US 11,949,051 B2
Wavelength conversion member and light source module
Yen-I Chou, Taoyuan (TW); Jih-Chi Li, Taoyuan (TW); and Wen-Cheng Huang, Taoyuan (TW)
Assigned to DELTA ELECTRONICS, INC., Taoyuan (TW)
Filed by DELTA ELECTRONICS, INC., Taoyuan (TW)
Filed on Jan. 25, 2021, as Appl. No. 17/156,653.
Claims priority of application No. 202010843029.1 (CN), filed on Aug. 20, 2020.
Prior Publication US 2022/0059733 A1, Feb. 24, 2022
Int. Cl. H01L 33/50 (2010.01)
CPC H01L 33/505 (2013.01) [H01L 33/504 (2013.01); H01L 2933/0041 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A wavelength conversion member, comprising:
a substrate configured to rotate based on an axis;
a phosphor layer disposed on the substrate; and
a ventilated blade disposed on the substrate and having a pore density between 10 ppi and 500 ppi or a volume porosity between 5% and 95%, wherein the ventilated blade is a foamed metal structure with tortuous through holes or a wound-like metal wire structure, and wherein the tortuous through holes of the ventilated blade are configured to allow airflow to flow through when the substrate rotates, so as to produce micro vortexes.