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. 08, 2016
Filed:
Jan. 20, 2015
Cdgm Glass Co., Ltd., Chengdu, Sichuan, CN;
Bo Kuang, Chengdu, CN;
CDGM GLASS CO., LTD, Sichuan, CN;
Abstract
A high refractivity and high dispersion optical glass with light transmissivity and good devitrification resistance. The high refractivity and high dispersion optical glass, including: 1 wt % to 13 wt % of SiO, 6 wt % to 15 wt % of BO, 5 wt % to 22 wt % of TiO, 35 wt % to 60 wt % of LaO, 1 wt % to 15 wt % of GdO, 2 wt % to 10 wt % of ZrO, 1 wt % to 15 wt % of NbO, 0.5 wt % to 8 wt % of ZnO, 0 to 8 wt % of WOand 0 to 10 wt % of YO, with TaOand GeOexcluded. The optical glass has degree of pigmentation and light transmissivity due to no pigmenting BiO, and has low cost due to no valuable oxides such as TaOand GeO. The optical glass has devitrification resistance with a refractive index of 1.95-2.07 and Abbe number of 25-35.