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:
Nov. 23, 2010
Filed:
Oct. 10, 2007
Applicants:
Junko Suzuki, Kawasaki, JP;
Masahiro Onozawa, Sagamihara, JP;
Inventors:
Junko Suzuki, Kawasaki, JP;
Masahiro Onozawa, Sagamihara, JP;
Assignee:
Ohara Inc., Sagamihara-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/17 (2006.01); C03C 3/247 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical glass having a refractive index (nd) within a range from 141 to 1.47 and an Abbe number (νd) within a range from 90 to 100 comprises in mass % on element basis: and comprises, as an essential component, one or more elements selected from the group consisting of Ca, Sr and Ba. In this optical glass, the ratio (Si+B+P+Al)/F is within a range from 0.15 to 0.40.