High brightness illumination device with incoherent solid...

Details High brightness illumination device with incoherent solid... High brightness illumination device with incoherent solid...

2005-03-14

2010-06-22

O'Shea, Sandra L (Department: 2885)

Illumination

Plural light sources

With modifier

C362S612000, C362S628000, C362S244000, C362S311060, C362S329000, C362S606000, C362S610000, C362S555000, C362S560000, C362S800000

Reexamination Certificate

active

07740375

ABSTRACT:
An illumination light source includes an incoherent solid state light source adapted to emit light over at least one light emission surface and having a total light emission surface area S0; a light circulation device including at least one light receiving surface adapted to receive the light from the incoherent solid state light source, and a light extraction area having a first surface area S1; and a light extraction device for extracting the light from the light circulation device at the light extraction area, wherein S1<S0. Accordingly, the apparent brightness of the light is increased by distributing it over a smaller area.

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