Infrared video camera system with uncooled focal plane array and
radiation shield
    1.
    发明授权
    Infrared video camera system with uncooled focal plane array and radiation shield 失效
    红外摄像机系统具有非冷却焦平面阵列和辐射屏蔽

    公开(公告)号:US6144031A

    公开(公告)日:2000-11-07

    申请号:US845124

    申请日:1997-04-21

    摘要: An infrared video camera system comprises an uncooled infrared sensor mounted and a thermally conductive thin walled radiation shield for shielding radiation from reaching an active surface of the uncooled infrared sensor. A TEC maintains the sensor active surface and the radiation shield at a substantially constant temperature. The uncooled infrared sensor and radiation shield are further housed in a hollow thermally conductive vacuum cover which is vacuum sealed with a base assembly and includes a vacuum sealed infrared transparent window in an aperture at a top end of the vacuum cover for allowing infrared radiation to reach the active surface and for forming a vacuum chamber enclosing the infrared sensor and radiation shield. A relay optical cell mounted to a camera body comprises at least one optical element for relaying an image formed at its entrance onto the active surface. An imaging optical assembly is interchangeably mounted to the relay optical cell and comprises at least one optical element for imaging an infrared scene to be imaged onto the entrance aperture of the relay cell. A plurality of different field of view imaging optical assemblies are interchangeably mounted without substantially changing the field of view of the sensor active surface.

    摘要翻译: 红外摄像机系统包括安装的非冷却红外传感器和用于屏蔽辐射的热传导性薄壁辐射屏蔽层,以抵达非制冷红外传感器的有效表面。 TEC将传感器有效表面和辐射屏蔽保持在基本恒定的温度。 未冷却的红外传感器和辐射屏蔽件进一步容纳在中空导热真空盖中,该绝热真空盖用基座组件真空密封,并且在真空盖的顶端的孔中包括真空密封的红外透明窗,以允许红外辐射到达 活性表面和用于形成包围红外传感器和辐射屏蔽的真空室。 安装到相机主体的中继光学单元包括至少一个用于将其入口处形成的图像中继到活动表面上的光学元件。 成像光学组件可互换地安装到中继光学单元,并且包括用于对待成像到中继单元的入口孔上的红外场景成像的至少一个光学元件。 多个不同的视野成像光学组件可互换地安装,而基本上不改变传感器有源表面的视场。