Zoom optical system with a vibration correction function and...

Details Zoom optical system with a vibration correction function and... Zoom optical system with a vibration correction function and...

2006-06-27

2006-06-27

Lester, Evelyn A. (Department: 2873)

Optical: systems and elements

Image stabilization

By movable refractive structure

C359S683000, C359S684000, C359S685000, C359S686000, C359S715000, C359S740000, C359S772000, C359S774000

Reexamination Certificate

active

07068429

ABSTRACT:
A zoom optical system with a vibration correction function includes, from the object side, a first lens group having positive refractive power and that is stationary during zooming, a second lens group having negative refractive power and that moves along the optical axis during zooming, a third lens group having positive refractive power that includes a stop, and a fourth lens group having positive refractive power. Two of the second, third, and fourth lens groups move along the optical axis during zooming. A fifth lens group may be included. At least part of one of the third, fourth, or fifth lens groups that does not move along the optical axis during zooming is movable in a direction that intersects the optical axis in order to correct for blurring of an image due to vibration of the zoom optical system. An imaging device uses the zoom optical system.

REFERENCES:
patent: 5677792 (1997-10-01), Hamano
patent: 6473231 (2002-10-01), Hamano et al.
patent: 6650475 (2003-11-01), Hamano
patent: 6718132 (2004-04-01), Nishina
patent: 6771432 (2004-08-01), Mihara
patent: 6781755 (2004-08-01), Yoneyama
patent: 6999240 (2006-02-01), Yamada et al.
patent: 2002/0024732 (2002-02-01), Hamano et al.
patent: 2004-151552 (2004-05-01), None
patent: 2004-212737 (2004-07-01), None

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