Patent ID: 9190335
Filing Date: 2015-11-17
Classification: G01J,H01L

Abstract:
1. A method for manufacturing an LED device, comprising: measuring at least one optical property of a specific color of light obtained by converting light emitted from each respective LED chip of a plurality of LED chips through one same light conversion filter of an optical evaluation apparatus; classifying each respective LED chip of the plurality of LED chips into a plurality of ranks depending on the at least one measured optical property of the specific color of light emitted from the light conversion filter when illuminated by the respective LED chip; and calculating a mixing ratio of phosphor-containing resin corresponding to the LED chips classified into a same rank of the plurality of ranks, based on a preset correlation between the at least one optical property of the specific color of light emitted from the light conversion filter when illuminated by the LED chips classified into the same rank and an optical property of a typical LED device emitting the specific color of light, wherein the light conversion filter is housed in the optical evaluation apparatus and includes a phosphor.