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:
Oct. 19, 2021
Filed:
Jun. 13, 2019
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventor:
Genki Nakazawa, Osaka, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 9/62 (2006.01); G02B 13/02 (2006.01); G02B 27/00 (2006.01); G02B 15/20 (2006.01); G02B 13/18 (2006.01); G03B 5/00 (2021.01); G02B 15/14 (2006.01); G02B 15/16 (2006.01); G02B 13/00 (2006.01); G02B 5/00 (2006.01);
U.S. Cl.
CPC ...
G02B 9/62 (2013.01); G02B 13/02 (2013.01); G02B 13/18 (2013.01); G02B 15/20 (2013.01); G02B 27/0025 (2013.01); G03B 5/00 (2013.01); G02B 5/005 (2013.01); G02B 13/009 (2013.01); G02B 15/14 (2013.01); G02B 15/16 (2013.01);
Abstract
A zoom lens system includes, in order from an object side to an image side: a first lens group having positive power; a second lens group having negative power; a third lens group having positive power; a fourth lens group having negative power; a fifth lens group having positive power; and a sixth lens group having power. During zooming from wide angle extremity to telephoto extremity, the distance between respective lens groups changes. The fifth lens group is composed of at most two lens elements, at least one of which is a concave meniscus lens element having a convex surface facing the object side.