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. 20, 2015
Filed:
Mar. 12, 2014
Applicant:
Konica Minolta, Inc., Tokyo, JP;
Inventor:
Yoshihito Souma, Tokyo, JP;
Assignee:
KONICA MINOLTA, INC., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 15/14 (2006.01); G02B 13/00 (2006.01); H04N 5/232 (2006.01); G02B 27/00 (2006.01); G02B 15/173 (2006.01); G02B 9/60 (2006.01); G02B 13/18 (2006.01);
U.S. Cl.
CPC ...
G02B 13/009 (2013.01); G02B 15/173 (2013.01); G02B 27/0062 (2013.01); H04N 5/23296 (2013.01); G02B 9/60 (2013.01); G02B 13/0015 (2013.01); G02B 13/0045 (2013.01); G02B 13/18 (2013.01); G02B 15/14 (2013.01);
Abstract
A zooming optical system has, from the object side, a positive first group, a negative second group, a positive third group, a positive fourth group, and a negative fifth group. During zooming, at least the third to fifth groups move relative to the image plane, and focusing is achieved by moving the fourth group along the optical axis. The conditional formula −1.0<M5/f5<−0.1 is fulfilled, where M5 is the distance along the optical axis from the position of the fifth group at the wide-angle end to the position of the fifth group at the telephoto end and f5 is the focal length of the fifth group.