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:
Jun. 03, 2014
Filed:
Mar. 18, 2013
Xuelu Zou, Tokyo, JP;
Yunoshin Kanayama, Tokyo, JP;
Tomoaki Negishi, Tokyo, JP;
Hoya Corporation, Tokyo, JP;
Abstract
An optical glass having high-refractivity and low-dispersion properties and containing, by mol %, 0.1 to 40% of SiO, 10 to 50% of BO, wherein the mass ratio of the content of SiOto the content of BO, SiO/BO, is 1 or less, 0.5 to 22% of ZnO, 5 to 50% of LaO, and optionally other ingredients. The optical glass has a refractive index nd of 1.86 to 1.95 and an Abbe's number νd of (2.36−nd)/0.014 or more but less than 38, and a glass transition temperature of equal to or greater than 640° C.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile