公开(公告)号：US12066328B2

公开(公告)日：2024-08-20

申请号：US17955122

申请日：2022-09-28

Applicant: Photothermal Spectroscopy Corp.

Inventor： Derek Decker ,  Craig Prater

IPC: G01J3/02 ,  G01J3/10

CPC classification number: G01J3/0297 ,  G01J3/0216 ,  G01J3/0229 ,  G01J3/108 ,  G01J2003/102

Abstract: Apparatuses and methods for microscopic analysis of a sample using spatial light manipulation to increase signal to noise ratio are described herein.

公开(公告)号：US12044571B2

公开(公告)日：2024-07-23

申请号：US17805922

申请日：2022-06-08

Applicant: SEIKO EPSON CORPORATION

Inventor： Takeshi Nozawa

IPC: G01J3/28 ,  G01J3/02

CPC classification number: G01J3/2803 ,  G01J3/0229 ,  G01J3/0237

Abstract: An autofocusing method includes causing light having n wavelengths different from one another to sequentially pass through a spectral filter and acquiring n image frames corresponding to the n wavelengths, n being an integer greater than or equal to two, selecting a wavelength corresponding to the image frame having the largest statistical value from the n image frames, the statistical value being one of the average, median, and mode of class values of pixels contained in a first region out of entire measurement pixels in each of the image frames, and determining a focusing point in a second region wider than the first region out of the entire measurement pixels while causing the light having the selected wavelength to pass through the spectral filter.

公开(公告)号：US20240210244A1

公开(公告)日：2024-06-27

申请号：US18520284

申请日：2023-11-27

Applicant: Rebellion Photonics, Inc.

Inventor： Robert Timothy Kester ,  Nathan Adrian Hagen

IPC: G01J3/02 ,  G01J3/28 ,  G01J3/36 ,  G01J5/00 ,  G01N21/3504

CPC classification number: G01J3/0232 ,  G01J3/0229 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/36 ,  G01N21/3504 ,  G01J2005/0077

Abstract: Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays.

公开(公告)号：US11998276B2

公开(公告)日：2024-06-04

申请号：US18053090

申请日：2022-11-07

Applicant: ZeaVision, LLC

Inventor： Scott J. Huter ,  Kevin Martin Magrini ,  Edward Allen DeHoog ,  Jeff Alan Burke ,  Nathan Franklin Engel

IPC: A61B3/12 ,  A61B3/00 ,  A61B3/10 ,  A61B3/14 ,  A61B3/15 ,  G01J3/02 ,  G01J3/42

CPC classification number: A61B3/12 ,  A61B3/0025 ,  A61B3/10 ,  A61B3/145 ,  A61B3/152 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/0237 ,  G01J3/42 ,  G01J3/0218

Abstract: A reflectometry instrument includes a light source for emitting an illumination beam that illuminates the macula. A portion of the illumination beam is reflected from the macula and forms a detection beam. The detection beam is indicative of macular pigment in the macula. The instrument also includes a first mirror for reflecting the illumination beam toward the macula and for reflecting the detection beam from the macula. The instrument is configured so that the illumination beam and the detection beam remain separated between the macula and the first mirror.

公开(公告)号：US20240175750A1

公开(公告)日：2024-05-30

申请号：US18434658

申请日：2024-02-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Radwanul Hasan SIDDIQUE ,  Daniel ASSUMPCAO ,  Hyuck CHOO ,  Hyochul KIM

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/18 ,  G01J3/44

CPC classification number: G01J3/2823 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/18 ,  G01J3/4412

Abstract: Optical spectrometers may be used to determine the spectral components of electromagnetic waves. Spectrometers may be large, bulky devices and may require waves to enter at a nearly direct angle of incidence in order to record a measurement. What is disclosed is an ultra-compact spectrometer with nanophotonic components as light dispersion technology. Nanophotonic components may contain metasurfaces and Bragg filters. Each metasurface may contain light scattering nanostructures that may be randomized to create a large input angle, and the Bragg filter may result in the light dispersion independent of the input angle. The spectrometer may be capable of handling about 200 nm bandwidth. The ultra-compact spectrometer may be able to read image data in the visible (400-600 nm) and to read spectral data in the near-infrared (700-900 nm) wavelength range. The surface area of the spectrometer may be about 1 mm2, allowing it to fit on mobile devices.

公开(公告)号：US11971299B2

公开(公告)日：2024-04-30

申请号：US17845486

申请日：2022-06-21

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  CHUNG ANG University Industry Academic Cooperation Foundation

Inventor： Unjeong Kim ,  Jeongsu Han ,  Hyungbin Son ,  Suyeon Lee

IPC: G01J3/28 ,  G01J3/02

CPC classification number: G01J3/0208 ,  G01J3/0229 ,  G01J2003/2826

Abstract: A hyperspectral image sensor includes an optical irradiator configured to irradiate light to a partial region of an object, an optical detector configured to receive detection light generated in the partial region in response to the irradiated light and generate spectrum signals, each of the spectrum signals corresponding to a respective sub-region of a plurality of sub-regions included in the partial region, and a processor configured to generate a hyperspectral image of the partial region based on the spectrum signals.

