Patent ID: 7153002
Filing Date: 2006-12-26
Classification: F21V,F21Y,G02B,H01L

Abstract:
1. A lens for LED (light emitting diode) light sources, comprising: a lens body defining an inner space therein and the inner space is symmetrical about a center axis of the lens, comprising: a bottom surface; an upper reflective surface symmetrical about the center axis of the lens and angled with respect to the center axis; a side surface extending from an edge of the upper reflective surface to an edge of the bottom surface; and an inner reflective surface provided on at least a portion of a boundary surface of the inner space, symmetrical about the center axis of the lens and inclined at a predetermined angle, so that light entering the lens from an LED light source through the bottom surface is reflected by the upper reflective surface or the inner reflective surface and exits the lens through the side surface in a direction substantially perpendicular to the center axis of the lens.