公开(公告)号：US11874229B2

公开(公告)日：2024-01-16

申请号：US17715862

申请日：2022-04-07

Applicant: Onto Innovation Inc.

Inventor： George Andrew Antonelli

IPC: G01N21/65 ,  G01J3/44 ,  G01J3/02 ,  G01J3/18 ,  G02B27/14 ,  G01J3/10

CPC classification number: G01N21/65 ,  G01J3/0208 ,  G01J3/0224 ,  G01J3/10 ,  G01J3/18 ,  G01J3/4412 ,  G02B27/141

Abstract: An optical metrology device performs multi-wavelength polarized confocal Raman spectroscopy. The optical metrology device uses a first light source to produce a first light beam with a first wavelength and a second light source to produce a second light beam with a second wavelength. A dichroic beam splitter partially reflects the first light beam and transmits the second light beam to combine the light beams along a same optical axis that is incident on a sample. The dichroic beam splitter directs the Raman response emitted from the sample in response to the first light beam and the second light beam together towards at least one spectrometer and directs the first light beam away from the at least one spectrometer. A chopper may be used to isolate the Raman response to the first and second light beams that is received and spectrally measured by the at least one spectrometer.

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：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.

公开(公告)号：US20190200904A1

公开(公告)日：2019-07-04

申请号：US16312080

申请日：2018-05-22

Applicant: Rijul GUPTA

Inventor： Rijul GUPTA

IPC: A61B5/1455 ,  A61B5/00 ,  A61B5/145 ,  G01J3/427 ,  G01J3/457 ,  G01J3/10 ,  G01J3/02

CPC classification number: A61B5/1455 ,  A61B5/0059 ,  A61B5/0075 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/6826 ,  A61B5/7267 ,  A61B5/7475 ,  G01J3/00 ,  G01J3/0262 ,  G01J3/10 ,  G01J3/28 ,  G01J3/427 ,  G01J3/457 ,  G01J2003/102 ,  G01N21/31 ,  G01N21/474 ,  G01N21/49 ,  G01N2021/3155 ,  G01N2021/3181

Abstract: A multi-channel measurement device for measuring properties of human tissue, may comprise a microcontroller and first and second source/sensor complexes. The first source/sensor complex may include a first housing having a first measurement portion, a first light sensor coupled to the microcontroller and exposed to the first measurement portion, and a first plurality of light sources coupled to the microcontroller and exposed to the first measurement portion. The second source/sensor complex may include a second housing having a second measurement portion, a second light sensor coupled to the microcontroller and exposed to the second measurement portion, and a second plurality of light sources coupled to the microcontroller and exposed to the second measurement portion. The first and second source/sensor complexes are coupled to each other such that the first measurement portion is opposite the second measurement portion and human tissue may be placed between the the first and second measurement portions. The microprocessor is configured with instructions stored in non-volatile memory to individually activate each of the light sources of the first and second pluralities of light sources and to record light intensity detected by the first and second light sources while an individual light source is activated. Each combination of an individually activated light source and one of the first and second light sensors provides a distinct measurement channel for measuring the absorption spectra of human blood and tissue.

公开(公告)号：US20190197712A1

公开(公告)日：2019-06-27

申请号：US16234311

申请日：2018-12-27

Applicant: Ethicon LLC

Inventor： Joshua D. Talbert ,  Donald M. Wichern

IPC: G06T7/521 ,  A61B1/045 ,  A61B1/05 ,  A61B1/00 ,  A61B1/06 ,  H04N13/239 ,  G02B23/24

CPC classification number: G06T7/521 ,  A61B1/0005 ,  A61B1/00066 ,  A61B1/00096 ,  A61B1/00186 ,  A61B1/00193 ,  A61B1/043 ,  A61B1/045 ,  A61B1/05 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/0653 ,  A61B1/0661 ,  G01J3/027 ,  G01J3/10 ,  G01J3/2803 ,  G01J3/2823 ,  G01J2003/2826 ,  G02B23/2461 ,  G02B23/2484 ,  G06T2207/10024 ,  G06T2207/10028 ,  G06T2207/10068 ,  G06T2207/30004 ,  H04N5/2256 ,  H04N5/2354 ,  H04N5/2355 ,  H04N5/265 ,  H04N5/272 ,  H04N9/0451 ,  H04N9/09 ,  H04N13/239 ,  H04N2005/2255

Abstract: An endoscopic imaging system for use in a light deficient environment includes an imaging device having a tube, one or more image sensors, and a lens assembly including at least one optical elements that corresponds to the one or more image sensors. The endoscopic system includes a display for a user to visualize a scene and an image signal processing controller. The endoscopic system includes a light engine having an illumination source generating one or more pulses of electromagnetic radiation and a lumen transmitting one or more pulses of electromagnetic radiation to a distal tip of an endoscope.

