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Proceedings Paper

Optical design of a diode laser based dynamic IR scene projector
Author(s): John B. Cooper; D. Brett Beasley
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Paper Abstract

As IR sensor systems become more sophisticated, more stringent requirements are also placed on in-band IR scene projectors for hardware-in-the-loop (HWIL) applications. In general, the projector must be as good as, if not better than, the seeker in its performance. High scene fidelity, wide dynamic range, and high frame rates are now firm requirements, rather than idealized design goals. A novel type of projector system using diode lasers as sources offers several performance advantages over other currently available projector technologies. A projector of this type has been designed, built, and delivered to USAMICOM RDEC's HWIL branch under a Phase II Small Business Innovative Research (SBIR) award. The projector demonstrates high dynamic range, 128 X 128 scene size, and 8 KHz frame rates. The optical design for this system presents challenges not usually seen in projector systems, as it combines characteristics both of scanning and imaging systems. The optical system can best be described as a type of `reverse FLIR,' and uses anamorphic elements, an unusual polygon scan mirror, and a 2:1 telescopic relay.

Paper Details

Date Published: 2 June 1995
PDF: 11 pages
Proc. SPIE 2469, Targets and Backgrounds: Characterization and Representation, (2 June 1995); doi: 10.1117/12.210585
Show Author Affiliations
John B. Cooper, AEgis Research Corp. (United States)
D. Brett Beasley, AEgis Research Corp. (United States)

Published in SPIE Proceedings Vol. 2469:
Targets and Backgrounds: Characterization and Representation
Wendell R. Watkins; Dieter Clement, Editor(s)

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