公开(公告)号：US11921206B2

公开(公告)日：2024-03-05

申请号：US18057463

申请日：2022-11-21

Applicant: Waymo LLC

Inventor： Pierre-Yves Droz ,  Blaise Gassend ,  Caner Onal ,  David Hutchison

IPC: G01S7/481 ,  G01J1/04 ,  G01J1/42 ,  G01J1/44 ,  G01J3/02 ,  G01S7/486 ,  G01S7/4863 ,  G01S17/08 ,  G01S17/10 ,  G01S17/42

CPC classification number: G01S17/08 ,  G01J1/0411 ,  G01J1/0414 ,  G01J1/0422 ,  G01J1/0437 ,  G01J1/0448 ,  G01J1/0474 ,  G01J1/0488 ,  G01J1/4228 ,  G01J1/44 ,  G01J3/0208 ,  G01J3/0229 ,  G01S7/481 ,  G01S7/4816 ,  G01S7/4863 ,  G01S7/4868 ,  G01S17/10 ,  G01S17/42 ,  G01J2001/442 ,  G01J2001/4466

Abstract: The present disclosure relates to limitation of noise on light detectors using an aperture. One example embodiment includes a system. The system includes a lens disposed relative to a scene and configured to focus light from the scene onto a focal plane. The system also includes an aperture defined within an opaque material disposed at the focal plane of the lens. The aperture has a cross-sectional area. In addition, the system includes an array of light detectors disposed on a side of the focal plane opposite the lens and configured to intercept and detect diverging light focused by the lens and transmitted through the aperture. A cross-sectional area of the array of light detectors that intercepts the diverging light is greater than the cross-sectional area of the aperture.

公开(公告)号：US11913837B2

公开(公告)日：2024-02-27

申请号：US17687908

申请日：2022-03-07

Applicant: TRIPLE WIN TECHNOLOGY(SHENZHEN) CO. LTD.

Inventor： Hsin-Yen Hsu ,  Ye-Quang Chen ,  Ho-Kai Liang ,  Yi-Mou Huang ,  Jian-Zong Liu

IPC: G01J3/45 ,  G01J3/02 ,  G01J3/04 ,  G01J3/18 ,  G01J3/28

CPC classification number: G01J3/45 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/024 ,  G01J3/0272 ,  G01J2003/045 ,  G01J3/18 ,  G01J2003/284

Abstract: An optical module includes a micro spectrometer. The micro spectrometer includes an optical crystal, a lens, and a photosensitive assembly. The optical crystal is configured to receive detection light and covert the detection light into interference light. The optical crystal is surrounded by a sleeve, the sleeve configured to fix a position of the optical crystal. The lens is configured for receiving the interference light and focusing the interference light. The photosensitive assembly is configured for imaging the interference light into an interference image. The optical module further comprises a controller. The controller is electrically connected to the photosensitive assembly, and the controller is used to convert the interference image into light wavelength signals and light intensity signals.

公开(公告)号：US20240044708A1

公开(公告)日：2024-02-08

申请号：US18548032

申请日：2023-02-22

Applicant: Nanjing NUOYUAN MEDICAL DEVICES CO., LTD.

Inventor： Huiming CAI ,  Ziyang WANG

IPC: A61B5/00 ,  G01N21/65 ,  G01J3/44 ,  G01J3/02

CPC classification number: A61B5/0075 ,  G01N21/65 ,  G01J3/44 ,  G01J3/0208 ,  G01J3/0218

Abstract: A Raman spectroscopy probe and a Raman spectroscopy detection device are provided, including an optical fiber module, and a magnifying lens group and a detection window sequentially arranged on an optical path thereof. The module includes an excitation fiber and parallel collection fibers surrounding a periphery thereof. The magnifying lens group includes sequentially-arranged convex lenses. The detection window is located near an object-distance position of a lens close to a detection end. A distance between two adjacent convex lenses is equal to a sum of former's image distance and latter's object distance. Focal lengths of the convex lenses in the magnifying lens group are f, and satisfy a ratio of the object distance to the image distance of n:1, and a length L of the magnifying lens group satisfies:





L
=




n
+
2
+

1
n




log
10

⁢
n


·
f
·

log
10


⁢
N


,




wherein





n
=

N
m


,




N is a magnification, and m is a number of the convex lenses.

