Patent ID: 9618165
Date: 2017-04-11
CPC Classifications: F21K,F21V,F21Y

Claim:
1. A light emitting apparatus comprising: a ring-shaped LED-based light source; a base including a base connector; a heatsink on which the ring-shaped LED-based light source is disposed on a first end and on which the base is disposed on a second end, said heatsink arranged to dissipate heat generated by the ring-shaped LED-based light source, wherein the heat sink comprises a hollow chimney; a toroidal diffuser generating a light intensity distribution output responsive to illumination inside the diffuser; and the LED-based light source, the diffuser, the heatsink and the base being secured together as a unitary LED lamp installable in a lighting socket by connecting the base connector with the lighting socket; and the base being operatively connected with the LED-based light source in the unitary LED lamp to electrically power the LED-based light source using electrical power received at the base connector.