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:
Dec. 01, 2020
Filed:
Sep. 17, 2018
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventors:
Yukiko Nagatoshi, Saitama, JP;
Shunsuke Miyagishima, Saitama, JP;
Kazuyoshi Okada, Saitama, JP;
Ukyo Tomioka, Saitama, JP;
Masaru Yonezawa, Saitama, JP;
Yasutaka Shimada, Saitama, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/00 (2006.01); G02B 13/00 (2006.01); G02B 9/64 (2006.01); G02B 13/04 (2006.01); G02B 15/177 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0025 (2013.01); G02B 9/64 (2013.01); G02B 13/0045 (2013.01); G02B 13/04 (2013.01); G02B 15/177 (2013.01);
Abstract
The imaging lens includes at least one negative lens that satisfies predetermined Conditional Expressions (1) to (3) indicating conditions in which dispersion is relatively low and refractive index is high while having a negative rate of change of the refractive index. A positive lens having a largest Abbe number at the d line among positive lenses included in the imaging lens satisfies predetermined Conditional Expressions (4) and (5).