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:
Apr. 30, 2024
Filed:
Dec. 15, 2017
Applicant:
Nikon Corporation, Tokyo, JP;
Inventors:
Masashi Yamashita, Tokyo, JP;
Tomoki Ito, Kawasaki, JP;
Hiroshi Yabumoto, Yokohama, JP;
Hiroshi Yamamoto, Kawasaki, JP;
Satoshi Miwa, Yokohama, JP;
Keisuke Tsubonoya, Yokohama, JP;
Ayumu Makida, Kawaguchi, JP;
Takeru Uehara, Ageo, JP;
Assignee:
Nikon Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/00 (2006.01); G02B 3/00 (2006.01); G02B 15/14 (2006.01); G02B 15/163 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0025 (2013.01); G02B 3/00 (2013.01); G02B 15/1425 (2019.08); G02B 15/143105 (2019.08); G02B 15/144113 (2019.08); G02B 15/144511 (2019.08); G02B 15/1461 (2019.08); G02B 15/163 (2013.01); G02B 2003/0093 (2013.01);
Abstract
An optical system (LS) includes lenses (L,L) satisfying the following conditional expressions,+(0.01425×)<2.12, andν35.0,where ndLZ: a refractive index of the lens with reference to d-line, and