Patent ID: 8434897

Claim:
A lighting apparatus, comprising: a heat sink having a first surface; an LED printed circuit board having second and third opposing surfaces, wherein the second surface is disposed on the first surface of the heat sink and wherein the third surface has at least one LED light source disposed thereon; an integrated lens-housing member having a transparent upper wall disposed to receive light emitted by the at least one LED light source; a pressure-transfer member having a support structure extending generally in the direction from the LED printed circuit board to the transparent upper wall of the integrated lens-housing member and defining an aperture, a compliant member interposed between the integrated lens-housing member and the support structure of the pressure-transfer member, and a pressure-transfer surface connected to the support structure and disposed on the third surface of said LED printed circuit board proximate to the LED light source; and an optic member disposed in the aperture defined by the support structure of the pressure-transfer member, wherein the integrated lens-housing member is compressively coupled to the pressure-transfer member, such that a force exerted by the integrated lens-housing member is transferred via the pressure-transfer member to the pressure-transfer surface so as to press the LED printed circuit board toward the first surface of the heat sink to facilitate heat transfer from the LED printed circuit board to the heat sink wherein the compliant member is selected to include a compression recovery and is disposed on a top rim of the pressure-transfer member and extends generally in a direction of the transparent upper wall to provide a fourth surface to engage the transparent upper wall when the integrated lens-housing member is compressively coupled to the pressure-transfer member, and wherein the integrated lens-housing member is not compressively coupled to the optic member.