We report the operation of a video-based infrared scene projector which utilizes an electron beam-addressed membrane light modulator, or e-MLM. The projector may be described as a schlieren projector which modulates both the phase and intensity of a readout light beam. In the present work, the readout source was a He-Ne laser and the readout wavelength was 3.39 micrometers . 128 X 128 pixel images were projected at a 30 Hz frame rate, and imaged by an infrared camera. The electrical input to the projector was a standard RS-170 signal provided by a commercial video cassette player. Some of the characteristics of the projector include flickerless framing, 100:1 contrast ratio, and continuous-tone gray scale. This technology is capable of high simulated temperatures and radiance. With further development, the technology should be capable of full NTSC resolution and higher frame rates.


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    Title :

    Dynamic infrared scene projector for the 3-5μm band



    Conference:

    Characterization, Propagation, and Simulation of Sources and Backgrounds II ; 1992 ; Orlando,FL,United States


    Published in:

    Publication date :

    1992-09-21





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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