Patent ID: 7717597
Filing Date: 2010-05-18
Classification: B60Q,F21S,F21Y,G02B

Abstract:
1. A light engine comprising: at least two semiconductor light sources, each semiconductor light source having a light emitting surface; a heat sink in thermal communication with the at least two semiconductor light sources to remove waste heat therefrom; a positioning member including a set of slots and positioning apertures, the positioning member mounted with respect to the at least two semiconductor light sources such that respective positioning apertures are closely aligned with corresponding light emitting surfaces of the at least two semiconductor light sources; a set of light pipes, corresponding in number to the at least two semiconductor light sources, each light pipe including an optical portion, having a light capturing surface and a light emitting surface, and a non optical portion to mount the light pipe, the non optical portion of each light pipe engaging a corresponding one of the slots in the positioning member such that the light capturing surface of the light pipe is positioned in a respective positioning aperture over the light emitting surface of the semiconductor light source with a selected air gap between the light emitting surface and the light capturing surface, wherein said set of light pipes are arranged in a linear manner such that said light emitting surfaces are abutting and continuous with the adjacent light pine; and a retaining member mounted to the positioning member, said retaining member includes a set of biasing means to bias the light pipes into the slots.