Zoom lens having anti-vibration optical system

Details Zoom lens having anti-vibration optical system Zoom lens having anti-vibration optical system

1994-09-30

1996-06-25

Sugarman, Scott J.

Optical: systems and elements

Image stabilization

By movable refractive structure

359684, 359692, G02B 2764, G02B 1514

Patent

active

055305890

ABSTRACT:
A zoom lens has a first group of a positive refractive power and a second group of a negative refractive power in sequence as seen from an object. The first group of the positive refractive power comprises a front group of a positive refractive power arranged to face the object and in front of an aperture iris and a rear group of a positive refractive power arranged between the aperture iris and an image plane. The rear group includes displacement means to drive it across an optical axis for vibration correction.

REFERENCES:
patent: 4818081 (1989-04-01), Ito
patent: 5000549 (1991-03-01), Yamazaki
patent: 5000551 (1991-03-01), Shibayama
patent: 5040881 (1991-08-01), Tsuji
patent: 5082360 (1992-01-01), Sato et al.

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