Patent ID: 7270447
Filing Date: 2007-09-18
Classification: F21V,F21Y,G02B,H01L,Y10S

Abstract:
1. A lens for an LED, comprising: a lens body having a centerplane dividing the lens body into symmetric halves, each half having an angular base having a first reflection surface extending substantially perpendicular from the centerplane at a first junction of the lens body and centerplane, the first junction being substantially proximate a first emission point of the LED, and a second reflection surface extending from a distal end of said first reflection surface at an angle having a range of 130 to 150 degrees measured from a line connecting the distal end and first junction, wherein a plane extending along the second reflection surface intersects a distal edge of the half at an intersection point, the intersection point being at an angle having a range of 64 to 74 degrees from the centerplane, measured about the first junction, wherein light diffused by the lens provides for substantially uniform mixing of at least two different colors of light emitted by a multi-color LED apparatus disposed at the first emission point.