公开(公告)号：US1727173A

公开(公告)日：1929-09-03

申请号：US22320227

申请日：1927-09-30

Applicant: CARL MULLER

Inventor： CARL MULLER

IPC: G01J3/14

CPC classification number: G01J3/14

公开(公告)号：US20250130036A1

公开(公告)日：2025-04-24

申请号：US18492033

申请日：2023-10-23

Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.

Inventor： Hung-Yi TU ,  Meng-Hsiu WU ,  Shang-Fu YEH ,  Chiao-Yi HUANG ,  Calvin Yi-Ping CHAO

IPC: G01B11/02 ,  G01J3/02 ,  G01J3/10 ,  G01J3/12 ,  G01J3/14 ,  G01J3/28

Abstract: A method includes generating light pulses by an illumination source toward an object; collecting the light pulses reflected from the object by an image sensor; generating a first signal-time plot of a sensor signal by the image sensor; generating a second signal-time plot of an index signal, wherein the second signal-time plot of the index signal comprises pulsed signals corresponding to the light pulses, respectively; collecting data from selected time periods of the first signal-time plot of the sensor signal, wherein the selected time periods of the first signal-time plot of the sensor signal are the same as time periods of the light pulses in the second signal-time plot of the index signal; and generating a third signal-time plot of an output signal based on the collected data.

公开(公告)号：US12270703B2

公开(公告)日：2025-04-08

申请号：US18308572

申请日：2023-04-27

Applicant: IDEX HEALTH & SCIENCE LLC

Inventor： Jeffrey M. Bendick ,  John O'Shaughnessy ,  David E. Hargis

IPC: G01J3/14 ,  G01J3/02 ,  G01J3/44 ,  G02B3/06 ,  G02B5/04 ,  G02B3/00

Abstract: Various embodiments of a laser illumination system are disclosed. In some examples, a system includes one or more lasers and a beam combiner configured to direct a combined light beam along a path. The system can include a polychroic optical assembly that receives the combined light beam and to output a first beam of the first light of the first wavelength and a second beam of the second light of the second wavelength. The second beam can be offset from the first beam. The polychroic optical assembly can be a prism assembly. The system can include one or more optical elements configured alter a distribution of light of the first beam to output a first output line at a sample plane, and to alter a distribution of light of the second beam to output a second output line at the sample plane.

公开(公告)号：US20240402010A1

公开(公告)日：2024-12-05

申请号：US18680690

申请日：2024-05-31

Applicant: Danbury Mission Technologies LLC ,  Research Foundation of the City University of New York

Inventor： Alexander J. Majewski ,  Andrea Alu ,  Adam C. Overvig ,  Shuwei Guo

IPC: G01J3/14 ,  G01J3/45 ,  G02B1/00

Abstract: Optical systems include a first optical element featuring a first substrate, a partially-reflective coating disposed on a first surface of the first substrate, a first meta-material layer positioned on or adjacent to a first surface of the first substrate and including a structure that defines a continuous phase gradient along a first direction parallel to the first surface of the first substrate, and a second optical element featuring a second substrate and a second meta-material layer positioned on or adjacent to a first surface of the second substrate and comprising a structure that defines a continuous phase gradient along a second direction parallel to the first surface of the first substrate, where at least one surface of the second optical element is curved along the second direction.

公开(公告)号：US20240272000A1

公开(公告)日：2024-08-15

申请号：US18441765

申请日：2024-02-14

Applicant: University of Central Florida Research Foundation, Inc.

Inventor： Stephen Eikenberry ,  Rodrigo Amezcua-Correa ,  Daniel Cruz-Delgado ,  Stephanos Yerolatsitis ,  Matthew Cooper ,  Miguel A. Bandres

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/14

CPC classification number: G01J3/2823 ,  G01J3/0218 ,  G01J3/14

Abstract: A sensor may include one or more photonic lanterns, each including a waveguide structure with a single input waveguide at an input end and two or more output waveguides at an output end, where the two or more output waveguides of each of the one or more photonic lanterns are optically decoupled. A distribution of intensities of light exiting two or more output waveguides of each of the one or more photonic lanterns may correspond to a modal decomposition of input light coupled into the input waveguide of the corresponding one of the one or more photonic lanterns. The sensor may further include one or more spectrometers coupled to the two or more output waveguides of the one or more photonic lanterns to provide a wavelength-resolved modal decomposition of the input light.

