Efficient illumination systems for reduced étendue...

Details Efficient illumination systems for reduced étendue... Efficient illumination systems for reduced étendue...

2006-11-07

2006-11-07

Perkey, W. B. (Department: 2851)

Optics: image projectors

Reflector

C353S102000, C362S560000, C362S561000, C362S346000, C349S062000

Reexamination Certificate

active

07131736

ABSTRACT:
An illumination system is provided with at least a first reflecting device that has a first focal point at the arc of an arc lamp. The second focal point of the reflecting device is located at the input end of a compound parabolic concentrator (CPC). The CPC is optically coupled with an optical integrator. Light exiting the optical integrator may be used in low étendue projection systems.

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