Mirror coating, and method of use, to reduce polarization sensitivity

    公开(公告)号:US10809517B2

    公开(公告)日:2020-10-20

    申请号:US15786860

    申请日:2017-10-18

    Abstract: An imaging telescope including a first mirror configured to receive electromagnetic radiation having a first polarization state and to reflect electromagnetic radiation having a second polarization state, the first mirror including a multi-layer dielectric (MLD) coating configured to convert the first polarization state to the second polarization state, and a plurality of reflecting configured to receive the electromagnetic radiation having the second polarization state reflected from the first mirror and to reflect and focus the electromagnetic radiation having the second polarization state onto an image plane of the imaging telescope.

    Polarized pixelated filter array with reduced sensitivity to misalignment for polarimetric imaging

    公开(公告)号:US10168542B2

    公开(公告)日:2019-01-01

    申请号:US14836305

    申请日:2015-08-26

    Abstract: Polarized pixelated filter sub-array is reconfigured to reduce sensitivity to misalignment. The condition number increases more slowly than the standard polarized pixelated filter sub-array as the misalignment increases. In different embodiments, the filter sub-array is configured such that the condition number has a finite bound at ½ pixel misalignment. The angular values of the polarizer filter array are determined to minimize the sensitivity of the condition number of the data reduction matrix to misalignment. This can be achieved by selecting angular values that minimize the expected value of the condition number E(CN) over the range of misalignment.

    OPTICAL POSITION ENCODER
    14.
    发明申请
    OPTICAL POSITION ENCODER 有权
    光学位置编码器

    公开(公告)号:US20160103000A1

    公开(公告)日:2016-04-14

    申请号:US14510180

    申请日:2014-10-09

    CPC classification number: G01D5/30 G01D5/341 H04N5/33

    Abstract: Optical position encoding mechanisms and methods for use in reimaged optical imaging systems. In one example, a reimaged optical imaging system includes an imaging detector, an optical component, and at least one light source coupled to the optical component and configured to be reimaged onto the imaging detector, wherein a position of an image of the at least one light source at the imaging detector encodes a position of the optical component relative to the imaging detector.

    Abstract translation: 用于再成像光学成像系统的光学位置编码机构和方法。 在一个示例中,重新成像的光学成像系统包括成像检测器,光学部件和耦合到光学部件并且被配置为被重新成像到成像检测器上的至少一个光源,其中至少一个 成像检测器处的​​光源编码光学部件相对于成像检测器的位置。

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