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. 26, 2017
Filed:
Mar. 10, 2015
Cdgm Glass Co., Ltd, Chengdu, Sichuan, CN;
Wei Sun, Chengdu, CN;
CDGM GLASS CO., LTD, Changdu, CN;
Abstract
The invention provides an environment-friendly optical glass with excellent negative anomalous dispersion performance and an optical element. The optical glass with excellent negative anomalous dispersion performance contains 0-5% of NbO, exclusive of TiOand F, wherein the relative partial dispersion Pg, F of the optical glass is less than 0.57, and the negative anomalous dispersion ΔPg, F is less than and equal to −0.008. There is no need to add any non-environmentally friendly element into the optical glass provided by the present invention, with the refractive index of 1.60-1.65, the Abbe number of 40-46, and the negative anomalous dispersion ΔPg, F of generally less than −0.01. Therefore, the optical glass, with excellent negative anomalous dispersion performance and environmental performance, is applicable to be extensively applied to digital camera, digital video, camera phone, etc.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile