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    CASCADED, SELF-CALIBRATED, SINGLE-PIXEL INFRARED HADAMARD TRANSFORM SPECTROMETER
    41.
    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.

    Method and system for element identification via optical emission spectroscopy
    42.
    发明授权
    Method and system for element identification via optical emission spectroscopy 有权

    公开(公告)号：US12140478B2

    公开(公告)日：2024-11-12

    申请号：US17766184

    申请日：2019-12-23

    Applicant: Agilent Technologies, Inc.

    Inventor： Daniel Finn McCarthy ,  Mark Andrew Woods

    IPC: G01J3/443 ,  G01N21/73 ,  G01J3/28

    Abstract: The present invention is directed to a computer-implemented method of automatically identifying the presence of one or more elements in a sample via optical emission spectroscopy. The method includes the steps of obtaining sample spectrum data from the sample, obtaining a list of one or more predetermined emission wavelengths for each element in the periodic table quantifiable by optical emission spectroscopy, each predetermined emission wavelength being associated with a list of one or more potential interference emission wavelengths, determining a list of one or more analyte wavelengths corresponding to spectral peaks in the sample spectrum data based on the list of emission wavelengths, for each analyte wavelength, determining whether the corresponding spectral peak has a likelihood of being affected by an interference emission wavelength causing spectral interference based on the list of one or more potential interference emission wavelengths corresponding to the analyte wavelength, determining a revised list of one or more analyte wavelengths by removing from the list of analyte wavelengths, analyte wavelengths corresponding to spectral peaks having a likelihood of being affected by an interference emission wavelength, and determining a level of confidence that one or more elements are present in the sample based on a set of criteria applied to the revised list of analyte wavelengths.

    Spectral reconstruction of detector sensitivity
    43.
    发明授权
    Spectral reconstruction of detector sensitivity 有权

    公开(公告)号：US12135241B2

    公开(公告)日：2024-11-05

    申请号：US17609153

    申请日：2020-06-17

    Applicant: ams Sensors Germany GmbH

    Inventor： Gunter Siess ,  Julius Komma

    IPC: G01J3/52 ,  G01J3/10 ,  G01J3/28 ,  H04N17/00

    Abstract: The present disclosure describes a method and apparatus that uses spectral reconstruction of detector sensitivity to solve the above and other problems. Specifically, light sources (e.g., of visible light, infrared light and/or ultraviolet light) may target the sensor and emit, in sequence, beams of different wavelength. Spectral output of multiple channels of the sensor is received, the output including intensity (e.g., peak intensity) for each channel. The output is compared with reference intensities for each of the light sources and difference values are calculated. Based on the difference values, a calibration matrix is calculated that can be used in calibrating the specific sensor. In addition, the present disclosure describes an apparatus that includes a plurality of light sources, a receiver for receiving sensor output, and circuitry configured to generate a calibration matrix using the light sources, the receiver using spectral reconstruction of detector sensitivity.

    Multi-spectral microscopic imaging spanning the visible and short-wave infrared range
    44.
    发明授权
    Multi-spectral microscopic imaging spanning the visible and short-wave infrared range 有权

    公开(公告)号：US12117342B2

    公开(公告)日：2024-10-15

    申请号：US17555785

    申请日：2021-12-20

    Applicant: IMEC VZW

    Inventor： Geert Vanmeerbeeck ,  Ziduo Lin ,  Murali Jayapala ,  Abdulkadir Yurt

    IPC: G01J3/28

    CPC classification number: G01J3/2823 ,  G01J3/2803 ,  G01J2003/2826

    Abstract: According to an aspect of the present inventive concept there is provided a device for imaging of a microscopic object, the device comprising:



    an array of light sensitive areas, each being sensitive to detect light spanning a wavelength range of at least 400-1200 nm;
    at least one light source configured to generate light at a plurality of wavelengths within the wavelength range, comprising at least one wavelength in a visible part of the wavelength range and at least one wavelength in a short-wave infrared, SWIR, part of the wavelength range, and arranged to illuminate the microscopic object with the generated light such that at least part of the light is scattered by the microscopic object;
    wherein the device is configured to transmit the scattered light and non-scattered light, from the same light source, to the array of light sensitive areas configured to detect an interference pattern formed between the scattered light and the non-scattered light, for each wavelength.

    Multispectral filter
    45.
    发明授权
    Multispectral filter 有权

    公开(公告)号：US12111211B2

    公开(公告)日：2024-10-08

    申请号：US18323463

    申请日：2023-05-25

    Applicant: VIAVI Solutions Inc.

    Inventor： Michael Klimek

    IPC: G01J3/28 ,  G01J3/02

    CPC classification number: G01J3/2823 ,  G01J3/0294 ,  G01J3/2803 ,  G01J2003/2826

    Abstract: An optical device may comprise an array of sensor elements that includes a plurality of pixels and a multispectral filter disposed on the array of sensor elements. The multispectral filter may be configured to pass a first transmission percentage of light of a particular spectral range to a first set of pixels of the plurality of pixels and pass a second transmission percentage of light of the particular spectral range to a second set of pixels of the plurality of pixels.

    SYSTEM AND METHOD FOR AUTHENTICATING AND CLASSIFYING PRODUCTS USING HYPER-SPECTRAL IMAGING
    49.
    发明公开
    SYSTEM AND METHOD FOR AUTHENTICATING AND CLASSIFYING PRODUCTS USING HYPER-SPECTRAL IMAGING 审中-公开

    公开(公告)号：US20240310212A1

    公开(公告)日：2024-09-19

    申请号：US18121060

    申请日：2023-03-14

    Applicant: BottleVin, Inc.

    Inventor： Leslie Young Harvill

    IPC: G01J3/28 ,  G02B5/20 ,  G02B5/32 ,  G06V10/143 ,  G06V10/60 ,  G06V10/764

    CPC classification number: G01J3/2823 ,  G02B5/20 ,  G02B5/32 ,  G06V10/143 ,  G06V10/60 ,  G06V10/764

    Abstract: In some implementations, a method for authenticating and classifying a set of materials comprises: transmitting a visible range light from a light source toward a vessel containing a material sample; wherein the visible range light passes through the vessel containing the material sample, passes through the material sample, and bounces off a HOE located at a bottom of the vessel toward a camera implemented in a smartphone; receiving, by the camera of the smartphone, the visible range light that bounced off the HOE; based on a mapping of each of the visible range light onto an area of an image sensor, generating a holographic optical element that has a plurality of regions, that receives input light reflected or transmitted through a new material, and that filters the input light to a filtered light by each characteristic light spectra, and mapping the filtered light onto the image sensor's area.

    Optical filter for an optical sensor device
    50.
    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.

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