公开(公告)号：US12226188B2

公开(公告)日：2025-02-18

申请号：US18118013

申请日：2023-03-06

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 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：US20250049326A1

公开(公告)日：2025-02-13

申请号：US18927698

申请日：2024-10-25

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

Abstract: A wearable device to measure a user's physiological parameters comprising one or more biosensors, as well as a light source comprising light emitting diodes, lenses for directing light towards tissue of the user comprising blood vessels, and a detection system receiving reflected tissue light. The physiological parameters, for example hypertension, are measured with a differential measurement. For example, the physiological parameters may be associated with pulse rate and blood flow. The output signal is associated with the physiological parameters, and artificial intelligence may be used in making decisions regarding the output signal. Signal-to-noise ratio of the output signal may be improved by synchronizing the detection system to the light source, increasing light intensity, and detecting a change. The wearable device is configured to determine that is being worn by the user and may be configured to communicate with a smartphone or tablet.

公开(公告)号：US20250009232A1

公开(公告)日：2025-01-09

申请号：US18891125

申请日：2024-09-20

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

Abstract: A remote sensing system comprising laser diodes with Bragg reflectors generating pulsed light that is directed to an object. A detection system receiving some of the light reflected from the object and coupled to a processor configured to measure a time-of-flight. The pulsing may have a phase associated with the modulation frequency, or nanosecond pulses may be used for the measurement. The remote sensing system including the processor is further configured to provide time and position data for a user. The object may comprise the user capable of laying on a supporting surface. The remote sensing system may also be coupled to a camera system to capture images, which may be combined with the time-of-flight measurement. Artificial intelligence may be used to make decisions associated with the images or the time-of-flight measurement. The processor may be coupled to non-transitory computer readable medium and may communicate data to a cloud server.

公开(公告)号：US20240398237A1

公开(公告)日：2024-12-05

申请号：US18802879

申请日：2024-08-13

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

Abstract: A measurement system with active illumination using pulsed semiconductor diodes and a detection system comprising a camera imager with lenses and spectral filters that is synchronized to the pulsed diodes. The light generated by the diodes may comprise visible or near-infrared wavelengths. The measurement system may also comprise a time-of-flight sensor or a beam splitter to separate the diode light into a plurality of spatially separated lights. The detection system may be configured to receive light reflected from tissue comprising skin and may be configured to perform a differential measurement between a hand and another region of tissue. The measurement system including a processor may be configured to identify veins in the hand or measure oxygen level in blood. The system may be used to identify an object or to measure physiological parameters. The system may also be coupled to a cloud service and use artificial intelligence in making decisions.

公开(公告)号：US11977026B2

公开(公告)日：2024-05-07

申请号：US17781259

申请日：2019-12-27

Applicant: Hitachi High-Tech Corporation

Inventor： Mizuki Mohara ,  Kei Shimura ,  Kenji Aiko

IPC: G01N21/3581 ,  G01J3/10 ,  G01J3/14 ,  G01J3/28 ,  G02F1/355

CPC classification number: G01N21/3581 ,  G01J3/108 ,  G01J3/14 ,  G01J3/2803 ,  G02F1/3551

Abstract: This invention addresses the abovementioned problem, and the purpose of this invention is to provide a far-infrared spectroscopy device that uses an is-TPG method to generate far-infrared light, and is capable of efficiently detecting is-TPG light without a detection optical system being fine-tuned. Even if the far-infrared light incidence angles on an Si prism for detection are the same when far-infrared light having a first frequency is incident on a non-linear optical crystal for detection and when far-infrared light having a second frequency is incident on the non-linear optical crystal for detection, this far-infrared spectroscopy device adjusts the incidence surface angle of pump light in relation to the non-linear optical crystal for detection such that the angle of the far-infrared light in relation to the pump light within the non-linear optical crystal for detection can be appropriately set for each far-infrared light frequency (see FIG. 1A).

公开(公告)号：US11898908B2

公开(公告)日：2024-02-13

申请号：US17979908

申请日：2022-11-03

Applicant: JASCO CORPORATION

Inventor： Masateru Usuki ,  Yoshiko Kubo ,  Daisuke Dogomi ,  Kento Aizawa ,  Tsutomu Inoue

IPC: G01J3/44 ,  G01J3/02 ,  G01N21/552 ,  G01J3/14

CPC classification number: G01J3/0208 ,  G01J3/14 ,  G01J3/4412 ,  G01N21/552

Abstract: An Attenuated total reflection measuring apparatus capable of Raman spectral measurement has an infrared optical instrument and a Raman module. The infrared optical instrument is disposed on an ATR prism side of a sample, and is provided to irradiate the ATR prism with an infrared light, and collect the infrared light from the ATR prism. The Raman module is disposed on a side opposite to the ATR prism side relative to the sample, and has a guide tube that outputs an excitation light from an excitation light source to the sample, and a lens portion disposed inside thereof. An end of the guide tube is in a position to push the sample to the ATR prism. The Raman module has a lens position adjustment mechanism that moves the lens portion along an optical axis, and a spectroscope that detects a Raman scattering light collected by the lens portion.

