Design and application of DMD-based infrared dynamic scene projector

Fei Xie; Guofeng Zheng; Baolin Du; Peng Zhang

doi:10.1117/12.2565420

17 April 2020 Design and application of DMD-based infrared dynamic scene projector

Fei Xie, Guofeng Zheng, Baolin Du, Peng Zhang

Proceedings Volume 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications; 114558B (2020) https://doi.org/10.1117/12.2565420
Event: Sixth Symposium on Novel Photoelectronic Detection Technology and Application, 2019, Beijing, China

Abstract

As a key component of the infrared imaging semi-physical simulation system for airborne optoelectronic products, how to obtain an infrared image closer to the real scene has become the key to the entire infrared imaging system semi-physical simulation system.For infrared dynamic scene projectors, the design of the optical system plays a key role in the imaging fidelity of the infrared simulation scene and target. According to the current usage requirements, this paper designed a medium wave infrared dynamic scene projection system based on DMD. To meet the requirements of the current semi-physical simulation experiments of optoelectronic products, a 1024 × 768 DMD chip was used as the scene modulator.In view of the fact that the dynamic scene projector was to be installed on a turntable, the collimating optical system was designed with a long exit pupil distance and a large exit pupil aperture. The collimating optical system has an exit pupil distance of 600mm, an exit pupil aperture of φ56mm, and a field of view of 6°.The final designed dynamic scene projector could achieve 100Hz dynamic scene generation and could be synchronized externally. The temperature simulation range was -10°C ~ + 300°C, the minimum temperature resolution was 0.1°C, and the gray level was 256. This medium wave dynamic scene projector had been successfully applied to the debugging and testing of several optoelectronic products and semi-physical simulation experiments, which significantly improved the research and development efficiency and shortened the research and development cycle.

Citation Download Citation

Fei Xie, Guofeng Zheng, Baolin Du, and Peng Zhang "Design and application of DMD-based infrared dynamic scene projector", Proc. SPIE 11455, Sixth Symposium on Novel Optoelectronic Detection Technology and Applications, 114558B (17 April 2020); https://doi.org/10.1117/12.2565420

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KEYWORDS

Infrared imaging

Infrared radiation

Thermography

Black bodies

Digital micromirror devices

Projection systems

Imaging systems

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