Radiant energy – Radiant energy generation and sources – With radiation modifying member
Patent
1996-09-05
1998-01-20
Nguyen, Kiet T.
Radiant energy
Radiant energy generation and sources
With radiation modifying member
H05B 326
Patent
active
057104310
ABSTRACT:
An outdoor scene simulating apparatus for testing an infrared imaging dev comprising an infrared source, which emits infrared energy along a first optical path. Positioned downstream from the infrared source along the first optical path is a metallic substrate which has on its front surface a simulated outdoor scene. The simulated outdoor scene is formed by coating a portion of the metallic substrate with a black ink which absorbs infrared radiation. A thermal mass abuts the substrate to provide a cooling path between the thermal mass and the substrate. The thermal mass cools the metallic substrate and black ink of the simulated outdoor scene to temperatures below ambient temperature reducing infrared emissions from the metallic substrate and black ink of the simulated outdoor scene. Infrared energy reflected from the metallic substrate is directed along a second optical path to a collimator. The collimator collects the infrared radiation reflected from on metallic substrate and then redirects the infrared radiation as a collimated beam of infrared radiation along a third optical path to the lens of the infrared imager being tested.
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Kalmbaugh David S.
Nguyen Kiet T.
Sliwka Melvin J.
The United States of America as represented by the Secretary of
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