公开(公告)号：US20230121436A1

公开(公告)日：2023-04-20

申请号：US18085685

申请日：2022-12-21

Applicant: OUTSENSE DIAGNOSTICS LTD.

Inventor： Ishay Attar ,  Yaara Kapp-Barnea

IPC: G01N21/64 ,  A61B10/00 ,  G01J3/10 ,  G01N21/31 ,  G01J3/28 ,  G01J5/10 ,  G01J5/0806 ,  G01J5/0808 ,  G01N33/493

Abstract: Apparatus and methods are described for use with feces of a subject that are disposed within a toilet bowl. One or more light sensors receive light from the toilet bowl, while the feces are disposed within the toilet bowl. A computer processor detects a set of three or more spectral components that have a characteristic relationship with each other in a light spectrum of bile, by analyzing the received light, and detects a presence of bile within the feces, in response to detecting the set of three or more spectral components. The computer processor generates an output in response thereto. Other applications are also described.

公开(公告)号：US11624652B2

公开(公告)日：2023-04-11

申请号：US17397328

申请日：2021-08-09

Applicant: B. G. NEGEV TECHNOLOGIES AND APPLICATIONS LTD., AT BEN-GURION UNIVERSITY

Inventor： Ohad Ben-Shahar ,  Boaz Arad

IPC: G01J3/28 ,  G06T7/90 ,  G03B33/16 ,  G06V10/40 ,  G06V10/58 ,  H04N9/04

Abstract: A method for approximating spectral data, the method comprising using at least one hardware processor for: providing a digital image comprising data in a first set of spectral bands; providing a dictionary comprising (a) signatures in a second set of spectral bands and (b) values in said first set of spectral bands, wherein said values correspond to the signatures, and wherein said first and second sets of spectral bands are different; and approximating, based on the dictionary, data in said second set of spectral bands of said digital image.

公开(公告)号：US11614617B2

公开(公告)日：2023-03-28

申请号：US17235096

申请日：2021-04-20

Applicant: Tsinghua University ,  HON HAI PRECISION INDUSTRY CO., LTD.

Inventor： Ben-Qi Zhang ,  Jun Zhu ,  Yi-Lin Tan ,  Guo-Fan Jin ,  Shou-Shan Fan

IPC: G02B5/18 ,  G02B27/00 ,  G01J3/18 ,  G01J3/28

Abstract: A method for designing a freeform concave grating imaging spectrometer includes selecting a series of light rays incident from different positions of a slit as characteristic light rays. The coordinates and normal directions of characteristic data points at intersections of the characteristic light rays and a surface of a freeform concave grating are calculated. A freeform surface shape of the freeform concave grating is obtained by fitting, so that an initial structure is obtained. Then the initial structure is optimized.

公开(公告)号：US11614361B1

公开(公告)日：2023-03-28

申请号：US17561441

申请日：2021-12-23

Applicant: Optiz, Inc.

Inventor： Rob Heeman ,  Edwin Wolterink

IPC: G01J3/04 ,  G01J3/28 ,  G01J3/02 ,  G01J3/18

Abstract: A camera includes a first lens configured to focus incoming light onto a reflective slit assembly. The reflective slit assembly comprises an elongated strip of reflective material configured to reflect some but not all of the incoming light as return light. The first lens is configured to at least partially collimate the return light from the elongated strip of reflective material. A first mirror is configured to reflect the return light from the first lens. A second mirror is configured to reflect the return light from the first mirror. An optical element is configured to separate the return light from the first mirror as a function of wavelength. A second lens is configured to focus the return light from the optical element onto a first detector. The first detector is configured to measure intensities of the return light as a function of two dimensional position on the first detector.

公开(公告)号：US20230085600A1

公开(公告)日：2023-03-16

申请号：US17931489

申请日：2022-09-12

Applicant: Arizona Board of Regents on Behalf of the University of Arizona

Inventor： Richard John Koshel ,  Travis Sawyer ,  Justina Bonaventura ,  Thomas Graham Knapp

IPC: G01J3/02 ,  G01J3/28 ,  G06V10/77 ,  G06V10/764

Abstract: A self-calibrating spectrometer that captures a sample spectrum image of a sample via a light dispersion device and a calibration spectrum image of a calibration light source having a known spectrum (e.g., in the same image frame using a bifurcated fiber optic cable). Spectral data is extracted from the sample spectrum image and wavelength calibrated by matching calibration spectral data extracted from the calibration spectrum image to the known spectrum of the calibration light source, mapping each pixel position of the calibration spectrum image to a wavelength of the known spectrum of the calibration light source, and mapping each pixel position of the sample spectral data to a wavelength based on the pixel position-to-wavelength mapping. In some embodiments, extracted features from the wavelength calibrated spectral data are used by classification module, trained on a dataset of features extracted from spectral data of known samples, to classify the sample.

