Variable magnification optical system having a capability of sta

Details Variable magnification optical system having a capability of sta Variable magnification optical system having a capability of sta

1989-09-15

1993-01-26

Arnold, Bruce Y.

Optical: systems and elements

Image stabilization

By movable refractive structure

359554, 359675, 359678, G02B 2764, G02B 1514

Patent

active

051826712

ABSTRACT:
An image stabilization optical system for use in the variable magnification optical system having a first lens group followed rearwardly by a zoom section comprising a plurality of lens groups is disclosed, wherein as at least one lens group in the zoom section is made to be a compensating lens group, the optical action of each lens group is properly specified so that if the tilting of the optical system is the same, the amount of compensation movement of the compensating lens group becomes always the same regardless of the image magnification varying position.

REFERENCES:
patent: 4639096 (1987-01-01), Kitagishi et al.
patent: 4818083 (1989-04-01), Mihara
patent: 4836661 (1989-06-01), Ikemori
patent: 4844602 (1989-07-01), Kitagishi et al.
patent: 4854683 (1989-08-01), Ozawa
patent: 5000549 (1991-03-01), Yamazaki
U.S. Pat. Application Ser. No. 07/261/231-Oizumi et al. filed on Oct 24, 1989.
Modern Optical Engineering-Chapters 4 and 9-Smith, McGraw-Hill Book Company, 1966.

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