coupleable to the user's head; one or more light sources coupled to the head-mounted frame and configured to emit light with at least two different wavelengths toward a target object in an irradiation field of view of the light sources; one or more electromagnetic radiation detectors coupled to the head-mounted member and configured to receive light reflected after encountering the target object; and a controller operatively coupled to the one or more light sources and detectors and configured to determine and display an output indicating the identity or property of the target object as determined by the light properties measured by the detectors in relation to the light properties emitted by the light sources.

公开(公告)号：US20230277065A1

公开(公告)日：2023-09-07

申请号：US18118013

申请日：2023-03-06

Applicant: Omni Medsci, Inc.

Inventor： Mohammed N. ISLAM

IPC: A61B5/00 ,  G01J3/10 ,  G01J3/28 ,  G01J3/14 ,  G01J3/453 ,  G01J3/42 ,  G01J3/02 ,  G01N21/35 ,  G16H40/67 ,  G01N21/359 ,  A61B5/145 ,  G01N33/15 ,  G01N33/49 ,  G01N21/3563 ,  G01N21/39 ,  G01N33/02 ,  G01N33/44 ,  G01N21/88 ,  A61B5/1455 ,  G16Z99/00 ,  A61C19/04 ,  G01N21/3504

CPC classification number: A61B5/0088 ,  A61B5/0075 ,  G01J3/108 ,  G01J3/28 ,  G01J3/14 ,  G01J3/453 ,  G01J3/42 ,  A61B5/7257 ,  G01J3/0218 ,  G01N21/35 ,  G16H40/67 ,  G01N21/359 ,  A61B5/0013 ,  A61B5/0022 ,  A61B5/0086 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/4547 ,  G01N33/15 ,  G01N33/49 ,  G01J3/2823 ,  G01N21/3563 ,  G01N21/39 ,  G01N33/02 ,  G01N33/442 ,  G01N21/88 ,  A61B5/6801 ,  A61B5/7405 ,  A61B5/742 ,  G01N33/025 ,  A61B5/1455 ,  G16Z99/00 ,  A61B5/7203 ,  A61C19/04 ,  G01J3/02 ,  G01N21/3504 ,  G01N2201/129 ,  H01S3/302

Abstract: A measurement system comprising one or more semiconductor diodes configured to penetrate tissue comprising skin. The detection system comprising a camera, which may also include a direct or indirect time-of-flight sensor. The detection system synchronized to the pulsing of the semiconductor diodes, and the camera further coupled to a processor. The detection system non-invasively measuring blood within the skin, measuring hemoglobin absorption between 700 to 1300 nm, and the processor deriving physiological parameters and comparing properties between different spatial locations and variation over time. The semiconductor diodes may comprise vertical cavity surface emitting lasers, and the detection system may comprise single photon avalanche photodiodes. The measurement system may be used to observe eye parameters and differential blood flow. The system may be used with photo-bio-modulation therapy, or it may be used in advanced driver monitoring systems for multiple functions including head pose, eye tracking, facial authentication, and smart restraint control systems.

公开(公告)号：US11747201B2

公开(公告)日：2023-09-05

申请号：US17375897

申请日：2021-07-14

Applicant: UNIVERSITY OF THE WEST OF SCOTLAND

Inventor： Ewan Waddell ,  Desmond Gibson

IPC: G01J3/10 ,  G01J3/02 ,  G01J3/12 ,  G01J3/42 ,  G01N21/3504 ,  G01N21/3577

CPC classification number: G01J3/108 ,  G01J3/0208 ,  G01J3/12 ,  G01J3/42 ,  G01J2003/1226 ,  G01N21/3504 ,  G01N21/3577

Abstract: An optical sensor for multispectral analysis of a fluid sample comprises at least one light source, at least one interference filter, and a plurality of light detectors arranged such that light emitted by the at least one light source is incident on the at least one interference filter. There is a spatial variation in the intensity of light incident on the said at least one interference filter.

