Optical spectrometer and method for spectrally resolved two-dimensional imaging of an object

    公开(公告)号:US12152937B2

    公开(公告)日:2024-11-26

    申请号:US17623291

    申请日:2020-06-18

    Applicant: Diego Guénot

    Abstract: The disclosure relates to an optical spectrometer for spectrally resolved two-dimensional imaging of an object, comprising a dispersing device arranged to disperse radiation from object, a multi-lens array arrangement arranged to receive the dispersed radiation from the dispersing device, a two-dimensional detector arranged to receive 5 the dispersed radiation as directed by the multi-lens array arrangement, wherein the optical spectrometer further comprises a collimating arrangement for collimating the radiation from object before the radiation reaches the dispersing device, the collimating arrangement comprising a diffusing plate for diffusing the radiation and an optical micro-channel arranged to receive the diffused radiation comprising a plurality 10 of parallel and linear optical micro-channels directed towards the dispersing device. The disclosure further relates to a method for spectrally resolved two-dimensional imaging of an object.

    Limitation of Noise on Light Detectors using an Aperture

    公开(公告)号:US20240385320A1

    公开(公告)日:2024-11-21

    申请号:US18429644

    申请日:2024-02-01

    Applicant: Waymo LLC

    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.

    SYSTEM AND METHOD FOR QUANTUM ABSORPTION SPECTROSCOPY

    公开(公告)号:US20240385043A1

    公开(公告)日:2024-11-21

    申请号:US18694232

    申请日:2022-09-08

    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.

    SPECTROMETER MODULE
    58.
    发明申请

    公开(公告)号:US20240385042A1

    公开(公告)日:2024-11-21

    申请号:US18789971

    申请日:2024-07-31

    Abstract: A spectroscopic module includes a plurality of beam splitters that are arranged along an X direction; a plurality of bandpass filters disposed on one side in a Z direction with respect to the plurality of beam splitters facing the plurality of beam splitters, respectively; a light detector disposed on the one side in the Z direction with respect to the plurality of bandpass filters and including a plurality of light receiving regions facing the plurality of bandpass filters, respectively; a first support body supporting the plurality of beam splitters; and a second support body supporting the plurality of bandpass filters. The second support body includes a support portion in which a support surface is formed so as to be open to the one side in the Z direction. The plurality of bandpass filters are disposed on the support surface.

    SENSORS FOR MEASURING PRESSURE AND TEMPERATURE

    公开(公告)号:US20240385040A1

    公开(公告)日:2024-11-21

    申请号:US18199230

    申请日:2023-05-18

    Abstract: A Fabry-Pérot sensor assembly includes an optical element defining a Fabry-Pérot optical cavity therein. A ferrule is affixed to the optical element. The ferrule is configured to physically connect to an optic fiber, aligning the optic fiber optically with the cavity. The optical element includes a MgAl2O4 spinel or aluminum oxynitride Al23N27O5. A method of making an Fabry-Pérot optical cavity includes using a ceramic processing etching process to remove material from a first optical member to form the cavity therein, leaving a rim of the optical member surrounding the cavity peripherally. The method includes affixing a second optical member to the rim to enclose the cavity.

    Sliding door assembly for an ICP torch box

    公开(公告)号:US12146791B2

    公开(公告)日:2024-11-19

    申请号:US17597850

    申请日:2020-07-30

    Abstract: A sliding door assembly (50) for an inductively coupled plasma torch box (40) reduces the risk of heat related injuries and facilitates the handling of the torch box. The door assembly (50) comprises a door and a guiding mechanism (6) for allowing movement of the door in a first direction along an opening (45) of the torch box (40) so as to be able to open and close the torch box, and allowing movement of the door in a second direction, substantially perpendicular to the first direction, so as to move the door or at least a part thereof towards the opening when closing the torch box. The door may comprise an inner door panel interconnected with an outer door panel, so that only the inner door panel moves in the second direction, towards the opening (45) of the torch box (40) to tightly close it, while the outer door panel can maintain a safe temperature during operation.

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