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:
Sep. 26, 2000
Filed:
Jun. 23, 1999
Applicant:
Inventors:
Yasunobu Kayanuma, Saitama, JP;
Kazuo Ikari, Saitama, JP;
Assignee:
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B / ;
U.S. Cl.
CPC ...
359692 ; 354691 ; 354684 ; 354683 ;
Abstract
A zoom lens includes a front lens group having a negative power as a whole and a rear lens group having a positive power as a whole, and a stop included therein. For zooming, the front and rear lens groups are moved relative to each other on an optical axis. For focusing, only a rearmost positive lens of the rear lens group is moved. The zoom lens satisfies the following conditions: