Illumination system and method for recycling light to...

Illumination – Light fiber – rod – or pipe – Light emitting diode

Reexamination Certificate

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C362S307000, C362S308000, C362S296010, C362S800000

Reexamination Certificate

active

07976204

ABSTRACT:
An illumination system for increasing the brightness of a light source comprises an optical recycling device coupled to the light source, preferably light emitting diode (LED), for spatially and/or angularly recycling light. The optical recycling device spatially recycles a portion of rays of light emitted by the LED back to the light source using a reflector or mirror and/or angularly recycles high angle rays of light and transmits small angle rays of light, thereby increasing the brightness of the light source's output.

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