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. 27, 2009
Filed:
Jan. 19, 2006
Applicant:
Koichi Sugiura, Yokohama, JP;
Inventor:
Koichi Sugiura, Yokohama, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 17/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A photographing lens driving control device includes a plurality of lens groups (A-C) having a magnification function, a plurality of lens driving devices (A-C), which drives the plurality of lens groups, and a control device (A,B), which controls the plurality of lens driving devices, and when driving a lens group (A) positioned in an object side of the plurality of lens groups, the control device adjusts a driving speed of another lens group (B) depending on a position of the another lens group with respect to a position of the lens group positioned in the object side.