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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.:

US 10295802 B1

PDFFull Text
Date of Patent:
May. 21, 2019

Filed:

Apr. 05, 2017

Zoom optical system and image pickup apparatus using the same

Applicant:

Olympus Corporation, Hachioji-shi, Tokyo, JP;

Inventor:

Kazuteru Kawamura, Hachioji, JP;

Assignee:

OLYMPUS CORPORATION, Tokyo, JP;

Attorney:

Holtz, Holtz & Volek PC

Primary Examiner:

Evelyn A Lester

Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 15/163 (2006.01); G02B 27/00 (2006.01); G02B 15/20 (2006.01); G02B 27/64 (2006.01); G02B 13/00 (2006.01); G02B 15/24 (2006.01); G02B 9/60 (2006.01); G02B 13/04 (2006.01); G02B 3/14 (2006.01); G02B 9/62 (2006.01); G02B 15/173 (2006.01); G02B 5/00 (2006.01); G02B 9/34 (2006.01); G02B 15/177 (2006.01); G02B 15/16 (2006.01); G02B 13/18 (2006.01);
U.S. Cl.
CPC ...
G02B 15/163 (2013.01); G02B 27/0025 (2013.01); G02B 3/14 (2013.01); G02B 5/005 (2013.01); G02B 9/34 (2013.01); G02B 9/60 (2013.01); G02B 9/62 (2013.01); G02B 13/002 (2013.01); G02B 13/009 (2013.01); G02B 13/0045 (2013.01); G02B 13/04 (2013.01); G02B 13/18 (2013.01); G02B 15/16 (2013.01); G02B 15/173 (2013.01); G02B 15/177 (2013.01); G02B 15/20 (2013.01); G02B 15/24 (2013.01); G02B 27/646 (2013.01);
Abstract

A zoom optical system includes a plurality of lens units, the plurality of lens units consist of lens units having a positive refractive power and lens units having a negative refractive power, and the lens units having a positive refractive power include a positive lens unit and an image-side positive lens unit, the image-side positive lens unit is not moved, in the lens plurality of units, a space between the lens units disposed adjacently is changed at a time of zooming, at a time of focusing, or at a time of zooming and at a time of focusing, the positive lens unit includes a predetermined positive lens satisfying the following Conditional Expression (2), and the following Conditional Expression (1) is satisfied:0.1≤1/≤2.1  (1), and60.8≤ν1≤100.0  (2).

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