	US 12,319,609 B1
	Glass material with low refractive index and radiation resistance, method for preparing the same, and applications thereof
Shengyun Yang, Zaozhuang (CN); Zhenbo Cao, Zaozhuang (CN); Meilun Zhang, Zaozhuang (CN); Jinsheng Jia, Zaozhuang (CN); Yang Zhang, Zaozhuang (CN); Jingming Zheng, Zaozhuang (CN); You Zhou, Zaozhuang (CN); Zijin Li, Zaozhuang (CN); Haifeng Lv, Zaozhuang (CN); and Sheng Hong, Zaozhuang (CN)
Assigned to CNBM PHOTONICS TECHNOLOGY CO., LTD., Zaozhuang (CN)
Appl. No. 18/692,163
Filed by CNBM PHOTONICS TECHNOLOGY CO., LTD., Shandong (CN)
PCT Filed May 30, 2023, PCT No. PCT/CN2023/097222 § 371(c)(1), (2) Date Mar. 14, 2024, PCT Pub. No. WO2024/229908, PCT Pub. Date Nov. 14, 2024.
Claims priority of application No. 202310540481.4 (CN), filed on May 11, 2023.
Int. Cl. C03C 13/04 (2006.01); C03C 3/118 (2006.01); G02B 6/02 (2006.01); C03B 25/02 (2006.01)

CPC C03C 13/046 (2013.01) [C03C 3/118 (2013.01); G02B 6/02395 (2013.01); C03B 25/02 (2013.01); C03C 2213/00 (2013.01)]

15 Claims

1. A glass material, consisting of the following components by mole percent: 65.8-69.8% SiO₂, 8.9-10% B₂O₃, 0.1-1% CeO₂, 5-10% Na₂O, 2-10% K₂O, 1-8% Al₂O₃, 1.5-2% CaF₂, 0.1-1% As₂O₃, and 1-5% alkaline earth metal oxides, wherein the alkaline earth metal oxides are a combination of BaO, SrO, CaO, and MgO, wherein a total content of CeO₂and As₂O₃is 0.2-1.5%, a content of MgO is 1.8-2.6%, a content of CaO is 0.2-0.4%, the content of MgO accounts for ≥50% of a total content of alkaline earth metal oxides.