US 12,364,071 B2
Light emitting device including multiple photoluminescence materials
Tao Xu, Fremont, CA (US)
Assigned to Bridgelux, Inc., Fremont, CA (US)
Filed by Bridgelux, Inc., Fremont, CA (US)
Filed on Feb. 7, 2024, as Appl. No. 18/435,530.
Application 17/222,077 is a division of application No. 16/429,303, filed on Jun. 3, 2019, granted, now 10,971,659, issued on Apr. 6, 2021.
Application 18/435,530 is a continuation of application No. 17/222,077, filed on Apr. 5, 2021, granted, now 11,923,484.
Prior Publication US 2024/0243236 A1, Jul. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H10H 20/851 (2025.01); H01L 25/075 (2006.01); H10H 20/01 (2025.01); H10H 20/857 (2025.01)
CPC H10H 20/8513 (2025.01) [H01L 25/0753 (2013.01); H10H 20/0361 (2025.01); H10H 20/857 (2025.01)] 14 Claims
OG exemplary drawing
 
1. A light emitting device, comprising:
a plurality of first LEDs;
a plurality of second LEDs;
a first photoluminescence material for generating light having a peak emission wavelength in a range from 500 nm to 590 nm; and
a second photoluminescence material for generating light having a peak emission wavelength in a range from 600 nm to 650 nm;
wherein the first LEDs and the second LEDs are for generating light having a dominant wavelength in a range from 440 nm to 480 nm; and
wherein the first LED is covered by the first photoluminescence material, and the second LED is covered by the second photoluminescence material and the first photoluminescence material.