Nonimaging light source

Details Nonimaging light source Nonimaging light source

G - Physics

02

B

240/127, 240/167

G02B 5/10 (2006.01) F21S 8/10 (2006.01) F21V 7/00 (2006.01) F21V 7/09 (2006.01) G02B 5/02 (2006.01)

Patent

CA 1304057

Abstract The principles of non-imaging optics, rather than imaging optics, are used to provide a high power LED illumination lamp that has a specified limited viewing angle. A compound parabolic flux extractor extracts and concentrates light emitted by an LED chip and a light pipe continues the concentration into the specified viewing angle. A lens or a diffusant may be used to modify the light output of the lamp. A light constructed as an array of the lamps is suitable for use as a automobile external light such as a center high mounted stop light.

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