知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

1360 records (took 0.087 seconds)

    Concealment component for an optical sensor device
    2.
    发明授权
    Concealment component for an optical sensor device 有权

    公开(公告)号：US12196611B2

    公开(公告)日：2025-01-14

    申请号：US17657233

    申请日：2022-03-30

    Applicant: VIAVI Solutions Inc.

    Inventor： William D. Houck ,  Fred Van Milligen

    IPC: G01J3/02 ,  G01J1/04 ,  G01J1/42 ,  G01J3/12 ,  G01J3/28 ,  G01J3/42 ,  G02B5/02 ,  G02B5/20

    Abstract: A concealment component for an optical sensor device includes an optical filter and one or more diffusive optical structures. The one or more diffusive optical structures are configured to distribute light in a diffused pattern on an input surface of the optical filter. The optical filter is configured to pass a first set of light beams, of the light distributed in the diffused pattern on the input surface of the optical filter, that are associated with a particular wavelength range, and prevent a second set of light beams, of the light distributed in the diffused pattern on the input surface of the optical filter, that are not associated with the particular wavelength range, from passing. Preventing the second set of light beams from passing is to cause the second set of light beams to be directed away from or absorbed by the concealment component in a concealment pattern.

    OPTICAL FILTER FOR AN OPTICAL SENSOR DEVICE
    4.
    发明申请
    OPTICAL FILTER FOR AN OPTICAL SENSOR DEVICE 有权

    公开(公告)号：US20240410757A1

    公开(公告)日：2024-12-12

    申请号：US18809402

    申请日：2024-08-20

    Applicant: VIAVI Solutions Inc.

    Inventor： William D. HOUCK

    IPC: G01J3/51 ,  B32B3/30 ,  G01J3/12 ,  G01J3/28 ,  G02B5/20 ,  H04N25/13

    Abstract: An optical sensor device, includes an optical sensor that has a set of sensor elements, an optical filter that includes a plurality of regions, and one or more processors. A region, of the plurality of regions, includes a first set of optical channels comprising optical channels that are configured to pass light associated with respective subranges of a first wavelength range, a second set of optical channels comprising optical channels that are configured to pass light associated with respective subranges of a second wavelength range, and a third set of optical channels comprising optical channels that are configured to pass light associated with respective subranges of a third wavelength range. The one or more processors are configured to obtain, from the optical sensor, sensor data associated with a scene and determine image information associated with the scene based on the spectral information.

    SYSTEM AND METHOD FOR QUANTUM ABSORPTION SPECTROSCOPY
    5.
    发明申请
    SYSTEM AND METHOD FOR QUANTUM ABSORPTION SPECTROSCOPY 有权

    公开(公告)号：US20240385043A1

    公开(公告)日：2024-11-21

    申请号：US18694232

    申请日：2022-09-08

    Applicant: KYOTO UNIVERSITY

    Inventor： Shigeki TAKEUCHI ,  Yu MUKAI ,  Ryo OKAMOTO

    IPC: G01J3/433 ,  G01J3/02 ,  G01J3/12 ,  G01J3/26 ,  G01J3/28 ,  G02F1/35 ,  G02F1/355

    Abstract: An image sensor (3) includes a light receiving surface on which a plurality of pixels are disposed, and detects a signal photon. A memory (42) stores, as a map, a correspondence between a parameter indicating the position of each pixel on the light receiving surface and the wavelength of the signal photon detected by the pixel. A processor (41) executes arithmetic processing for calculating the spectral characteristic of a sample disposed on an optical path of an idler photon. An optical system (21) includes a moving mirror (209) configured to apply modulation to the phase of 10 quantum interference. The processor (41) acquires, from a predetermined number of pixels disposed on the light receiving surface, a variation in a detection intensity of the signal photon generated by the modulation by moving mirror (209), and calculates the spectral characteristic based on the visibility of the quantum interference obtained from the variation and the map.

    CASCADED, SELF-CALIBRATED, SINGLE-PIXEL INFRARED HADAMARD TRANSFORM SPECTROMETER
    6.
    发明申请
    CASCADED, SELF-CALIBRATED, SINGLE-PIXEL INFRARED HADAMARD TRANSFORM SPECTROMETER 有权

    公开(公告)号：US20240377252A1

    公开(公告)日：2024-11-14

    申请号：US18292507

    申请日：2022-07-22

    Applicant: NATIONAL UNIVERSITY OF SINGAPORE

    Inventor： Zi Heng LIM ,  Yi QI ,  Senthil Kumar ANANTHARAJAN ,  Chengkuo LEE ,  Guangya ZHOU

