Vibration-proof zoom lens and camera provided with the same

Details Vibration-proof zoom lens and camera provided with the same Vibration-proof zoom lens and camera provided with the same

2007-05-22

2007-05-22

Nguyen, Thong Q. (Department: 2872)

Optical: systems and elements

Image stabilization

By movable refractive structure

C359S554000, C359S676000, C359S684000

Reexamination Certificate

active

11476078

ABSTRACT:
A vibration-proof zoom lens comprises a positive first lens group, a negative second lens group, a positive third lens group, a positive fourth lens group, and a positive fifth lens group, which are disposed in this order from a subject side. The second lens group moves toward an image side at a time when magnification changes from a wide-angle end to a telephoto end. The fourth lens group moves to correct variation of an image plane at the time of magnification change. The first, third and fifth lens groups are fixed. The third lens group is composed of first to third subgroups. When vibration occurs, the second subgroup is moved in a plane perpendicular to an optical axis to correct an image position so that an image blur is prevented.

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