LED LAMPS

摘要

A high power LED lamp has a GaN chip placed over an AlGaInP chip. A reflector is placed between the two chips. Each of the chips has trenches diverting light for output. The chip pair can be arranged to produce white light having a spectral distribution in the red to blue region that is close to that of daylight. Also, the chip pair can be used to provide an RGB lamp or a red-amber-green traffic lamp. The active regions of both chips can be less than 50 microns away from a heat sink.

主权项

1. A light-emitting device, comprising:
a first semiconductor layer; a terminal formed on the first semiconductor layer and having a first edge, a first side and a second side opposite to the first side; and a second semiconductor layer facing the first side and the second side, and having a second edge and a third edge substantially aligned with the first edge.