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:
Oct. 27, 2015
Filed:
Apr. 25, 2013
Applicant:
Nippon Electric Glass Co., Ltd., Otsu-shi, Shiga, JP;
Inventors:
Assignee:
Nippon Electric Glass Co., Ltd., Shiga, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C 3/16 (2006.01); C03C 3/17 (2006.01); C03C 4/08 (2006.01); G02B 1/00 (2006.01); G02B 5/20 (2006.01);
U.S. Cl.
CPC ...
C03C 3/17 (2013.01); C03C 3/16 (2013.01); C03C 4/082 (2013.01); C03C 4/085 (2013.01); G02B 1/00 (2013.01); G02B 5/208 (2013.01); C03C 2204/00 (2013.01);
Abstract
Provided is an optical glass having desired optical properties, excellent weather resistance, and high mass productivity. An optical glass having a glass composition, in % by mole based on oxide, of 5 to 40% PO, 1 to 35% SO, 10 to 30% R'O (where R′ is Li, Na or K), 20 to 50% RO (where R is Mg, Ca, Sr, Ba or Zn), and 0.001 to 15% CuO+FeO+CoO+CeO.