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.

公开(公告)号：US12216006B2

公开(公告)日：2025-02-04

申请号：US17729220

申请日：2022-04-26

Applicant: SHIMADZU CORPORATION

Inventor： Tadafumi Kamikake

IPC: G01J3/10 ,  G01J3/02 ,  G01J3/45 ,  G01J3/453 ,  G01N21/35

Abstract: An infrared light source device includes: a heater portion which emits infrared light by being heated; and a cover member arranged to cover an entire circumference of the heater portion without contacting the heater portion, and having a hole formed therein for emitting the infrared light from the heater portion to outside. A material for the cover member is a pure aluminum (an aluminum alloy with a purity of 99% or more), which has a high heat reflectivity and is less likely to be denatured by heat dissipation from the heater portion.

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.

公开(公告)号：US20240411116A1

公开(公告)日：2024-12-12

申请号：US18291822

申请日：2022-08-01

Applicant: Nippon Electric Glass Co., Ltd.

Inventor： Mitsuru TOMITA

IPC: G02B13/14 ,  G01J3/02 ,  G01J3/453 ,  G02B7/02 ,  G02B9/16 ,  G02B13/18

Abstract: Provided is a lens unit that has good resolution while sufficiently suppressing chromatic aberration, an optical system that includes the lens unit, and a spectral characteristic measurement device that includes the lens unit. A lens unit (1) includes a first lens (L1), a second lens (L2), and a third lens (L3) that are disposed in order, and is used for an infrared region that includes at least any one of wavelengths in a range of 7 μm to 14 μm. The effective diameter of the first lens (L1) is larger than the effective diameter of the third lens (L3), and the optical axis thickness of the third lens (L3) is greater than the optical axis thickness of any one of the first lens (L1) and the second lens (L2).

公开(公告)号：US12152878B2

公开(公告)日：2024-11-26

申请号：US18535364

申请日：2023-12-11

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 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：US20240337536A1

公开(公告)日：2024-10-10

申请号：US18413015

申请日：2024-01-15

Applicant: Shanghai Jiao Tong University

Inventor： Liangjun LU ,  Tianyu CHENG ,  Linjie ZHOU ,  Jianping CHEN ,  Jiao LIU

IPC: G01J3/45 ,  G01J3/453 ,  G02F1/21 ,  G02F1/225

CPC classification number: G01J3/45 ,  G02F1/212 ,  G02F1/2252 ,  G01J2003/4538

Abstract: An on-chip Fourier transform spectrometer based on a double-layer spiral waveguide comprises, in order, a waveguide input coupler, a 1×N optical splitter, N double-layer waveguide Y-branch structures, N double-layer spiral waveguides with incremental lengths, N double-layer waveguide Y-branch structures arranged in opposite directions, and N germanium-silicon detectors. The group index difference between the odd mode and the even mode in the double-layer waveguide makes the double-layer spiral waveguide function like an asymmetric Mach-Zehnder interferometer. N double-layer spiral waveguides with incremental lengths are used to achieve a spatial heterodyne based Fourier transform spectrometer. Spectral reconstruction from the measured interference fringes can be achieved by a regression algorithm. The invention meets the application need for miniaturization and portability of Fourier transform spectrometers, and has lower temperature sensitivity compared with the existing on-chip spectrometers on the silicon platform.

公开(公告)号：US20240319010A1

公开(公告)日：2024-09-26

申请号：US18186906

申请日：2023-03-20

Applicant: THERMO ELECTRON SCIENTIFIC INSTRUMENTS LLC

Inventor： John Iverson ,  Garry Ritter ,  Pete Knudtson ,  Eric Schwartz

IPC: G01J3/453 ,  G01J3/06

CPC classification number: G01J3/4535 ,  G01J3/06 ,  G01J2003/064 ,  G01J2003/4538

Abstract: Interfering internal beams can be used to generate an internal reference interferogram. This interferogram can be used to compensate for changes in FTIR instrument performance in response to variable environmental conditions or other instrument variations. Acquisition of such internal interferograms can be done during, after, or prior to acquisition of actual sample data.

公开(公告)号：US20240142307A1

公开(公告)日：2024-05-02

申请号：US18542051

申请日：2023-12-15

Applicant: Topcon Corporation

Inventor： Xiang WEI ,  Tony KO

IPC: G01J3/453 ,  G01J3/28

CPC classification number: G01J3/453 ,  G01J3/2823 ,  G01J2003/4538

Abstract: A full-range imaging method doubles imaging range of conventional techniques by removing mirror images of an imaged object that limit conventional images to a “half-range” and that are caused in part by the loss of phase information in a detected signal. Phase information of the detected signal is reconstructed with an averaging technique based on a modulated phase induced in the detected signal during scanning.

公开(公告)号：US20240130621A1

公开(公告)日：2024-04-25

申请号：US18386877

申请日：2023-11-02

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

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 ,  G01N2201/129 ,  H01S3/302

Abstract: A measurement system may comprise an actively illuminated camera system, in some embodiments coupled to a time-of-flight sensor or an array of laser diodes beam split into a plurality of spatially separated lights. The camera system may capture two or three dimensional images, and the light source may comprise semiconductor diodes, such as light emitting diodes. The system includes a processor coupled to non-transitory computer readable medium and configured to use artificial intelligence to make one or more decisions. The processing may also involve artificial intelligence or machine learning techniques to analyze anomalous occurrences, or generative artificial intelligence to interface with a user or improve the performance of camera-based systems. Algorithms may also be used to improve the performance of generative artificial intelligence processing. The camera output may be fused with data from other sensors, and the camera may also capture information about the pose or gestures of a user.

公开(公告)号：US11927483B2

公开(公告)日：2024-03-12

申请号：US17771517

申请日：2020-10-27

Applicant: Yokogawa Electric Corporation

Inventor： Yasuyuki Suzuki ,  Yukihiro Nakamura ,  Tetsushi Namatame

IPC: G01J3/453 ,  G01J3/02 ,  G01N21/27 ,  G01N21/45

CPC classification number: G01J3/453 ,  G01J3/0208 ,  G01J3/027 ,  G01N21/274 ,  G01N21/45 ,  G01N2021/458

Abstract: A Fourier spectrophotometer includes: a light source; an interferometer configured to obtain first and second interferograms whose intensity distributions are inverted from each other from the light emitted from light source; a multiplexing optical system configured to multiplex the first and second interferograms to irradiate the sample with a resultant interferogram; a demultiplexing optical system configured to demultiplex the first and second interferograms contained in the light passing through the sample; a light receiver configured to output a first light reception signal obtained by receiving the demultiplexed first interferogram and a second light reception signal obtained by receiving the demultiplexed second interferogram; and a signal processing device configured to perform processing for obtaining a noise-removed spectrum of the wavelength component in the analysis wavelength band by using the first and second light reception signals.