公开(公告)号：US11596311B2

公开(公告)日：2023-03-07

申请号：US17666518

申请日：2022-02-07

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

Abstract: A measurement system is provided with an array of laser diodes with one or more Bragg reflectors. At least a portion of the light generated by the array is configured to penetrate tissue comprising skin. A detection system configured to: measure a phase shift, and a time-of-flight, of at least a portion of the light from the array of laser diodes reflected from the tissue relative to the portion of the light generated by the array; generate one or more images of the tissue; detect oxy- or deoxy-hemoglobin in the tissue; non-invasively measure blood in blood vessels within or below a dermis layer within the skin; measure one or more physiological parameters based at least in part on the non-invasively measured blood; and measure a variation in the blood or physiological parameter over a period of time.

公开(公告)号：US11579459B2

公开(公告)日：2023-02-14

申请号：US16768506

申请日：2018-05-02

Applicant: Agilent Technologies, Inc.

Inventor： Sean M. Kent ,  Lindsay Buck

IPC: G01J3/12 ,  G02B27/42 ,  G01J3/02 ,  G01J3/18 ,  G01J3/26 ,  G02B17/06 ,  G02B27/00 ,  G02B27/10 ,  G02B27/30

Abstract: A polychromator system comprising: an optical element defining an aperture; a collimation mirror for receiving light via the aperture and reflecting substantially collimated light; at least a first dispersive optical component and a second dispersive optical component, each configured to disperse the substantially collimated light received from the collimation mirror by different amounts for different wavelengths and to provide cross-dispersed light having different wavelengths of light spaced along a first and second axis; and a focus mirror positioned to focus the cross-dispersed light onto a 2-D array detector to provide a plurality of aperture images of the aperture at a respective plurality of regions of the detector, each of the plurality of aperture images associated with a respective wavelength of the cross-dispersed light. Either one or both of the collimation mirror and the focus mirror is a freeform mirror having a reflective surface configured to mitigate effects of optical aberrations of the polychromator system over a plurality of the wavelengths of the cross-dispersed light along the first axis and the second axis and thereby optimise the resolution of the plurality of aperture images associated with the plurality of the wavelengths along the first axis and the second axis.

公开(公告)号：US11573124B2

公开(公告)日：2023-02-07

申请号：US16953910

申请日：2020-11-20

Applicant: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY

Inventor： Yukihiro Takahashi ,  Junichi Kurihara ,  Tetsuro Ishida

IPC: H04N7/00 ,  G01J3/28 ,  B64C39/02 ,  B64D47/08 ,  G01J3/02 ,  G01J3/32 ,  G01J3/51 ,  G01N21/31 ,  G02F1/1335 ,  G01J3/12 ,  H04N7/18

Abstract: A spectral image capturing method using a spectral camera control device installed in aircraft, the method comprising:
a) setting an exposure time of the spectral camera so that a current exposure time is determined (S2),
b) determining whether or not either an amount of attitude change or an amount of position change of the spectral camera per exposure time exceeds a predetermined threshold based on a spatial resolution of the spectral camera (S4),
c1) when exceeding the predetermined threshold, resetting the current exposure time to be shorter (S5),
c2) when not exceeding the predetermined threshold, not resetting the current exposure time to be shorter, and
d) capturing a spectral image in a snapshot mode with the spectral camera using the reset exposure time,
wherein when the transmission wavelength of the liquid crystal tunable filter is switched while the aircraft is in a stationary flight, steps b) to d) are repeated.

公开(公告)号：US11570371B2

公开(公告)日：2023-01-31

申请号：US16633667

申请日：2018-07-18

Applicant: Sony Group Corporation

Inventor： Masatoshi Takashima

IPC: H04N5/235 ,  G06T7/90 ,  G01J3/28 ,  G01J1/42 ,  G03B7/097 ,  H04N5/238 ,  G01N21/63 ,  G01J3/12

Abstract: The present technology relates to an imaging apparatus, an imaging method, and a program that perform appropriate exposure control, to thereby enable a desired object to be appropriately imaged.
The present technology includes: an imaging unit including a plurality of pixels having different spectral characteristics; and an exposure control unit setting information associated with exposure control on the plurality of pixels depending on specification information for specifying a kind of a measurement target. Alternatively, the present technology includes: an imaging unit including a plurality of pixels having different spectral characteristics; and an exposure control unit setting information associated with exposure control on the plurality of pixels on the basis of a predicted output value of each of the plurality of pixels based on a spectral characteristic related to a measurement target. The present technology is applicable to an imaging apparatus which senses vegetation, for example.

公开(公告)号：US11561407B2

公开(公告)日：2023-01-24

申请号：US17034132

申请日：2020-09-28

Applicant: Cymer, LLC

Inventor： Eric Anders Mason

IPC: G02B26/00 ,  G02B27/14 ,  G02B27/12 ,  G02B5/04 ,  G02B27/42 ,  G01J3/06 ,  G01J3/14 ,  G01J3/18 ,  G03F7/20 ,  H01S3/08 ,  H01L21/027 ,  H01S3/00 ,  H01S3/23 ,  G01J3/12 ,  H01S3/225

Abstract: A spectral feature selection apparatus includes a dispersive optical element arranged to interact with a pulsed light beam; three or more refractive optical elements arranged in a path of the pulsed light beam between the dispersive optical element and a pulsed optical source; and one or more actuation systems, each actuation system associated with a refractive optical element and configured to rotate the associated refractive optical element to thereby adjust a spectral feature of the pulsed light beam. At least one of the actuation systems is a rapid actuation system that includes a rapid actuator configured to rotate its associated refractive optical element about a rotation axis. The rapid actuator includes a rotary stepper motor having a rotation shaft that rotates about a shaft axis that is parallel with the rotation axis of the associated refractive optical element.

