16 May 2006 Novel photonic infrared scene generation technique
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Abstract
We report here a novel photonic infrared scene generator based on integration of IR fiber with MEMS attenuation technologies. We employed an infrared transmission fiber image bundles with one end coupled to an IR light source and the other end for display. A robust electromagnetic actuated MEMS attenuator array is incorporated into each fiber to individually modulate the IR light intensity, forming a 2D and high grayscale scene. The design is versatile, promising to realize the desirable performance specification for IR scene generator. Using an IR lamp as the broadband light source, our scene generator covers the wavelength range from 2~14μm, and provides the sufficient IR power for the high apparent temperature. We reported here a 4×4 format array demonstration unit. This performances achieved to date include: high apparent temperature of 1700°C, high dynamic range over 40dB, high pixel isolation over 40dB, cool ambient background, and the moderate response speed of a few ms as well as continuous gray-scale without flick-ness.
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Jing Zhao, Guanghai Jin, "Novel photonic infrared scene generation technique", Proc. SPIE 6208, Technologies for Synthetic Environments: Hardware-in-the-Loop Testing XI, 62080R (16 May 2006); doi: 10.1117/12.666575; https://doi.org/10.1117/12.666575
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