Patent ID: 8338839
Filing Date: 2012-12-25
Classification: F21K,F21S,F21Y,H01L,H01S

Abstract:
1. A lighting device comprising: a base substrate comprising an indented surface and a base surface opposing the indented surface, wherein the indented surface comprises a plurality of indentations, the indentations being spaced apart from one another; a cover substrate comprising a light emitting surface and a cover surface, the cover surface of the cover substrate being in contact with the indented surface of the base substrate; a plurality of non-packaged light emitting diode (LED) dies being disposed between the base substrate and the cover substrate and in respective indentations such that during operation of the lighting device a peak intensity of light emitted by the non-packaged LED dies is output through the light emitting surface of the cover substrate in a first direction; and a first set of conductors and a second set of conductors configured to provide power to the non-packaged LED dies, where the non-packaged LED dies are connected to the first set of conductors and the second set of conductors without wires, and the first set of conductors is formed on the indented surface of the base substrate and the second set of conductors is formed on the cover surface of the cover substrate, wherein at least a first portion of the first set of conductors are physically connected to at least a first portion of the second set of conductors.