公开(公告)号：US20190195802A1

公开(公告)日：2019-06-27

申请号：US16325632

申请日：2017-08-30

Applicant: OUTSENSE DIAGNOSTICS LTD.

Inventor： Ishay Attar ,  Yaara Kapp-Barnea

IPC: G01N21/64 ,  A61B10/00 ,  G01N33/493

CPC classification number: G01N21/6486 ,  A61B10/0038 ,  A61B10/007 ,  A61B2010/0006 ,  E03D11/13 ,  G01J3/10 ,  G01J3/2803 ,  G01J3/42 ,  G01J5/0806 ,  G01J5/0809 ,  G01J5/10 ,  G01J2003/104 ,  G01N21/31 ,  G01N21/645 ,  G01N33/493 ,  G01N33/57419 ,  G01N2021/6421

Abstract: Apparatus and methods are described for use with feces of a subject that is disposed within a toilet bowl (23), and an output device (32). One or more light sensors (60, 62, 64, 66) receive light from the toilet bowl, while the feces are disposed within the toilet bowl. A computer processor (44) analyzes the received light, and, in response thereto, determines that there is a presence of blood within the feces, and determines a source of the blood from within the subject's gastrointestinal tract. The computer processor (44) generates an output on the output device (32), at least partially in response thereto. Other applications are also described.

公开(公告)号：US20190195688A1

公开(公告)日：2019-06-27

申请号：US16229355

申请日：2018-12-21

Applicant: Amir H. Atabaki ,  Rajeev J. RAM ,  William F. Herrington

Inventor： Amir H. Atabaki ,  Rajeev J. RAM ,  William F. Herrington

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/28 ,  G01J3/44 ,  G01N21/65 ,  G01J3/18

CPC classification number: G01J3/0229 ,  G01J3/10 ,  G01J3/18 ,  G01J3/2803 ,  G01J3/44 ,  G01N21/65 ,  G01N2201/06113 ,  G01N2201/0635 ,  G01N2201/0638

Abstract: In swept source Raman (SSR) spectroscopy, a swept laser beam illuminates a sample, which inelastically scatters some of the incident light. This inelastically scattered light is shifted in wavelength by an amount called the Raman shift. The Raman-shifted light can be measured with a fixed spectrally selective filter and a detector. The Raman spectrum can be obtained by sweeping the wavelength of the excitation source and, therefore, the Raman shift. The resolution of the Raman spectrum is determined by the filter bandwidth and the frequency resolution of the swept source. An SSR spectrometer can be smaller, more sensitive, and less expensive than a conventional Raman spectrometer because it uses a tunable laser and a fixed filter instead of free-space propagation for spectral separation. Its sensitivity depends on the size of the collection optics. And it can use a nonlinearly swept laser beam thanks to a wavemeter that measures the beam's absolute wavelength during Raman spectrum acquisition.

公开(公告)号：US20190191977A1

公开(公告)日：2019-06-27

申请号：US16234360

申请日：2018-12-27

Applicant: Ethicon LLC

Inventor： Joshua D. Talbert ,  Donald M. Wichern

IPC: A61B1/04 ,  H04N5/225 ,  H04N5/272 ,  A61B1/06 ,  A61B1/00

CPC classification number: G06T7/521 ,  A61B1/0005 ,  A61B1/00066 ,  A61B1/00096 ,  A61B1/00186 ,  A61B1/00193 ,  A61B1/043 ,  A61B1/045 ,  A61B1/05 ,  A61B1/0638 ,  A61B1/0646 ,  A61B1/0653 ,  A61B1/0661 ,  G01J3/027 ,  G01J3/10 ,  G01J3/2803 ,  G01J3/2823 ,  G01J2003/2826 ,  G02B23/2461 ,  G02B23/2484 ,  G06T2207/10024 ,  G06T2207/10028 ,  G06T2207/10068 ,  G06T2207/30004 ,  H04N5/2256 ,  H04N5/2354 ,  H04N5/2355 ,  H04N5/265 ,  H04N5/272 ,  H04N9/0451 ,  H04N9/09 ,  H04N13/239 ,  H04N2005/2255

Abstract: An endoscopic imaging system for use in a light deficient environment includes an imaging device having a tube, one or more image sensors, and a lens assembly including at least one optical elements that corresponds to the one or more image sensors. The endoscopic system includes a display for a user to visualize a scene and an image signal processing controller. The endoscopic system includes a light engine having an illumination source generating one or more pulses of electromagnetic radiation and a lumen transmitting one or more pulses of electromagnetic radiation to a distal tip of an endoscope.