公开(公告)号：US11879780B2

公开(公告)日：2024-01-23

申请号：US17598211

申请日：2019-11-21

Applicant: WEIPENG (SUZHOU) MEDICAL DEVICES CO., LTD.

Inventor： Yan Xia ,  Bin Yang ,  Rui Li

IPC: G01J3/44 ,  G01J3/02 ,  G01J3/10 ,  G01N21/65 ,  G02B21/00 ,  G02B21/18

CPC classification number: G01J3/4412 ,  G01J3/0208 ,  G01J3/10 ,  G01N21/65 ,  G02B21/006 ,  G02B21/008 ,  G02B21/0048 ,  G02B21/18 ,  G01N2021/653

Abstract: A coherent anti-Stokes Raman scattering microscope imaging apparatus, comprising: a laser light source (21), a two-dimensional oscillating mirror assembly (22), a first light dichroic mirror plate (23), an objective lens (24), a sample translation platform (25), a collection device (26), and a data processing module; the laser light source (21) is used for producing a first laser beam and a second laser beam; the first laser beam and the second laser beam are coaxially emitted and are incident on the two-dimensional oscillating mirror assembly (22); the first laser beam and the second laser beam leaving the two-dimensional oscillating mirror assembly pass through the first light dichroic mirror plate (23) and the objective lens (24); the objective lens (24) focuses the first laser beam and the second laser beam onto the sample translation platform; the signal light produced on the sample translation platform (25) passes through the objective lens (24).

公开(公告)号：US11877845B1

公开(公告)日：2024-01-23

申请号：US16669403

申请日：2019-10-30

Applicant: Brigham Young University

Inventor： Robert Davis ,  Richard Vanfleet ,  Nick Morrill ,  David Miller

IPC: A61B5/145 ,  G01J3/02 ,  G01J3/12 ,  A61B5/00 ,  A61B5/02 ,  A61B5/1455

CPC classification number: A61B5/14546 ,  A61B5/02007 ,  A61B5/1455 ,  A61B5/681 ,  G01J3/0208 ,  G01J3/0256 ,  G01J3/12 ,  G01J2003/1213

Abstract: A method, system, apparatus, and/or device to determine a condition of a user using a spectrometer with a collimator on a glass substrate. The method, system, apparatus, and/or device may include: a band comprising a shape, size, and flexibility designed for attaching the band to a body part of a user; a light source embedded in the band that emits light comprising a constituent wavelength that provides an indication of a feature of the body part; an optical sensor positioned in the band to receive the constituent wavelength; and a glass substrate oriented in the band to receive the light, the glass substrate comprising: an optical filter that comprises a passband to isolate the constituent wavelength from other wavelengths of the light; and a carbon nanotube grid structure comprising walls and through-channels, the carbon nanotube grid structure adhered to the glass substrate.

公开(公告)号：US11867564B2

公开(公告)日：2024-01-09

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 ,  G01J3/02 ,  G01J3/36 ,  G01J5/00 ,  G01J3/26 ,  G01J3/28 ,  G01J5/20 ,  G01J5/0806 ,  G01J5/0802 ,  G01J5/0804 ,  H04N23/11 ,  H04N25/67 ,  H04N25/671 ,  H04N25/673 ,  G01N21/3504 ,  G01J3/12 ,  G01N21/17 ,  G01J5/80

CPC classification number: G01J5/53 ,  G01J3/0208 ,  G01J3/0232 ,  G01J3/0256 ,  G01J3/0297 ,  G01J3/12 ,  G01J3/26 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/36 ,  G01J5/0014 ,  G01J5/0802 ,  G01J5/0804 ,  G01J5/0806 ,  G01J5/20 ,  G01N21/3504 ,  H04N3/09 ,  H04N5/33 ,  H04N23/11 ,  H04N25/67 ,  H04N25/671 ,  H04N25/673 ,  G01J5/80 ,  G01J2003/283 ,  G01J2003/2826 ,  G01J2005/0077 ,  G01N2021/1793 ,  G01N2021/3531 ,  G01N2201/068 ,  G01N2201/06106 ,  G01N2201/127

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：US11867558B2

公开(公告)日：2024-01-09

申请号：US16485686

申请日：2018-02-13

Applicant: MKS TECHNOLOGY, INC.

