Portable luminaire

Details Portable luminaire Portable luminaire

2007-10-31

2010-06-29

Ton, Anabel M (Department: 2875)

Illumination

Plural light sources

With modifier

C362S333000, C362S334000, C362S335000, C362S246000

Reexamination Certificate

active

07744246

ABSTRACT:
A portable luminaire includes an optical module, a power source and a housing. The optical module has at least one light emitting diode (LED) that emits light with a wide divergence, a non-imaging optical element and a transparent window. The non-imaging optical element (NIO) has a refractive member located around a LED optical axis and a total internal reflection member located around the refractive member. The refractive member and the total internal reflection member are integrated in a single transparent element having a mutual focal point. The NIO element collects a significant amount of light emitted by the LED with wide divergence located at the focal point to compress the collected light with high efficiency into a required pattern with a generally different angular distribution in a horizontal plane and a vertical plane, and to direct the compressed light outside of the luminaire.

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