公开(公告)号：US20230172455A1

公开(公告)日：2023-06-08

申请号：US18103408

申请日：2023-01-30

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: An optical system operating in the near or short-wave infrared wavelength range identifies an object based on water absorption. The system comprises a light source with modulated light emitting diodes operating at wavelengths near 1090 and 1440 nanometers, corresponding to lower and higher water absorption. The system further comprises one or more wavelength selective filters and a housing that is further coupled to an electrical circuit and a processor. The detection system comprises photodetectors that are synchronized to the light source, and the detection system receives at least a portion of light reflected from the object. The system is configured to identify the object by comparing the reflected light at the first and second wavelength to generate an output value, and then comparing the output value to a threshold. The optical system may be further coupled to a wearable device or a remote sensing system with a time-of-flight sensor.

公开(公告)号：US11650101B2

公开(公告)日：2023-05-16

申请号：US18063217

申请日：2022-12-08

Applicant: IRsweep AG

Inventor： Stéphane Schilt ,  Pierre Brochard ,  Kenichi Komagata ,  Giulio Terrasanta ,  Andreas Hugi

IPC: H01S5/40 ,  H01S5/062 ,  G01J3/433 ,  G01J3/10 ,  G01J3/42

CPC classification number: G01J3/433 ,  H01S5/0623 ,  H01S5/4006 ,  G01J2003/102 ,  G01J2003/423 ,  G01J2003/4332

Abstract: A dual-comb spectrometer comprising two lasers outputting respective frequency combs having a frequency offset between their intermode beat frequencies. One laser acts as a master and the other as a follower. Although the master laser is driven nominally with a DC drive signal, the current on its drive input line nevertheless oscillates with an AC component that follows the beating of the intermode comb lines lasing in the driven master laser. This effect is exploited by tapping off this AC component and mixing it with a reference frequency to provide the required frequency offset, the mixed signal then being supplied to the follower laser as the AC component of its drive signal. The respective frequency combs in the optical domain are thus phase-locked relative to each other in one degree of freedom, so that the electrical signals obtained by multi-heterodyning the two optical signals are frequency stabilized.

公开(公告)号：US11629946B2

公开(公告)日：2023-04-18

申请号：US16625684

申请日：2018-07-06

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tomofumi Suzuki ,  Kyosuke Kotani ,  Tatsuya Sugimoto ,  Yutaka Kuramoto ,  Katsumi Shibayama ,  Noburo Hosokawa ,  Hirokazu Yamamoto ,  Takuo Koyama

IPC: G02B9/02 ,  G01B9/02 ,  B81B3/00 ,  G01J3/02 ,  G01J3/10 ,  G01J3/14 ,  G01J3/45 ,  G02B7/182 ,  G02B26/08 ,  G02B27/14 ,  G01J3/453

Abstract: A mirror unit 2 includes a mirror device 20 including a base 21 and a movable mirror 22, an optical function member 13, and a fixed mirror 16 that is disposed on a side opposite to the mirror device 20 with respect to the optical function member 13. The mirror device 20 is provided with a light passage portion 24 that constitutes a first portion of an optical path between the beam splitter unit 3 and the fixed mirror 16. The optical function member 13 is provided with a light transmitting portion 14 that constitutes a second portion of the optical path between the beam splitter unit 3 and the fixed mirror 16. A second surface 21b of the base 21 and a third surface 13a of the optical function member 13 are joined to each other.

公开(公告)号：US11624605B2

公开(公告)日：2023-04-11

申请号：US16625696

申请日：2018-07-06

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Tomofumi Suzuki ,  Kyosuke Kotani ,  Tatsuya Sugimoto ,  Yutaka Kuramoto ,  Katsumi Shibayama ,  Noburo Hosokawa ,  Hirokazu Yamamoto ,  Takuo Koyama

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

Abstract: A mirror unit 2 includes a mirror device 20 including a base 21 and a movable mirror 22, an optical function member 13, and a fixed mirror 16 that is disposed on a side opposite to the mirror device 20 with respect to the optical function member 13. The optical function member 13 is provided with a light transmitting portion 14 that constitutes a part of an optical path between the beam splitter unit 3 and the fixed mirror 16. The light transmitting portion 14 is a portion that corrects an optical path difference that occurs between an optical path between the beam splitter unit 3 and the movable mirror 22 and the optical path between the beam splitter unit 3 and the fixed mirror 16. The second surface 21b of the base 21 and the third surface 13a of the optical function member 13 are joined to each other.

公开(公告)号：US11619579B2

公开(公告)日：2023-04-04

申请号：US17387381

申请日：2021-07-28

Applicant: CANON KABUSHIKI KAISHA

Inventor： Makoto Kawaguchi

IPC: G01N21/35 ,  G01N21/3563 ,  B07C5/342 ,  G01J3/10 ,  G01N21/65

Abstract: An identification apparatus includes a plurality of irradiation units disposed at different positions in a conveyance width direction to irradiate a specimen with a converging ray in different irradiation conditions, the specimen being conveyed in a predetermined conveyance direction by a conveyance unit, a plurality of light-capturing units configured to capture scattered light from the specimen, each of the plurality of light-capturing units corresponding to a different one of the plurality of irradiation units, an acquisition unit configured to acquire identification information for identifying a property of the specimen, based on the light captured by the light-capturing units; and a placement unit configured to place the specimen on a position corresponding to any one of the plurality of irradiation units in accordance with a characteristic value of the specimen at an upstream side of the plurality of irradiation units in the conveyance direction.