公开(公告)号：US20230266166A1

公开(公告)日：2023-08-24

申请号：US18043591

申请日：2021-08-05

Applicant: Ushio Denki Kabushiki Kaisha

Inventor： Toshikazu NAGASHIMA

IPC: G01J3/10 ,  G02B6/04 ,  G02F1/365

CPC classification number: G01J3/108 ,  G02B6/04 ,  G02F1/365

Abstract: The disclosure is to provide a practical structure of a pulse spectrometer that transmits pulsed light by dividing it through a plurality of fibers for pulse stretching, and makes the divided light beams overlap in a same region on an irradiation surface. A broadband pulsed light from a pulse light source is divided according to wavelength by an arrayed waveguide grating used as a dividing element, the pulse is then correlated one-to-one between time and wavelength while being transmitted through a bundle fiber, and then emitted through an irradiation unit onto an object. The individual light beams output from the individual cores of the bundle fiber are overlapped by a first lens in a substantially same region on a first plane perpendicular to an optical axis, and an image in the first region is projected by second lenses so as to be emitted on the object.

公开(公告)号：US20230243698A1

公开(公告)日：2023-08-03

申请号：US17929286

申请日：2022-09-01

Applicant: James F. Coward ,  David Alen Pechner ,  Gregory Mitchell ,  Ji Li

Inventor： James F. Coward ,  David Alen Pechner ,  Gregory Mitchell ,  Ji Li

IPC: G01J3/10 ,  G01J3/28 ,  G06T7/521

CPC classification number: G01J3/108 ,  G01J3/2823 ,  G06T7/521 ,  G06T2207/10048 ,  G01J2003/2826 ,  G06T2207/10036

Abstract: Shortwave infrared (SWIR) hyperspectral imaging (HSI) systems comprise a supercontinuum laser source configured to illuminate objects and a receiver comprising a spectrometer configured to receive light reflected from the objects. In some cases, hyperspectral images can be created by raster scanning of the source/receiver across a scene. The supercontinuum laser source provides active illumination to allow collection of hyperspectral imagery during day (including overcast conditions) and night.

公开(公告)号：US20230221106A1

公开(公告)日：2023-07-13

申请号：US18121164

申请日：2023-03-14

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tomofumi Suzuki ,  Kyosuke Kotani ,  Tatsuya Gugimoto ,  Yutaka Kuramoto ,  Katsumi Shibayama ,  Noburo Hosokawa

IPC: G01B9/02 ,  G01J3/45 ,  G01J3/02 ,  B81B3/00 ,  G02B27/14 ,  G02B26/08 ,  G02B7/182 ,  G01J3/10 ,  G01J3/14 ,  G01J3/453

CPC classification number: G01B9/02051 ,  G01J3/45 ,  G01J3/0202 ,  G01J3/021 ,  B81B3/00 ,  G02B27/144 ,  B81B3/0021 ,  B81B3/007 ,  G02B26/0816 ,  G02B7/182 ,  G01J3/108 ,  G01J3/0237 ,  G01B9/02049 ,  G02B26/0833 ,  G01J3/14 ,  G02B26/0841 ,  G01B2290/35 ,  G01J3/4532 ,  G01B2290/25 ,  B81B2203/0154 ,  G01J3/4535 ,  G01J2003/104 ,  B81B2201/042

Abstract: In an optical device, a base and a movable unit are constituted by a semiconductor substrate including a first semiconductor layer, an insulating layer, and a second semiconductor layer in this order from one side in a predetermined direction. The base is constituted by the first semiconductor layer, the insulating layer, and the second semiconductor layer. The movable unit includes an arrangement portion that is constituted by the second semiconductor layer. The optical function unit is disposed on a surface of the arrangement portion on the one side. The first semiconductor layer that constitutes the base is thicker than the second semiconductor layer that constitutes the base. A surface of the base on the one side is located more to the one side than the optical function unit.

公开(公告)号：US11674846B2

公开(公告)日：2023-06-13

申请号：US17447951

申请日：2021-09-17

Applicant: VIAVI Solutions Inc.

Inventor： Curtis R. Hruska

IPC: G01J3/02 ,  G01J3/42 ,  G01N21/27 ,  G01J3/10

CPC classification number: G01J3/0297 ,  G01J3/027 ,  G01J3/42 ,  G01N21/274 ,  G01J3/0205 ,  G01J3/10 ,  G01N2201/1273 ,  G01N2201/12707 ,  G01N2201/12715 ,  G01N2201/12723 ,  G01N2201/12738

Abstract: A device may determine a calibration value for a spectrometer using light from a first light source; deactivate the first light source after determining the calibration value; perform measurement with regard to a sample based on the calibration value, wherein the measurement of the sample is performed using light from a second light source; determine that the calibration value is to be updated; and update the calibration value using the light from the first light source.