公开(公告)号：US11822052B2

公开(公告)日：2023-11-21

申请号：US17047031

申请日：2018-12-03

Applicant: Appotronics Corporation Limited

Inventor： Da-Yan Dai ,  Hao Zhou ,  Yi Li

IPC: G02B26/00 ,  G03B21/20

CPC classification number: G02B26/008 ,  G03B21/204

Abstract: A colour wheel assembly, a light source system provided with the same, and a projection device are provided, a boron nitride coating being arranged on the side of the colour wheel assembly corresponding to a red fluorescent area and the other side being provided with glass powder, and the two sides of a non-red fluorescent area both being provided with a glass powder coating layer. By means of arranging boron nitride material in a position corresponding to a red fluorescent area, as the boron nitride material has good thermal conductivity relative to the glass powder and the crystal structure of the boron nitride is a layered structure, having the effect of effectively blocking light and thereby further reducing the excitation light incident on the red fluorescent powder, attenuation of the red fluorescence under the direct excitation of strong excitation light can be effectively prevented.