公开(公告)号：US20230086020A1

公开(公告)日：2023-03-23

申请号：US17909339

申请日：2020-03-20

Applicant: Gecko Analysentechnik GmbH

Inventor： Matthias EBLE ,  Michael WEISE ,  Stefan SEEGER

IPC: G02F1/01 ,  G02F1/19 ,  G02B1/11 ,  G01J3/02 ,  G01J3/10 ,  G01J3/42

Abstract: The present invention relates to a device and a method for limiting the output of a laser, wherein a reflecting device arranged in the optical path of a laser beam comprises a switching layer which comprises or consists of a material exhibiting a metal-insulator transition and a reflecting layer which is positioned downstream of the switching layer in the optical path of the laser beam, wherein the reflecting device is configured such that an output of the laser beam when it is incident upon the reflecting device which exceeds a predefined threshold causes a change in the refractive index of the material in the switching layer, and the output of the laser beam reflected by the reflecting device is thus reduced as compared to the output of the laser beam when it is incident upon the reflecting device due to reduced reflection by the reflecting device.

公开(公告)号：US20230055025A1

公开(公告)日：2023-02-23

申请号：US18048772

申请日：2022-10-21

Applicant: Phoseon Technology, Inc.

Inventor： Lowell Brunson ,  John Christopher Freitag ,  Theresa Thompson

IPC: G01J3/42 ,  G01J3/28 ,  G01J3/10 ,  G02B27/10 ,  G02B27/14 ,  G02B5/28 ,  G02B19/00 ,  G01J3/44 ,  G01J3/02 ,  G01N21/27 ,  G01N30/74 ,  G01N21/64

Abstract: Systems and methods are provided for a UV-VIS spectrophotometer, such as a UV-VIS detector unit included in a high-performance liquid chromatography system. In one example, a system for the UV-VIS detector unit may include a first light source, a signal detector, a flow path positioned intermediate the first light source and the signal detector, a second light source, and a reference detector. The first light source, the signal detector, and the flow path may be aligned along a first axis, and the second light source and the reference detector may be aligned along a second axis, different than the first axis.

公开(公告)号：US11574412B2

公开(公告)日：2023-02-07

申请号：US16234311

申请日：2018-12-27

Applicant: Cilag GmbH International

Inventor： Joshua D. Talbert ,  Donald M. Wichern

IPC: G06T7/521 ,  A61B1/045 ,  A61B1/05 ,  A61B1/00 ,  A61B1/06 ,  G02B23/24 ,  H04N13/239 ,  H04N5/353 ,  H04N9/04 ,  H04N5/225 ,  G01J3/02 ,  G01J3/10 ,  G01J3/28 ,  H04N9/09 ,  A61B1/04 ,  H04N5/235 ,  H04N5/265 ,  H04N5/272

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：US11564577B2

公开(公告)日：2023-01-31

申请号：US17514778

申请日：2021-10-29

Applicant: OMNI MEDSCI, INC.

Inventor： Mohammed N. Islam

IPC: G01J3/00 ,  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 ,  H01S3/30 ,  G01J3/18 ,  G01J3/12 ,  G01N21/85 ,  G01N21/95 ,  H01S3/067 ,  H01S3/00 ,  G01M3/38 ,  A61C1/00

Abstract: An optical system measures one or more physiological parameters with a wearable device that includes a light emitting diode (LED) source including a driver and a plurality of semiconductor sources that generate an output optical light. One or more lenses deliver a lens output light to tissue of a user. A detection system receives at least a portion of the lens output light reflected from the tissue and generates an output signal having a signal-to-noise ratio. The detection system comprises a plurality of spatially separated detectors and an analog to digital converter. The detection system increases the signal-to-noised ratio by comparing a first signal with the LEDs off to a second signal with the LEDs on. An imaging system including a Bragg reflector is pulsed and has a near infrared wavelength. A beam splitter splits the light into a sample arm and a reference arm to measure time-of-flight.

公开(公告)号：US11562992B2

公开(公告)日：2023-01-24

申请号：US17155258

申请日：2021-01-22

Applicant: PixArt Imaging Inc.

Inventor： Chee-Pin T'Ng ,  Sai-Mun Lee

IPC: H01L25/16 ,  G01J1/02 ,  G01S7/481 ,  H01L25/00 ,  G01J3/02 ,  G01J3/10 ,  G01S17/04

Abstract: There is provided an image module package including a substrate, a photo sensor chip, a molded transparent layer and a glass filter. The substrate has an upper surface. The photo sensor chip is attached to the upper surface of the substrate and electrically connected to the substrate. The molded transparent layer covers the photo sensor chip and a part of the upper surface of the substrate, wherein a top surface of the molded transparent layer is formed with a receptacle opposite to the photo sensor chip. The glass filter is accommodated in the receptacle.