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:
Mar. 07, 2017
Filed:
Oct. 30, 2015
Olympus Corporation, Tokyo, JP;
Keisuke Takada, Tokyo, JP;
Takashi Fujikura, Tokyo, JP;
Olympus Corporation, Tokyo, JP;
Abstract
A zoom lens having a plurality of lens units comprises in order from an object side, a first lens unit Ghaving a positive refractive power, a second lens unit Ghaving a negative refractive power, and a rearmost lens unit having a negative refractive power, and the rearmost lens unit is positioned nearest to an image in the plurality of lens units, and at the time of zooming from a wide angle end to a telephoto end, distances between the lens units change, and the first lens unit Gmoves toward the object side, and following conditional expression (1) is satisfied:0.2<(β/β)/()<0.7  (1).