公开(公告)号：US11879731B2

公开(公告)日：2024-01-23

申请号：US17943474

申请日：2022-09-13

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

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

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：US20230314795A1

公开(公告)日：2023-10-05

申请号：US17760583

申请日：2020-12-19

Applicant: SOOCHOW UNIVERSITY

Inventor： Jian BAO ,  Qiuyang SHEN ,  Xinhua CHEN ,  Weimin SHEN

IPC: G02B27/00 ,  G01J3/14 ,  G01J3/18 ,  G01J3/28

CPC classification number: G02B27/0012 ,  G01J3/14 ,  G01J3/18 ,  G01J3/2823 ,  G01J2003/1208

Abstract: The invention discloses a design method of a wavenumber linearity dispersion optical system and an imaging spectrometer, including: building an optical system including a grating, a prism and an objective lens that are sequentially arranged, the grating adjoins the prism; defining a linearity evaluation coefficient RMS; assigning a minimum value to the linearity evaluation coefficient RMS through adjustment to the vertex angle of the prism, when the linearity evaluation coefficient RMS is at minimum, the vertex angle of the prism being α1; acquiring compensations for distortion and longitudinal chromatic aberration of the objective lens based on the interval between equal-difference wavenumbers on the image plane when the vertex angle of the prism is α1; and optimizing the objective lens based on the compensations for distortion and longitudinal chromatic aberration of the objective lens to obtain an optimized optical system. Higher wavenumber linearity can be achieved through objective-lens-aberration compensated wavenumber linearity.

公开(公告)号：US20230221180A1

公开(公告)日：2023-07-13

申请号：US17819892

申请日：2022-08-15

Applicant: University of Hawaii

Inventor： Paul Lucey

IPC: G01J3/26 ,  G01J3/453 ,  G01J3/14

CPC classification number: G01J3/26 ,  G01J3/4531 ,  G01J3/14

Abstract: A spatial Fourier transform spectrometer is disclosed. The Fourier transform spectrometer includes a Fabry-Perot interferometer with first and second optical surfaces. The gap between the first and second optical surfaces spatially varies in a direction that is orthogonal to the optical axis of the Fourier transform spectrometer. The Fabry-Perot interferometer creates an interference pattern from input light. An image of the interference pattern is captured by a detector, which is communicatively coupled to a processor. The processor is configured to process the interference pattern image to determine information about the spectral content of the input light.

公开(公告)号：US11678805B2

公开(公告)日：2023-06-20

申请号：US17832340

申请日：2022-06-03

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

CPC classification number: A61B5/0088 ,  A61B5/0013 ,  A61B5/0022 ,  A61B5/0075 ,  A61B5/0086 ,  A61B5/1455 ,  A61B5/14532 ,  A61B5/14546 ,  A61B5/4547 ,  A61B5/6801 ,  A61B5/7203 ,  A61B5/7257 ,  A61B5/742 ,  A61B5/7405 ,  A61C19/04 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/108 ,  G01J3/14 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/42 ,  G01J3/453 ,  G01N21/35 ,  G01N21/3504 ,  G01N21/359 ,  G01N21/3563 ,  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 ,  G01J3/1838 ,  G01J2003/104 ,  G01J2003/1208 ,  G01J2003/2826 ,  G01M3/38 ,  G01N21/85 ,  G01N21/9508 ,  G01N2021/3513 ,  G01N2021/3595 ,  G01N2021/399 ,  G01N2201/061 ,  G01N2201/062 ,  G01N2201/06113 ,  G01N2201/08 ,  G01N2201/12 ,  G01N2201/129 ,  H01S3/0092 ,  H01S3/06758 ,  H01S3/302 ,  Y02A90/10

Abstract: An active remote sensing system is provided with an array of laser diodes that generate light directed to an object having one or more optical wavelengths that include at least one near-infrared wavelength between 700 nanometers and 2500 nanometers. One of the laser diodes pulses with pulse duration of approximately 0.5 to 2 nanoseconds at repetition rate between one kilohertz and about 100 megahertz. A beam splitter receives the laser light, separates the light into a plurality of spatially separated lights and directs the lights to the object. A detection system includes a photodiode array synchronized to the array of laser diodes and performs a time-of-flight measurement by measuring a temporal distribution of photons received from the object. The time-of-flight measurement is combined with images from a camera system, and the remote sensing system is configured to be coupled to a wearable device, a smart phone or a tablet.