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Proceedings Paper

Improved LED backlight with unique color and intensity control and NVIS capability
Author(s): Robert Herman; Pete Zagar; Ted Ulijasz; Hans C. Hansen; Fred Ellner
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Paper Abstract

Currently deployed conventional flat panel AMLCD displays employ fluorescent lamp backlights to achieve the required lighting levels for cockpits in high performance aircraft. Advances have been made in backlighting technology by replacing fluorescent lamps with high performance LEDs. However, these new LED-based backlights are lacking in control of color and luminance intensity especially when related to NVIS requirements in a cockpit. This paper describes a unique integration of LED, electronic, and optical components to meet the requirements of high performance aircraft over their extreme range of operating environments. The LED-based backlight utilizes state-of-art components to enable daylight, night, and NVIS requirements to be implemented in a simple cost-effective package. The performance results presented highlight the advantages of this new design when compared to currently available backlighting designs. Techniques as described in section 2 of this paper are covered under patent application to the US and International Patent Offices.

Paper Details

Date Published: 22 May 2006
PDF: 8 pages
Proc. SPIE 6225, Defense, Security, Cockpit, and Future Displays II, 62250B (22 May 2006); doi: 10.1117/12.669395
Show Author Affiliations
Robert Herman, Astronautics Corp. of America (United States)
Pete Zagar, Astronautics Corp. of America (United States)
Ted Ulijasz, Astronautics Corp. of America (United States)
Hans C. Hansen, Astronautics Corp. of America (United States)
Fred Ellner, Astronautics Corp. of America (United States)


Published in SPIE Proceedings Vol. 6225:
Defense, Security, Cockpit, and Future Displays II
Eric W. Forsythe; James C. Byrd; Henry J. Girolamo; Daniel D. Desjardins, Editor(s)

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