Patent ID: 8269248
Filing Date: 2012-09-18
Classification: F21K,F21V,F21Y,H01L,H05K

Abstract:
1. Apparatus comprising: a high power light emitting diode (LED) unit including at least one LED die, including at least one first lead and at least one second lead, and including a heat sink interface; at least one printed circuit board including a conductive pattern configured to connect both the at least one first lead and the at least one second lead to a current source; and an interfacing portion of a heat sink structure through which a majority of heat of the heat sink interface is transmitted, the interfacing portion being directly in touching contact with a majority of heat transfer area of the heat sink interface; where the heat sink interface is electrically isolated from both the at least one first lead and the at least one second lead, and wherein the heat sink interface includes a metal substrate connected directly to the LED die via a low thermal resistance connection.