Image position correcting optical system

Details Image position correcting optical system Image position correcting optical system

1996-01-04

1997-06-24

Nguyen, Thong

Optical: systems and elements

Image stabilization

By movable refractive structure

359554, 359692, G02B 2764

Patent

active

056422253

ABSTRACT:
Disclosed is an image position correcting optical system, comprising sequentially from an object side, a first lens group having positive refracting power and a second lens group having negative refracting power. The first lens group is fixed. The second lens group is so provided as to be movable along an optical axis. A part of lens subunits of lens elements constituting the first lens group is so provided as to be movable in a direction across the optical axis. A positive lens element of the lens elements constituting the first lens group satisfies the following conditions:

REFERENCES:
patent: 4978205 (1990-12-01), Sato
patent: 5000549 (1991-03-01), Yamazaki
patent: 5168403 (1992-12-01), Umeda et al.
patent: 5270857 (1993-12-01), Oizumi et al.
patent: 5579160 (1996-11-01), Sato

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