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:
May. 01, 2018
Filed:
Nov. 18, 2016
Applicant:
Olympus Corporation, Hachioji-shi, Tokyo, JP;
Inventors:
Kazuteru Kawamura, Hachioji, JP;
Takashi Fujikura, Fussa, JP;
Kenichi Nagasawa, Hachioji, JP;
Masaru Morooka, Akishima, JP;
Assignee:
OLYMPUS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 15/177 (2006.01); G02B 15/20 (2006.01); G02B 5/00 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G02B 15/177 (2013.01); G02B 5/005 (2013.01); G02B 15/20 (2013.01); G02B 27/0025 (2013.01);
Abstract
A zoom lens includes a front unit having a negative refractive power and a rear unit having a positive refractive power, which includes an aperture stop, and the front unit includes a first lens having a negative refractive power, and the first lens has a meniscus shape of which a convex surface is directed toward the object side, and the rear unit includes a first lens unit A and a second lens unit B, and at the time of zooming from a wide angle end to a telephoto end, a distance between the front unit and the rear unit changes.