Zoom lens and imaging apparatus

Details Zoom lens and imaging apparatus Zoom lens and imaging apparatus

2007-11-07

2009-11-03

Collins, Darryl J (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S680000

Reexamination Certificate

active

07612949

ABSTRACT:
A zoom lens includes, in order from the object side, a first lens group having a negative refractive power, a second lens group having a positive refractive power, and a third lens group having a positive refractive power. When a lens positional state changes from a maximum wide angle state to a maximum telephoto state, the second lens group moves on an optical axis toward an object, and the first and the third lens groups also move in an optical axis direction such that a gap between the first lens group and the second lens group decreases, while gap between the second lens group and the third lens group is increased. When a change in subject position occurs, close-range focusing is performed by movement of the third lens group, and image shift is provided by shifting the second lens group in directions approximately perpendicular to the optical axis.

REFERENCES:
patent: 6925253 (2005-08-01), Miyatake
patent: 7023623 (2006-04-01), Miyatake et al.
patent: 2005/0275951 (2005-12-01), Otake
patent: 2008/0084616 (2008-04-01), Katakura
patent: 01-116619 (1989-05-01), None
patent: 06-337374 (1994-12-01), None
patent: 11-174329 (1999-07-01), None
patent: 2002-277740 (2002-09-01), None
patent: 2004-061675 (2004-02-01), None
patent: 2006-078581 (2006-03-01), None
patent: 2006-227516 (2006-08-01), None
patent: WO 02/082158 (2002-10-01), None
patent: WO-03/085440 (2003-10-01), None
patent: WO 2006/001431 (2006-01-01), None

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