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    • 1. 发明申请
    • A THERMAL IMAGING APPARATUS WITH BIAS MODULATION
    • 具有偏心调制的热成像装置
    • WO1996008104A1
    • 1996-03-14
    • PCT/US1995011097
    • 1995-09-05
    • ALLIEDSIGNAL INC.
    • ALLIEDSIGNAL INC.AGAM, UriNICHOLSON, Gary
    • H04N03/09
    • H04N5/37206G02B26/10H04N3/09H04N5/33
    • A thermal imaging apparatus including a non-linear optomechanical scanner receiving radiation from a scene and directing it onto an image plane, the scanner defining a non-linear scan velocity in the image plane, a SPRITE detector disposed in the image plane including a first and second spaced contact and including apparatus for applying a bias voltage across the contacts in both directions thereby compensating for the non-linearity of the scanner and further taking into account the phase lag due to the detector and associated electronic circuitry and apparatus for filtering out the bias voltage from the output of the detector so that the output signal consists only of the signal due to photon flux.
    • 一种热成像设备,包括非线性光学机械扫描器,其接收来自场景的辐射并将其引导到图像平面上,所述扫描仪限定所述图像平面中的非线性扫描速度;设置在所述图像平面中的SPRITE检测器,包括第一和 第二间隔接触并且包括用于在两个方向上跨接触件施加偏置电压的装置,从而补偿扫描器的非线性,并进一步考虑由于检测器和相关联的电子电路和用于滤除偏置的装置的相位滞后 电压从检测器的输出,使得输出信号仅由信号由光子通量组成。
    • 2. 发明申请
    • MULTIPLE FIELD OF VIEW SENSOR
    • 多视场感应器
    • WO1986003916A1
    • 1986-07-03
    • PCT/US1985002560
    • 1985-12-20
    • HUGHES AIRCRAFT COMPANYPINES, Michael, Y.DEMAS, Themi, H.SCHAEFER, Robert, D.
    • HUGHES AIRCRAFT COMPANY
    • H04N03/09
    • H04N3/09G02B26/10
    • Images of two fields of view of one or two scenes in a radiation sensor are generated by use of a single detector and common signal process circuitry. The two imaged fields of view, typically a narrow view and a wide view, are provided by two independent telescopes (18, 20), and are combined by use of a field-of-view switch (32) comprising a chopper wheel (34) or an optical switch in synchronized operation with a mirror scanner (22). The same field-of-view switch is employed in performing detector non-uniformity correction functions, such as automatic responsivity control and direct current restoration. Folding optics couples scanned radiation from the scanner to the switch. An additional field of view may be introduced by displacing a folding mirror of the folding optics. Also, a portion of a reflecting surface of the switch may be tilted to admit a reference beam of radiation useful in performing the functions of responsivity control and D.C. restoration.
    • 通过使用单个检测器和公共信号处理电路来生成辐射传感器中的一个或两个场景的两个视场的图像。 通过两个独立的望远镜(18,20)提供两个成像视场(通常为窄视图和宽视角),并且通过使用包括斩波轮(34)的视场开关(32)来组合 )或与镜像扫描器(22)同步操作的光学开关。 在执行检测器不均匀性校正功能(例如自动响应控制和直流恢复)中采用相同的视野开关。 折叠光学器件将扫描仪的扫描辐射耦合到开关。 可以通过移动折叠光学器件的折叠反射镜来引入另外的视野。 此外,开关的反射表面的一部分可以倾斜以允许用于执行响应度控制和直流恢复功能的参考辐射光束。