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:
May. 24, 2016
Filed:
Oct. 17, 2013
Cdgm Glass Co., Ltd., Chengdu, Sichuan, CN;
Bo Kuang, Sichuan, CN;
CDGM Glass Co., Ltd., Chengdu, Sichuan, CN;
Abstract
The invention provides a kind of high-precision molding optical glass, comprising 0.1-10 wt % of SiO, 9-20 wt % of BO, 20-35 wt % of LaO, 1-8 wt % of ZrO, 5-20 wt % of ZnO, 1-10 wt % of TaO, 5-15 wt % of GdO, 0-2 wt % of TiO, 1-10 wt % of YO, 1-12 wt % of WO, 0-3 wt % of LiO and 0-1 wt % of SbO. The optical glass provided in the invention features density less than 5.0 g/cm, refractive index between 1.80 and 1.85, Abbe number between 40 and 45, transition temperature lower than 600° C., wavelength λcorresponding to the transmissivity of 80% below 415 nm, and upper limit of devitrification temperature below 1110° C., and is applicable to high-precision molding.