METHOD AND APPARATUS FOR USING TEMPERATURE CONTROLLED VARIABLE DIAPHRAGMS OR SWAPPABLE FIXED APERTURES WITH INFRARED CAMERAS
    1.
    发明申请
    METHOD AND APPARATUS FOR USING TEMPERATURE CONTROLLED VARIABLE DIAPHRAGMS OR SWAPPABLE FIXED APERTURES WITH INFRARED CAMERAS 有权
    使用温度控制的可变膜片或可逆固定孔径与红外摄像机的方法和装置

    公开(公告)号:US20040238741A1

    公开(公告)日:2004-12-02

    申请号:US10250016

    申请日:2003-05-28

    Abstract: A continuously variable diaphragm or swappable fixed aperture for use in thermal infrared cameras, which aperture or diaphragm can be cooled to cryogenic temperatures. The invention contemplates mounting aperture control means, if necessary, in a vacuum or extending the control mechanism through a vacuum in a thermally isolated manner to avoid radiation load on the photocell. The inventive method implements such a diaphragm and control system. The invention makes possible the object of using a single thermal infrared camera under a wide variety of target-scene radiation conditions that may be rapidly changing, with interchangeable or zoom camera lenses requiring matching or different size cold stops, and under other such dynamic situations.

    Abstract translation: 用于热红外摄像机的可连续变化的隔膜或可插拔固定孔,该孔或隔膜可以冷却至低温。 本发明考虑如果需要,在真空中安装孔径控制装置,或者以热隔离方式通过真空延伸控制机构,以避免光电池上的辐射负载。 本发明的方法实现了这种隔膜和控制系统。 本发明使得在可能快速变化的各种目标场景辐射条件下使用单个热红外摄像机成为可能,具有需要匹配或不同尺寸的冷停止的可互换或变焦相机镜头以及在其他这样的动态情况下。

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