Patent ID: 9528666
Filing Date: 2016-12-27
CPC Classification: F21K,F21V,F21Y,H01L

Claim Text:
1. An LED based illumination device comprising: a plurality of LEDs; an optically transmissive element disposed above the plurality of LEDs, the optically transmissive element includes a first amount of a first wavelength converting material configured to change a wavelength of an amount of light emitted by the plurality of LEDs; and an LED mounting board of thermally conductive material having a first side and a second side that is opposite the first side, the plurality of LEDs mounted on the first side of the LED mounting board, the LED mounting board having a protrusion of the LED mounting board that projects from the first side of the LED mounting board surrounding the plurality of LEDs and an indentation opposite the protrusion in the second side of the LED mounting board, wherein the LED mounting board is coupled to the optically transmissive element at the protrusion.