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. 11, 2018
Filed:
Dec. 02, 2014
Applicant:
Hoya Corporation, Tokyo, JP;
Inventor:
Shuhei Mikami, Tokyo, JP;
Assignee:
HOYA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C 3/21 (2006.01); C03C 4/02 (2006.01); G02B 1/00 (2006.01); G02B 3/00 (2006.01);
U.S. Cl.
CPC ...
C03C 3/21 (2013.01); C03C 4/02 (2013.01); G02B 1/00 (2013.01); G02B 3/00 (2013.01); C03C 2204/00 (2013.01);
Abstract
Optical glass that has an Abbe number (Vd) of less than 23 and is suitable for use as a single-lens material constituting a photographic-imaging lens; an optical element including the optical glass; and an imaging lens containing a lens including the optical glass. Optical glass that has an Abbe number (Vd) of less than 23, wherein a flat plate of said optical glass with a thickness of 10 mm exhibits an ISO color contribution index (ISO/CCI) of 0 for blue (B), up to 9 for green (G), and up to 9 for red (R).