US 12,269,770 B2
Red light emitting glass ceramic and preparation method thereof, and LED/LD light emitting device
Zhiguo Xia, Guangzhou (CN); Tao Hu, Guangzhou (CN); and Qinyuan Zhang, Guangzhou (CN)
Assigned to SOUTH CHINA UNIVERSITY OF TECHNOLOGY, Guangzhou (CN)
Filed by SOUTH CHINA UNIVERSITY OF TECHNOLOGY, Guangzhou (CN)
Filed on Jun. 17, 2022, as Appl. No. 17/842,812.
Application 17/842,812 is a continuation of application No. PCT/CN2021/077874, filed on Feb. 25, 2021.
Claims priority of application No. 202011046618.3 (CN), filed on Sep. 29, 2020.
Prior Publication US 2022/0315477 A1, Oct. 6, 2022
Int. Cl. C03C 4/12 (2006.01); C03B 1/00 (2006.01); C03B 32/02 (2006.01); C03C 10/00 (2006.01); C09K 11/77 (2006.01); H10H 20/01 (2025.01); H10H 20/851 (2025.01)
CPC C03C 4/12 (2013.01) [C03B 1/00 (2013.01); C03B 32/02 (2013.01); C03C 10/0045 (2013.01); C09K 11/77344 (2021.01); H10H 20/8512 (2025.01); H10H 20/0361 (2025.01)] 8 Claims
OG exemplary drawing
 
1. A red light emitting glass ceramic, comprising a cordierite crystal phase with a chemical formula of A2Al4Si5O18:Eu2+, wherein A is at least one of Mg, Ca, Sr, Ba and Zn and at least comprises Mg.