Patent ID: 9328880
Filing Date: 2016-05-03
CPC Classification: F21K,F21V,F21Y,G01J,H01J,H05B

Claim Text:
1. A method comprising: measuring a first color of light emitted from an assembled LED based illumination device that includes an amount of a first wavelength converting material and an amount of a second wavelength converting material; determining a material modification plan based at least in part on the first color of light that includes determining an amount of at least the first wavelength converting material to modify, wherein the assembled LED based illumination device, with the amount of at least the first wavelength converting material modified in accordance with the material modification plan, emits a second color of light within a predetermined tolerance of a target color point, and determining the material modification plan further includes determining locations for the modification of the amount of the first wavelength converting material based on a performance metric for the assembled LED based illumination device that is in addition to the target color point; and modifying the amount of the first wavelength converting material of the assembled LED based illumination device in accordance with the material modification plan.