Optical device and method
    5.
    发明授权

    公开(公告)号:US12098954B2

    公开(公告)日:2024-09-24

    申请号:US17639924

    申请日:2020-09-04

    CPC classification number: G01J3/2823 G01J3/0229 G01J3/0248

    Abstract: A hyperspectral imaging device (100) is provided comprising an input (102) for receiving a light field from a scene (106), an encoder (108), at least one dispersive element (110, 112), at least one array detector (114, 110) and a processor (118). The encoder (108) is arranged to receive at least a portion of the light field from the input (102) and transform it to provide a first and second encoded light (120, 122) field having different spatial patterns. At least one dispersive element (110, 112) is arranged to apply spectral shear to the first and second encoded light fields (120, 122) respectively to provide first and second sheared light fields (124, 126). At least one array detector (114, 116) is arranged to detect the first and second sheared light fields (124, 126). The processor (118) is arranged to process an output from the at least one array detector (114, 116) to determine a datacube (128) corresponding to a hyperspectral image of the scene.

    HYPERSPECTRAL IMAGE SENSOR AND SYSTEM EMPLOYING THE SAME

    公开(公告)号:US20240280406A1

    公开(公告)日:2024-08-22

    申请号:US18443488

    申请日:2024-02-16

    CPC classification number: G01J3/2823 G01J3/45 G01J2003/284

    Abstract: Provided are a hyperspectral image sensor and a hyperspectral imaging system including the hyperspectral image sensor. The hyperspectral image sensor includes a light-receiving sensor that is pixelated, and a plurality of metasurfaces that are arranged in front of the light-receiving sensor apart from each other in a stacking direction, and each have an array of meta-atoms. At least one of the plurality of metasurfaces is a random metasurface in which the meta-atoms are disorderly arranged, and a speckle pattern is formed on a sensing surface of the light-receiving sensor by the plurality of metasurfaces.

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