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:
Jun. 15, 2010
Filed:
Feb. 17, 2006
Applicants:
Motoyuki Ohtake, Saitama, JP;
Koji Okajima, Kanagawa, JP;
Mitsuhiro Suzaki, Tokyo, JP;
Inventors:
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 14/15 (2006.01);
U.S. Cl.
CPC ...
Abstract
A zoom lens and imaging apparatus implementing four lens groups including a first lens group Ghaving a positive refractive power, a second lens group Ghaving a negative refractive power, a third lens group Ghaving a positive refractive power, and a fourth lens group Ghaving a positive refractive power. When a positional state is varied from a wide-angle-end state to a telephoto-end state, the second lens group is moved to an image side, and the fourth lens group is moved to compensate for image plane variation caused by the movement of the second lens group.