    IPC: G01J3/02 ,  G01J3/12 ,  G01J3/28

    Abstract: Infrared spectrometer and method of performing infrared spectrometry. In one embodiment, the method comprises the steps of providing a first single pixel detector sensitive to infrared light in a first spectral range; providing an entrance slit for receiving an infrared light signal; disposing a moveable encoding mask between the entrance slit and the first single pixel detector for encoding based multiplexing, the moveable encoding mask comprising at least three adjacent coding sections along an encoding moving direction thereof, each coding section comprising the same coding pattern in a cyclic manner such that a last encoding step of one encoding section is the same as a first encoding step in a next encoding section step; disposing a dispersion and imaging optics between the entrance slit and the moveable encoding mask for dispersing the infrared signal and for imaging the dispersed infrared signal onto the moveable encoding mask; disposing a collection optics between the moveable encoding mask and the first single pixel detector for collecting an encoding based multiplexed version of the infrared signal onto the first single pixel photodetector; selectively allowing only one of at least first and second bands within the first spectral range to be imaged onto respective ones of the coding sections excluding a first coding section along the encoding moving direction of the moveable encoding mask, in a starting position of the moveable encoding mask; and moving the moveable encoding mask in the encoding moving direction for the encoding based multiplexing.

    In-situ infra-red and ultra-violet photometer
    7.
    发明授权
    In-situ infra-red and ultra-violet photometer 有权

    公开(公告)号：US12104957B2

    公开(公告)日：2024-10-01

    申请号：US17620408

    申请日：2020-06-25

    Applicant: Protea Ltd

    Inventor： Chris Daw ,  Robin Hutchinson

    IPC: G01J3/427 ,  G01J3/02 ,  G01J3/10 ,  G01J3/12 ,  G01N21/33 ,  G01N21/3504 ,  G01N33/00 ,  G01N21/31

    CPC classification number: G01J3/427 ,  G01J3/0218 ,  G01J3/108 ,  G01J3/12 ,  G01N21/33 ,  G01N21/3504 ,  G01N33/0037 ,  G01N33/0042 ,  G01J2003/102 ,  G01J2003/1213 ,  G01N2021/3155 ,  G01N2201/08

    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.

    Optical filter for an optical sensor device
    8.
    发明授权
    Optical filter for an optical sensor device 有权

    公开(公告)号：US12092522B2

    公开(公告)日：2024-09-17

    申请号：US18185541

    申请日：2023-03-17

    Applicant: VIAVI Solutions Inc.

    Inventor： William D. Houck

    IPC: G02B5/20 ,  B32B3/30 ,  G01J3/12 ,  G01J3/28 ,  G01J3/51 ,  H04N25/13

    CPC classification number: G01J3/513 ,  B32B3/30 ,  G01J3/12 ,  G01J3/2823 ,  G02B5/201 ,  B32B2307/42 ,  G01J2003/1239 ,  G01J2003/2826 ,  H04N25/135

    Abstract: An optical sensor device, includes an optical sensor that has a set of sensor elements, an optical filter that includes a plurality of regions, and one or more processors. A region, of the plurality of regions, includes a first set of optical channels comprising optical channels that are configured to pass light associated with respective subranges of a first wavelength range, a second set of optical channels comprising optical channels that are configured to pass light associated with respective subranges of a second wavelength range, and a third set of optical channels comprising optical channels that are configured to pass light associated with respective subranges of a third wavelength range. The one or more processors are configured to obtain, from the optical sensor, sensor data associated with a scene and determine image information associated with the scene based on the spectral information.

    On-chip temperature-insensitive read-out
    10.
    发明授权
    On-chip temperature-insensitive read-out 有权

    公开(公告)号：US12018984B2

    公开(公告)日：2024-06-25

    申请号：US17776032

    申请日：2020-11-18

    Applicant: UNIVERSITEIT GENT ,  IMEC VZW

    Inventor： Fabio Pavanello ,  Dries Van Thourhout ,  Roeland Baets

    IPC: G01J3/28 ,  G01J3/02 ,  G01J3/12

    CPC classification number: G01J3/0294 ,  G01J3/12 ,  G01J3/28 ,  G01J2003/1213 ,  G01J2003/2879

    Abstract: A temperature compensation method for wavelength monitoring using spectrometers on photonic integrated chips and a related temperature-compensated wavelength monitoring device include an optical filter of the chip filters a source signal to provide at least one spectral reference line to a first spectrometer to detect thermal wavelength drifts thereof. At least one spectral line to be monitored is received by the same or another spectrometer of the chip to detect wavelength shifts thereof. The detected thermal drift of the reference line is compared to calibrated thermal drifts for the reference line which is associated with a calibrated thermal drift for the spectral response curve of the spectrometer receiving the spectral line to be monitored. A thermal drift rate for the response curve of the optical filter differs from a thermal drift rate for the response curve of the first spectrometer at least by an amount.

Patent Agency Ranking