High efficiency LED light source arrangement

Details High efficiency LED light source arrangement High efficiency LED light source arrangement

2005-10-10

2010-06-08

Ward, John A (Department: 2885)

Illumination

Plural light sources

Particular wavelength

C362S245000, C362S311120

Reexamination Certificate

active

07731388

ABSTRACT:
A light source (100) comprises a number of optical components aligned concentrically along an optical axis (115). The optical components include an array of light emitting diodes (101), a dielectric collimator (109) having surfaces configured to provide total internal reflection of light emitted from the array of diodes, and a second stage reflector (113) to further collimate the beam and which also may be based on total internal reflection by a prism structure on the outside.

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patent: 2003/0076034 (2003-04-01), Marshall et al.
patent: 2004007241 (2004-01-01), None

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