Patent ID: 7549769
Filing Date: 2009-06-23
Classification: F21V,F21Y,G02B,H01L

Abstract:
1. A Light Emitting Diode (LED) lens for a backlight, comprising: a LED light source; a lens body configured such that the LED light source is accommodated in a lower portion thereof, and light emitted from the LED light source is radiated in vertical and lateral directions of the lens body; and a beam shaping element fastened to a top of the lens body and configured to adjust radiation angles of light beams radiated through an upper surface of the lens body; wherein, the lens body emits a major portion of the LED light in lateral direction and a minor portion of the LED light in vertical direction, and the lens body has a dome-shaped surface thereon to collimate the minor portion of the LED light toward the beam shaping element.