Light emitting device

Details Light emitting device Light emitting device

F - Mech Eng,Light,Heat,Weapons

21

V

F21V 5/04 (2006.01) F21K 99/00 (2010.01) H01L 33/00 (2010.01)

Patent

CA 2703383

A light emitting device, method and lens, the device comprising an LED emitting a beam of light and a transparent light conditioning lens concentric with the beam of light and through which the beam of light travels. The lens comprises a light concentrating part and a light diffusing part. The concentrating part concentrates a first portion of the light to form a first beam of light having a narrow angle of dispersion, preferably of less than about 10 degrees and the light diffusing part diffuses a second portion of the light to form a second beam of light concentric with the first beam and having a wide angle of dispersion greater than the narrow angle of dispersion, preferably greater than about 70 degrees. An intensity of the first beam is greater than an intensity of the second beam.

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