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1188 条记录 (耗时 0.045 秒)

    Camera and method for introducing light pulses in an image stream
    7.
    发明授权
    Camera and method for introducing light pulses in an image stream 有权

    公开(公告)号：US11477357B2

    公开(公告)日：2022-10-18

    申请号：US17082117

    申请日：2020-10-28

    申请人： Axis AB

    发明人： Stefan Lundberg ,  Jonas Hjelmström

    IPC分类号： H04N5/30 ,  H04N5/225 ,  H04N9/04 ,  H04N7/18

    摘要： A camera for introducing light pulses in an image stream, comprising an image sensor arranged to capture an image stream, the image sensor comprising a plurality of pixels arranged to capture light of a first wavelength range. The at least one of the plurality of pixels is covered by a first material which is arranged to transform light of a second wavelength range to light of the first wavelength range. Further the camera comprises a first light source arranged to emit light pulses of light of the second wavelength range onto the first material, thereby causing the image sensor to register light pulses in the at least one pixel covered by the first material.

    Mm-wave short flat-field Schmidt imager using one or more diffraction grating(s) and/or Fresnel lens(s)
    8.
    发明授权
    Mm-wave short flat-field Schmidt imager using one or more diffraction grating(s) and/or Fresnel lens(s) 有权

    公开(公告)号：US11431921B2

    公开(公告)日：2022-08-30

    申请号：US16735105

    申请日：2020-01-06

    申请人： RAYTHEON COMPANY

    发明人： Lacy G. Cook

    IPC分类号： H04N5/30

    摘要： A millimeter-wave optical imaging system including an imaging detector located at a focal plane of the optical imaging system, the imaging detector being responsive to electromagnetic radiation in wavelength range of approximately 5-50 millimeters, an immersion lens directly coupled to the imaging detector and configured to focus the electromagnetic radiation onto the imaging detector, wherein the focal plane is located on a planar surface of the immersion lens and the imaging detector is directly coupled to the planar surface, a positive power primary mirror configured to reflect the electromagnetic radiation towards the immersion lens, and one of a Fresnel lens or a diffraction grating configured to receive and direct the electromagnetic radiation towards the primary mirror.