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. 03, 2020
Filed:
Oct. 12, 2018
Cdgm Glass Co., Ltd., Chengdu, CN;
Bo Kuang, Chengdu, CN;
CDGM GLASS CO., LTD., Chengdu, CN;
Abstract
The invention provides an optical glass having excellent precision molding performance and having a refractive index of 1.46-1.53 and an Abbe number of 77-84. The optical glass comprises the following components based on cations in the molar percentage: P: 10-35%, Al: 10-35%, Ba: 1-20%, Sr: 10-35%, Ca: 1-20%, Gd: 0-10%, and Na: 0-10%; the ratio of Sr/(Gd+Na) being 1-30; anions comprising Fand O, wherein the ratio F/Pof Fcontent relative to the total molar percentage of anions to Pcontent relative to the total molar percentage of cations is 2.5 or more. The invention by rationally adjusting the proportions of the components, the molding performance of the optical glass is improved, and the problem that glass is broken and forms fogs during the molding process is solved, thereby the yield in manufacturing optical elements is improved.