公开(公告)号：US20240180428A1

公开(公告)日：2024-06-06

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 ,  A61C1/00 ,  A61C19/04 ,  G01J3/02 ,  G01J3/10 ,  G01J3/12 ,  G01J3/14 ,  G01J3/18 ,  G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  G01M3/38 ,  G01N21/35 ,  G01N21/3504 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/85 ,  G01N21/88 ,  G01N21/95 ,  G01N33/02 ,  G01N33/15 ,  G01N33/44 ,  G01N33/49 ,  G16H40/67 ,  G16Z99/00 ,  H01S3/00 ,  H01S3/067 ,  H01S3/30

CPC classification number: A61B5/0088 ,  A61B5/0013 ,  A61B5/0022 ,  A61B5/0075 ,  A61B5/0086 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/1455 ,  A61B5/4547 ,  A61B5/6801 ,  A61B5/7203 ,  A61B5/7257 ,  A61B5/7405 ,  A61B5/742 ,  A61C19/04 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/108 ,  G01J3/14 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/42 ,  G01J3/453 ,  G01N21/35 ,  G01N21/3504 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/88 ,  G01N33/02 ,  G01N33/025 ,  G01N33/15 ,  G01N33/442 ,  G01N33/49 ,  G16H40/67 ,  G16Z99/00 ,  A61B5/0024 ,  A61B2562/0233 ,  A61B2562/0238 ,  A61B2562/146 ,  A61B2576/02 ,  A61C1/0046 ,  G01J2003/104 ,  G01J2003/1208 ,  G01J3/1838 ,  G01J2003/2826 ,  G01M3/38 ,  G01N2021/3513 ,  G01N2021/3595 ,  G01N2021/399 ,  G01N21/85 ,  G01N21/9508 ,  G01N2201/061 ,  G01N2201/06113 ,  G01N2201/062 ,  G01N2201/08 ,  G01N2201/12 ,  G01N2201/129 ,  H01S3/0092 ,  H01S3/06758 ,  H01S3/302 ,  Y02A90/10

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.

公开(公告)号：US11965779B2

公开(公告)日：2024-04-23

申请号：US17763957

申请日：2020-10-28

Applicant: TimeGate Instruments Oy

Inventor： Lauri Kurki ,  Ilkka Alasaarela ,  Jussi Tenhunen

IPC: G01J3/44 ,  G01J3/02 ,  G01J3/14 ,  G01J3/18 ,  G01J3/26

CPC classification number: G01J3/44 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0297 ,  G01J3/14 ,  G01J3/1895 ,  G01J3/26 ,  G01J2003/262

Abstract: An apparatus for measuring time-resolved optical spectrum includes a light source, a sensor for collecting, forming, manipulating and measuring the intensity of the optical radiation, and a controller coupled to the light source and sensor. The sensor includes at least one optical delay element to provide a time delay to a first portion of the optical radiation. The sensor arrangement further includes an optical spectral disperser to split the delayed first portion and the second portion of the optical radiation into dispersed radiation having a plurality of wavelengths, and a sensor element configured to receive each wavelength of the dispersed radiation on a different spatial region, and measure the light intensity associated with each wavelength of the dispersed radiation. The controller collects the light intensity associated with each wavelength of the dispersed radiation measured by the sensor element to form a time-resolved optical spectrum.

公开(公告)号：US11821791B1

公开(公告)日：2023-11-21

申请号：US17850201

申请日：2022-06-27

Applicant: VIAVI SOLUTIONS INC.

Inventor： Driss Touahri ,  Christopher Russell Wagner ,  Luis Andre Neves Paiva Fernandes ,  Joshua Benjamin Julius Philipson

IPC: G01J3/28 ,  G01J3/18 ,  G01J3/14 ,  G01J3/02 ,  G01J3/12

CPC classification number: G01J3/28 ,  G01J3/021 ,  G01J3/0208 ,  G01J3/14 ,  G01J3/18 ,  G01J2003/1208

Abstract: A monochromator apparatus for an optical spectrum analyzer may include a diffraction grating, a rotatable oblique prism reflector element with a non-right-angle apex angle, and a mirror. An input optical beam received from an input component may be diffracted by the grating element and reflected by a reflector element, where the reflector element may include a rotatable oblique prism with an apex angle that is different from a right angle. A mirror may reflect the reflected diffracted optical beam back to the reflector element and the grating element. An output optical beam from the grating element may be provided via an output element to a detection element for high resolution optical measurement. The oblique prism reflector element may reduce or eliminate a Littrow ghost effect or secondary ghost effects caused by the grating element.

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：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.