The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2024
Filed:
Sep. 28, 2018
Applicant:
Cdgm Glass Co., Ltd, Sichuan, CN;
Inventor:
Wei Sun, Sichuan, CN;
Assignee:
CDGM GLASS CO., LTD, Sichuan, CN;
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/247 (2006.01); C03B 11/08 (2006.01);
U.S. Cl.
CPC ...
C03C 3/247 (2013.01); C03B 11/08 (2013.01); C03B 2215/412 (2013.01);
Abstract
An optical glass contains the following components in molar percentage of cations: 2-20% of P, 20-40% of Al, 0.5-10% of Ba, 5-25% of Sr, 15-35% of Ca, and 1-15% of Mg, and contains the following components in molar percentage of anions: 83-95% of Fand 5-17% of O. The fluorophosphate optical glass has a refractive index (nd) of 1.42-1.45, an Abbe number (vd) of 93-96, a density (ρ) of 3.55 g/cmor less, a bubble degree of grade B or above, a thermal expansion coefficient of 160×10/K or less, a durability of water (D) of grade 2 or above, and an excellent crystallization resistance performance.