公开(公告)号：US11965778B2

公开(公告)日：2024-04-23

申请号：US17357421

申请日：2021-06-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Toshiya Fujii ,  Takamasa Ando

IPC: G01J3/28 ,  A61B5/00 ,  G01B11/24 ,  G01J3/02 ,  G01J3/12 ,  G01N21/47 ,  G01N21/64 ,  G01N21/65 ,  G01S17/89

CPC classification number: G01J3/2823 ,  A61B5/0075 ,  G01B11/24 ,  G01J3/0229 ,  G01J3/2803 ,  G01J3/2846 ,  G01J3/2889 ,  G01N21/65 ,  G01S17/89 ,  A61B5/0042 ,  G01J2003/1213 ,  G01J2003/2826 ,  G01N2021/4797 ,  G01N21/64

Abstract: An optical filter including filter regions arrayed two-dimensionally, in which the filter regions include a first region and a second region; a wavelength distribution of an optical transmittance of the first region has a first local maximum in a first wavelength band and a second local maximum in a second wavelength band that differs from the first wavelength band, and a wavelength distribution of an optical transmittance of the second region has a third local maximum in a third wavelength band that differs from each of the first wavelength band and the second wavelength band and a fourth local maximum in a fourth wavelength band that differs from the third wavelength band.

公开(公告)号：US11963721B2

公开(公告)日：2024-04-23

申请号：US16961333

申请日：2019-01-11

Applicant: Centre for Eye Research Australia Limited

Inventor： Xavier Hadoux ,  Flora Hui ,  Peter Van Wijngaarden ,  Jonathan Guy Crowston

IPC: A61B3/10 ,  A61B3/12 ,  A61B3/14 ,  A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  A61B6/03 ,  G01J3/02 ,  G06V10/143 ,  G06V10/60 ,  G06V20/69 ,  G06V40/18 ,  G16H10/40 ,  G16H30/40 ,  G16H50/20 ,  G16H70/60 ,  G06V10/58

CPC classification number: A61B3/10 ,  A61B3/12 ,  A61B3/14 ,  A61B5/0075 ,  A61B5/14507 ,  A61B5/1455 ,  A61B5/4088 ,  A61B5/7264 ,  A61B6/037 ,  G01J3/0229 ,  G06V10/143 ,  G06V10/60 ,  G06V20/693 ,  G06V20/695 ,  G06V40/18 ,  G16H10/40 ,  G16H30/40 ,  G16H50/20 ,  G16H70/60 ,  G06V10/58

Abstract: The present disclosure relates to a method and a system for quantifying a biomarker of a biological tissue. Two spectral sub-intervals are determined from a plurality of images of the tissue acquired at discrete wavelengths within a main wavelength interval using an imaging sensor in a manner such that the combination of the image data in the at least two spectral sub-intervals are correlated with a clinical variable of interest. The tissue is illuminated using one or more light sources with wavelengths within the at least two spectral sub-intervals. A measurement is of the light reflected by the tissue is acquired using an imaging sensor; and a measure of the biomarker of the tissue is calculated using the acquired measurement. The main wavelength interval is broader than each of the at least two spectral sub-intervals and at least one spectral confounder causing a spectral variability of the acquired image is present in the tissue.

公开(公告)号：US20240068868A1

公开(公告)日：2024-02-29

申请号：US18505253

申请日：2023-11-09

Applicant: VIAVI Solutions Inc.

Inventor： William D. HOUCK ,  Valton SMITH

IPC: G01J3/02 ,  G01J3/42 ,  G01S17/08

CPC classification number: G01J3/027 ,  G01J3/0229 ,  G01J3/42 ,  G01S17/08

Abstract: A device may determine a time-of-flight measurement by performing a sample of a sensor based on light received via at least one first spectral filter, wherein the at least one first spectral filter is associated with a spectral range for a time-of-flight measurement; determine that a condition is satisfied with regard to the time-of-flight measurement, wherein the condition relates to an orientation or a position of the sensor or the sensor device relative to a measurement target; trigger a spectrometry measurement to be performed based on determining that the condition is satisfied with regard to the time-of-flight measurement; and perform, based on light received via at least one second spectral filter and by performing a sample of the sensor, the spectrometry measurement for the measurement target based on the condition being satisfied with regard to the time-of-flight measurement.

公开(公告)号：US11879775B2

公开(公告)日：2024-01-23

申请号：US17247809

申请日：2020-12-23

Applicant: Rebellion Photonics, Inc.

Inventor： Robert Timothy Kester ,  Nathan Adrian Hagen

IPC: G01J3/02 ,  G01J3/28 ,  G01N21/3504 ,  G01J3/36 ,  G01J5/00

CPC classification number: G01J3/0232 ,  G01J3/0229 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/36 ,  G01N21/3504 ,  G01J2005/0077

Abstract: Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays.