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:
Jan. 24, 2017
Filed:
Jun. 21, 2013
Applicant:
Yasuhiro Fujiwara, Tokyo, JP;
Inventor:
Yasuhiro Fujiwara, Tokyo, JP;
Assignee:
HOYA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/21 (2006.01); C03B 11/00 (2006.01); G02B 1/00 (2006.01); C03C 1/00 (2006.01);
U.S. Cl.
CPC ...
C03C 3/21 (2013.01); C03B 11/00 (2013.01); C03C 1/00 (2013.01); G02B 1/00 (2013.01); C03B 2215/40 (2013.01);
Abstract
An aspect of the present invention relates to optical glass, which is oxide glass including cation components in the form of 10 to 40 cation % of P, equal to or more than 50 cation % of a combined quantity of Ti, Nb, W, Bi, and Te, with a cation ratio of a combined content of Tiand Nbto a combined content of Wand Bibeing equal to or less than 1.3, a combined quantity of B, Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, and Znwhich amounts to equal to or less than ⅓ of a combined content of Ti, Nb, W, Bi, and Te, and more than 0 % of Li, Na, K, Rb, and Cscombined, and which has a refractive index of equal to or higher than 2.02.