Patent ID: 7989839
Filing Date: 2011-08-02
Classification: A61C,F21K,F21V,F21Y,F28D,H01L,H05K

Abstract:
1. A lighting device comprising: a conductive patterned circuit material layer that defines a first opening; a first heat sink; a light emitting device mounted to the first heat sink, the light emitting device configured to be located within the first opening when mounted to the first heat sink and to be electrically connected to the conductive patterned circuit material layer; and a second heat sink that directly contacts the conductive patterned circuit material layer, the second heat sink defining a second opening configured to receive the first heat sink, wherein at least one of the first heat sink and the second heat sink is mounted to a heat pipe wherein the heat pipe includes an evaporating end and a condensing end, wherein the light emitting device is configured to emit a cone of light having a cone axis, wherein the at least one of the first heat sink and the second heat sink is mounted to the evaporating end, wherein the heat pipe is configured such that the fluid in the evaporating end vaporizes and flows to the condensing end when the evaporating end is exposed to heat produced by the light emitting device, wherein the heat pipe is configured such that the vaporized fluid condenses when it reaches the condensing end and returns to the evaporating end, and wherein the light ray along the cone axis moves in a substantially parallel and opposite direction to the thermal energy moving along the at least a portion of the vapor cavity axis.