公开(公告)号：US11506598B2

公开(公告)日：2022-11-22

申请号：US16699552

申请日：2019-11-29

Applicant: Wei Gao ,  Chang Yong ,  Silviu Velicu ,  Sivalingam Sivananthan

Inventor： Wei Gao ,  Chang Yong ,  Silviu Velicu ,  Sivalingam Sivananthan

IPC: G01J3/02 ,  G01N21/25 ,  G01J3/10 ,  G01J3/12 ,  G01N21/35

Abstract: A multiband IR adjunct (MIRA) sensor to spectroscopically determine the content and the concentration of chemical composition of a targeted object, includes a sensor housing, a first front optics in a first optical channel, a second front optics in the first optical channel, an acousto-optic tunable filter (AOTF), a photo detector (PD), a set of back optics in the first optical channel that focuses polarized narrow-band light beams received from the AOTF device onto the PD, the PD converting the polarized narrow-band light beams into an electrical signal, and a data acquisition unit signal-connected to the PD, the data acquisition unit collecting the electrical signals. Multiple optical channels can be provided within the housing to analyze UV/VIS/near infrared (NIR), short-wavelength infrared (SWIR), mid-wavelength infrared (MWIR), and LWIR wavelength ranges respectively.

公开(公告)号：US20220341783A1

公开(公告)日：2022-10-27

申请号：US17620408

申请日：2020-06-25

Applicant: Protea Ltd

Inventor： Chris Daw ,  Robin Hutchinson

IPC: G01J3/427 ,  G01J3/10 ,  G01J3/02 ,  G01J3/12 ,  G01N21/33 ,  G01N21/3504 ,  G01N33/00

Abstract: The invention relates to a photometer (30) for analysing the composition of a sample gas. The photometer comprises an infra-red (IR) source (20) configured to direct a first plurality of pulses (40) of IR radiation through the sample gas to an IR detector (26), at least two of the first plurality of pulses being of different wavelength. The photometer further comprises an ultraviolet (UV) source (32) configured to generate a second plurality of pulses (38) of UV radiation for conveyance to a UV detector (36), at least two of the second plurality of pulses being of different wavelength. A path selection arrangement (22, 42-50) is configured to selectively convey different ones of the second plurality of pulses (38) to one of the sample gas and the UV detector (36). The photometer further comprises processing circuitry coupled to the IR source (20), the UV source (32), the IR detector (26), the UV detector (36) and the path selection arrangement (22, 42-50). The processing circuitry is configured to (i) select the wavelength to be used for a given UV pulse of the second plurality of pulses (38), (ii) receive a plurality of detection signals from each of the IR detector (26) and the UV detector (36) and (iii) based on the detection signals, determine a concentration of at least one component of the sample gas. A method for analysing the composition of a sample gas is also disclosed.

公开(公告)号：US11428573B2

公开(公告)日：2022-08-30

申请号：US17112144

申请日：2020-12-04

Applicant: Infineon Technologies AG

Inventor： Saumitra Sanjeev Chafekar

IPC: G01J3/12 ,  G01J3/02 ,  G01J3/42 ,  B82Y20/00

Abstract: A light emitting structure for a photo-acoustic spectroscopy sensing device for sensing a target gas comprises a light source configured for emitting light of an input wavelength. The light emitting structure further comprises a conversion structure that is configured for absorbing light of the input wavelength, and that is further configured for emitting light of an output wavelength. The output wavelength of the conversion structure is adapted to an absorption wavelength of the target gas. The conversion structure comprises an output conversion layer that comprises a plurality of nanoparticles. The nanoparticles of the output conversion layer are configured for emitting light of the output wavelength.

公开(公告)号：US20220228922A1

公开(公告)日：2022-07-21

申请号：US17658567

申请日：2022-04-08

Applicant: Rebellion Photonics, Inc.

Inventor： Robert Timothy KESTER ,  Nathan Adrian HAGEN

IPC: G01J5/53 ,  H04N5/33 ,  H04N3/09 ,  H04N5/365 ,  G01J3/02 ,  G01J3/36 ,  G01J5/00 ,  G01J3/26 ,  G01J3/28 ,  G01J5/20 ,  G01J5/0806 ,  G01J5/0802 ,  G01J5/0804 ,  G01N21/3504 ,  G01J3/12

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：US11333597B2

公开(公告)日：2022-05-17

申请号：US15942430

申请日：2018-03-30

Applicant: CYTEK BIOSCIENCES, INC.

Inventor： Ming Yan ,  Yung-Chieh Hsieh ,  David Vrane ,  Eric Chase ,  Wenbin Jiang

IPC: G01N15/14 ,  G01J3/02 ,  G01J3/28 ,  G01J3/36 ,  G01N21/64 ,  G01J3/44 ,  G01J3/18 ,  G01J3/14 ,  G01N21/53 ,  G01J3/12 ,  G01N15/00 ,  G01N15/10

Abstract: A system, an apparatus, and a method are provided for a modular flow cytometer with a compact size. In one embodiment, the modular flow cytometry system includes the following: a laser system for emitting laser beams; a flow cell assembly positioned to receive the laser beams at an interrogation region of a fluidics stream where fluoresced cells scatter the laser beams into fluorescent light; a fiber assembly positioned to collect the fluorescent light; and a compact light detection module including a first image array having a transparent block, a plurality of micro-mirrors in a row coupled to a first side of the transparent block, and a plurality of filters in a row coupled to a second side of the transparent block opposite the first side.