Patent ID: 11923484
Assignee: BRIDGELUX, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A method of manufacturing a white light emitting device, comprising the steps of:
providing a substrate having a continuous wall defined around the perimeter thereof, the wall having a top edge;
providing first LEDs and second LEDs operable to generate excitation light having a dominant wavelength in a range from 440 nm to 480 nm;
electrically connecting the first and second LEDs to the substrate;
providing a first photoluminescence material which generates light having a peak emission wavelength in a range from 500 nm to 590 nm;
providing a second photoluminescence material which generates light having a peak emission wavelength in a range from 600 nm to 650 nm;
depositing the second photoluminescence material as a first layer over and into direct contact with the second LEDs; and
depositing the first photoluminescence material as a second layer, separate from the first layer, over the first LEDs and second LEDs, wherein the second layer substantially extends to the top edge of the wall.