Inventor： Danial Clark Barkhurst ,  Sean Patrick Woodward ,  Keith Thompson Carron ,  Shane Alan Buller

IPC: G01J3/02 ,  G01J3/44 ,  G02B7/182

CPC classification number: G01J3/0208 ,  G01J3/0289 ,  G01J3/44 ,  G02B7/1822 ,  G02B7/1827 ,  G01J3/0218

Abstract: Optical systems have uses, such as in spectrometers, for directing a beam. A spectrometer, for example, utilizes an optical system for directing an incident beam toward a sample and receiving a spectroscopy signal from the sample. In various implementations, for example, an optical system may be further configured to move a beam with respect to a target, such as a sample, and still provide a home position where the beam is directed in a stationary configuration. A self-homing (e.g., self-centering) optical system may provide a “home” position in which the beam is directed in a first stationary mode while still allowing a focused beam to be moved with respect to a target in a second dynamic mode.

公开(公告)号：US20230408337A1

公开(公告)日：2023-12-21

申请号：US18320172

申请日：2023-05-18

Applicant: WUHAN UNIVERSITY

Inventor： Ruyi WEI

IPC: G01J3/453 ,  G01J3/02 ,  G01J3/28 ,  G01J3/06

CPC classification number: G01J3/4535 ,  G01J3/0208 ,  G01J3/021 ,  G01J2003/4538 ,  G01J3/06 ,  G01J2003/062 ,  G01J2003/064 ,  G01J3/2823

Abstract: The present invention belongs to the field of optical technology, disclosing a quadrilateral common-path time-modulated interferometric spectral imaging device and method. The present invention sets up a moving mirror scanning mechanism in a quadrilateral common path interferometer for generating optical path differences that vary with time, so that the quadrilateral common-path time-modulated interferometric spectral imaging device operates in the staring observation mode. The invention can make the quadrilateral common-path time-modulated interferometric spectral imaging device not only retain the advantages of common optical path spectroscopic technology, but also obtain high spectral resolution.

公开(公告)号：US11835387B2

公开(公告)日：2023-12-05

申请号：US17457417

申请日：2021-12-02

Applicant: Lawrence Livermore National Security, LLC

Inventor： Hoang T. Nguyen ,  Michael C. Rushford

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/18

CPC classification number: G01J3/0208 ,  G01J3/021 ,  G01J3/10 ,  G01J3/18 ,  G01J2003/102 ,  G01J2003/1861

Abstract: A spectral beam combining system includes a spectral channel splicer comprising a plurality of reflectors and a spectral beam combiner comprising a diffraction optical element such as a diffraction grating. This spectral beam combining system may facilitate combining an increased number of spectral channels thereby producing higher optical power of the combining beam system.

公开(公告)号：US20230384217A1

公开(公告)日：2023-11-30

申请号：US18316559

申请日：2023-05-12

Applicant: Masimo Corporation

Inventor： Björn Le Normand ,  Åke Forslund ,  Björn Danwihl

IPC: G01N21/3504 ,  G01J3/02

CPC classification number: G01N21/3504 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/0264 ,  G01N33/004

Abstract: A solid-state gas spectrometer for detection of molecules of target gases. An emitter generates light having wavelengths both within and outside of one or more absorption bands of a target molecule. The light provided by the emitter passes through an airway adapter. A reflective beam splitter splits the light transmitted through the airway adapter, into two convergent beams each focused on a light detector. One of the light detectors, which is covered by a filter that rejects light having wavelengths within one or more absorption bands of the target molecule, serves as the sensing detector. The other light detector, which may or may not be covered by a filter, serves as the reference detector. The concentration of a target gas molecule in the gas sample is estimated based on a differential signal that is generated using the signals received from the reference and sensing detectors.