中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

122 records (took 0.02 seconds)

    Optical non-uniformity correction (NUC) for active mode imaging sensors
    42.
    发明授权
    Optical non-uniformity correction (NUC) for active mode imaging sensors 有权
    用于主动模式成像传感器的光学非均匀性校正（NUC）

    公开(公告)号：US09473768B2

    公开(公告)日：2016-10-18

    申请号：US14476199

    申请日：2014-09-03

    Applicant: Raytheon Company

    Inventor： Gerald P. Uyeno ,  Sean D. Keller ,  David D. Acton

    IPC: A62B1/04 ,  H04N17/00

    CPC classification number: H04N17/002 ,  A62B1/04 ,  H04N5/2176 ,  H04N5/2256

    Abstract: Optical non-uniformity correction (NUC) of an active mode image sensor scans a spot over a portion of the sensor's FOV within a frame time so that the net response of the sensor is approximately uniform. Scanning the laser spot simultaneously performs the NUC and provides the illumination of the FOV for imaging the scene. The laser spot is suitably scanned in an overlapping geometrical pattern relative to a line-of-sight of the sensor's imager while modulating a spacing between overlapping laser spots, the size of the spot, a dwell time of the laser spot or the energy of the laser spot or combinations thereof as a function of the scan position of the laser spot so that the laser illumination is inversely proportional to the imager response at the scan position of the laser spot. A liquid crystal waveguide may be used to form and scan the small laser spot over the FOV within the frame time.

    Abstract translation: 活动模式图像传感器的光学非均匀性校正（NUC）在帧时间内扫描传感器FOV的一部分上的点，使得传感器的净响应近似均匀。 扫描激光点同时执行NUC并提供用于成像场景的FOV的照明。 激光光斑相对于传感器成像器的视线适当地以重叠的几何图案扫描，同时调制重叠的激光点之间的间距，斑点的尺寸，激光光斑的停留时间或者激光点的能量 激光点或其组合作为激光光斑的扫描位置的函数，使得激光照射与激光​​光斑的扫描位置处的成像器响应成反比。 可以使用液晶波导在帧时间内在FOV上形成和扫描小的激光点。

    Optically-steered RF imaging receiver using photonic spatial beam processing
    44.
    发明授权
    Optically-steered RF imaging receiver using photonic spatial beam processing 有权

    公开(公告)号：US11664905B2

    公开(公告)日：2023-05-30

    申请号：US17465706

    申请日：2021-09-02

    Applicant: Raytheon Company

    Inventor： Gerald P. Uyeno ,  Sean D. Keller ,  Benn H. Gleason

    IPC: H04B10/61 ,  H04B1/16 ,  H04B10/2575

    CPC classification number: H04B10/6165 ,  H04B1/16 ,  H04B10/25759 ,  H04B2210/006

    Abstract: An RF imaging receiver using photonic spatial beam processing is provided with an optical beam steerer that directs the modulated optical signals to steer the composite optical signal and move the location of the spot on the optical detector array. The optical beam steerer may be implemented with one or more phase-dependent steering units in which each unit includes a waveplate and polarization grating to steer the modulated optical signals. The optical beam steerer may be configured to act on the individual modulated optical signals to induce individual phase delays that produce a phase delay with a linear term, and possibly spherical or aspherical terms, to steer the composite optical signal in which case the optical beam steerer may be implemented, for example, with an optical phase modulator and optical antenna in each optical channel which together form an OPA, a Risley prism or a liquid crystal or MEMs spatial light modulator.

    OPTICALLY-STEERED RF IMAGING RECEIVER USING PHOTONIC SPATIAL BEAM PROCESSING
    46.
    发明申请
    OPTICALLY-STEERED RF IMAGING RECEIVER USING PHOTONIC SPATIAL BEAM PROCESSING 有权

    公开(公告)号：US20230110986A1

    公开(公告)日：2023-04-13

    申请号：US17465706

    申请日：2021-09-02

    Applicant: Raytheon Company

    Inventor： Gerald P. Uyeno ,  Sean D. Keller ,  Benn H. Gleason

    IPC: H04B10/2575 ,  H04B10/2569 ,  H04B1/16

    Abstract: An RF imaging receiver using photonic spatial beam processing is provided with an optical beam steerer that directs the modulated optical signals to steer the composite optical signal and move the location of the spot on the optical detector array. The optical beam steerer may be implemented with one or more phase-dependent steering units in which each unit includes a waveplate and polarization grating to steer the modulated optical signals. The optical beam steerer may be configured to act on the individual modulated optical signals to induce individual phase delays that produce a phase delay with a linear term, and possibly spherical or aspherical terms, to steer the composite optical signal in which case the optical beam steerer may be implemented, for example, with an optical phase modulator and optical antenna in each optical channel which together form an OPA, a Risley prism or a liquid crystal or MEMs spatial light modulator.

    SENSOR FOR DEGRADED VISUAL ENVIRONMENT
    49.
    发明申请
    SENSOR FOR DEGRADED VISUAL ENVIRONMENT 有权

    公开(公告)号：US20230006348A1

    公开(公告)日：2023-01-05

    申请号：US17940910

    申请日：2022-09-08

    Applicant: RAYTHEON COMPANY

    Inventor： Gerald P. Uyeno ,  Sean D. Keller ,  Benn Gleason

    IPC: H01Q3/26 ,  H04B10/40 ,  G02B27/10 ,  G01S7/4915

    Abstract: A sensing system. In some embodiments, the system includes a first imaging radio frequency receiver, a second imaging radio frequency receiver, a first optical beam combiner, a first imaging optical receiver, a second optical beam combiner, and an optical detector array. The first optical beam combiner may be configured to combine optical signals of the imaging radio frequency receivers. The second optical beam combiner may be configured to combine the optical signals of the imaging radio frequency receivers, and the optical signal of the first imaging optical receiver.

Patent Agency Ranking