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:
Sep. 06, 2016
Filed:
Feb. 06, 2012
Wei Sun, Chengdu, CN;
Wei Sun, Chengdu, CN;
CDGM GLASS CO., LTD, Chengdu, CN;
Abstract
The invention including phosphate optical glass with refractivity ranging from 1.93 to 1.95 and the Abbe number ranging from 16 to 19, with a low liquidus temperature. The phosphate optical glass, including: 5 to 25 wt % of NaPO, 1 to 20 wt % of KPO, 2 to 15 wt % of PO, 0 to 5 wt % of BaO, 0 to 10 wt % of Ba(PO), more than 0 but less than 2 wt % of BO, 5 to 25 wt % of TiO, 35 to 55 wt % of NbO, and 0 to 5 wt % of SiO. Refractivity of phosphate optical glass can reach 1.93 to 1.95, the Abbe number can reach 16 to 19, the liquidus temperature is below 1,120° C., the processing property during melting is good, the glass surface is unlikely to be devitrified during the processing of the glass, and can be formed easily.