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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 9857574 B1

PDFFull Text
Date of Patent:
Jan. 02, 2018

Filed:

Dec. 06, 2016

Zoom lens system and imaging apparatus

Applicant:

Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;

Inventor:

Takao Yamanaka, Osaka, JP;

Assignee:

PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka, JP;

Attorney:

Wenderoth, Lind & Ponack, L.L.P.

Primary Examiner:

James Greece

Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 15/173 (2006.01); G02B 5/00 (2006.01); G02B 27/64 (2006.01); G02B 27/00 (2006.01); G02B 13/18 (2006.01);
U.S. Cl.
CPC ...
G02B 15/173 (2013.01); G02B 5/005 (2013.01); G02B 13/18 (2013.01); G02B 27/0025 (2013.01); G02B 27/646 (2013.01);
Abstract

A zoom lens system, in order from an object side to an image side, includes: a first lens group having positive optical power; a second lens group having negative optical power; a third lens group having positive optical power; a fourth lens group having negative optical power; and a fifth lens group having positive optical power, wherein focusing is performed by moving the fourth lens group, and conditions (1) through (3) are satisfied:Σ/(×tan ω)<3.5  (1)<1.1  (2)9.1<  (3)whereΣd is a total thickness of each of the lens groups,ωT is a half angle of view at the telephoto end,fW is a focal length at the wide angle end,fT is a focal length at the telephoto end, andLT is an optical total length at the telephoto end.

Find Patent Forward Citations

Yamanaka, Takao. (2018). Zoom lens system and imaging apparatus (U.S. Patent No. 9857574). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9857574

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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