29 March 1996 Intense pinhole light source improves image quality of reflective and transmissive display systems
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Abstract
Modern projection light sources must be capable ofhandling obstacles such as heat and light concentration. This paper shall review the patented Cheng Orthogonal Parabolic Reflector (OPR®) and how it resolves these problems. High intensity discharge (HID) lamps may be optimized using the new compound OPR® designed together all light from their most intensely radiating areas to a 3mm point. Performance ofthis system is up to 100% better than existing systems for projection. This technology may be applied to a diverse combination oflamps and projection applications for increased performance and reduced cost.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Dah Yu Cheng, Dah Yu Cheng, "Intense pinhole light source improves image quality of reflective and transmissive display systems", Proc. SPIE 2650, Projection Displays II, (29 March 1996); doi: 10.1117/12.237019; https://doi.org/10.1117/12.237019
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