Dynamic infrared scene projector for the 3-5um band

Thomas N. Horsky; George J. Genetti; Craig M. Schiller; Robert P. Jurgilewicz; Cardinal Warde

doi:10.1117/12.137872

21 September 1992 Dynamic infrared scene projector for the 3-5μm band

Thomas N. Horsky, George J. Genetti, Craig M. Schiller, Robert P. Jurgilewicz, Cardinal Warde

Proceedings Volume 1687, Characterization, Propagation, and Simulation of Sources and Backgrounds II; (1992) https://doi.org/10.1117/12.137872
Event: Aerospace Sensing, 1992, Orlando, FL, United States

Abstract

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.

Citation Download Citation

Thomas N. Horsky, George J. Genetti, Craig M. Schiller, Robert P. Jurgilewicz, and Cardinal Warde "Dynamic infrared scene projector for the 3-5μm band", Proc. SPIE 1687, Characterization, Propagation, and Simulation of Sources and Backgrounds II, (21 September 1992); https://doi.org/10.1117/12.137872

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