US 7,560,742 B2
Semiconductor-based lighting systems and lighting system components for automotive use
Chris Wilson, Belleville (Canada); Chad D. Lambert, Belleville (Canada); Ronald O. Woodward, Yorktown, Va. (US); and Cole J. Cunnien, Canton, Mich. (US)
Assigned to Magna International Inc., (Canada)
Filed on Mar. 30, 2006, as Appl. No. 11/393,023.
Claims priority of provisional application 60/740125, filed on Nov. 28, 2005.
Prior Publication US 2007/0120137 A1, May 31, 2007
Int. Cl. H01L 33/00 (2006.01)
U.S. Cl. 257—98  [257/99; 257/E33.073; 257/E33.075] 21 Claims
OG exemplary drawing
 
1. A modular semiconductor light source assembly comprising:
a substrate;
a semiconductor light source mounted to the substrate, the substrate providing electrical power to the semiconductor light source and removing waste heat generated by the semiconductor light source;
a heat sink in thermal communication with the substrate to remove waste heat therefrom;
a light pipe having a first end adjacent the semiconductor light source, to capture substantially all of the light emitted from the semiconductor light source, and a second end; and
a lens having a general D-shape, the second end of the light pipe engaging the lens such that the light from the semiconductor light source is emitted from the lens in a pattern wherein the emitted light is spread in a first direction and is constrained in a second direction, the second direction being orthogonal to the first.