公开(公告)号：US11606507B1

公开(公告)日：2023-03-14

申请号：US17005735

申请日：2020-08-28

Applicant: X Development LLC

Inventor： Allen Richard Zhao ,  Jerome Nowak ,  Benoit Schillings

IPC: G01J3/28 ,  H04N5/235 ,  G02B3/14 ,  G02B7/28 ,  G02F1/29

Abstract: A system and method for automated lens adjustment for hyperspectral imaging is described. The system includes an image sensor and an electrically-controllable element arranged to set a spectral band for image capture by (i) selectively providing light for a selected spectral band or (ii) selectively filtering light to a selected spectral band. The system includes a tunable lens that is adjustable to change a focal length of the lens; and one or more data storage devices storing data that indicates different focus adjustment parameters corresponding to different spectral bands. The system includes a control system configured to perform operations including: selecting a spectral band; controlling the electrically-controllable element to set the spectral band for image capture; retrieving the focus adjustment parameter that corresponds to the spectral band; adjusting the lens based on the retrieved focus adjustment parameter; and capturing an image of the subject while the lens remains adjusted.

公开(公告)号：US11604093B2

公开(公告)日：2023-03-14

申请号：US17262892

申请日：2019-07-09

Applicant: Robert Bosch GmbH

Inventor： Martin Husnik ,  Christian Huber ,  Reinhold Roedel ,  Benedikt Stein ,  Christoph Schelling

IPC: G01J3/26 ,  G01J3/02 ,  G01J3/28

Abstract: A spectrometer device includes a Fabry-Perot interferometer unit, which comprises a first carrier substrate, wherein the first carrier substrate is arranged on a lower side of the Fabry-Perot interferometer unit and includes an optical aperture. The spectrometer includes at least one of a first substrate, which is arranged on an upper side of the Fabry-Perot interferometer unit, which faces away from the lower side, and a second substrate with the first carrier substrate arranged with the lower side on the second substrate. The spectrometer further includes a photodetector device arranged on or in the at least one of the second substrate and the first substrate. A first electrical connection region of the photodetector device and a second electrical connection region of the Fabry-Perot interferometer unit are electrically contacted from the same direction.

公开(公告)号：US20230069927A1

公开(公告)日：2023-03-09

申请号：US18048458

申请日：2022-10-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MOTOKI YAKO ,  ATSUSHI ISHIKAWA ,  KAZUYA HISADA

IPC: G01J3/28 ,  G02B5/20

Abstract: A filter array includes filters disposed in a two-dimensional plane and having different transmission spectra. The filters include a first filter with a transmission spectrum having a first peak group including first and second peaks adjacent to each other, and at least one second filter with a transmission spectrum having a second peak group including third and fourth peaks adjacent to each other. Of peaks included in the second peak group, the third peak has a wavelength closest to a wavelength at the first peak. A first interval between the wavelength at the first peak and a wavelength at the second peak is different from a second interval between the wavelength at the third peak and a wavelength at the fourth peak. ΔFSR/σ≥0.25, where ΔFSR denotes an absolute value of a difference between the first and second intervals and σ denotes a half-width of the first peak.

公开(公告)号：US11598724B2

公开(公告)日：2023-03-07

申请号：US16931672

申请日：2020-07-17

Applicant: SYSMEX CORPORATION

Inventor： Yasuaki Tsuruoka ,  Tomohiro Tsuji ,  Hiroo Tatsutani ,  Motoi Kinishi ,  Yuji Masuda

IPC: G01N21/64 ,  G01J3/28 ,  G01J3/36 ,  G01J3/44 ,  G01N15/10 ,  G01N21/27 ,  G01N15/14 ,  G01N33/58 ,  G01N21/53

Abstract: A measuring apparatus includes a flow cell through which a sample containing particles flows, a light source for irradiating light on the sample flowing through the flow cell, a fluorescence detector for detecting the fluorescence generated from the sample irradiated with light from the light source, and a control unit for flowing a positive control sample containing a fluorescent dye through the flow cell, measuring the fluorescence generated from the positive control sample irradiated by the light from the light source via the fluorescence detector, comparing the obtained measurement value and a reference value, and adjusting the detection sensitivity of the fluorescence detector according to the comparison result.

公开(公告)号：US11598667B2

公开(公告)日：2023-03-07

申请号：US17277993

申请日：2019-09-18

Applicant: OSRAM OLED GmbH

Inventor： Christian Leirer ,  Christian Mueller ,  Ulrich Steegmüller

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/28 ,  G01J3/42 ,  G01N21/31

Abstract: In an embodiment a measuring unit includes a light emitting LED component including a housing occupying a housing surface G and an LED chip located within the housing, the LED chip including a light emitting light surface L and being configured to emit light; a photodetector configured to detect reflected light reflected from a measured object originating from the LED component and output a measurement signal dependent on a detection of the reflected light; and an integrated circuit configured to evaluate the measurement signal, wherein the LED component, the photodetector, and the integrated circuit are combined into an integrated unit; and a conversion layer disposed in the housing and located above the LED chip, the conversion layer configured to convert the light into multiband light, wherein a ratio L/G of is greater than or equal to 0.8, and wherein the measuring unit is configured to optically measure at least one property of the measured object.