Soft-focus zoom lens system

Details Soft-focus zoom lens system Soft-focus zoom lens system

1998-09-28

1999-11-23

Sugarman, Scott J.

Optical: systems and elements

Lens

With variable magnification

359686, G02B 1514

Patent

active

059910933

ABSTRACT:
A soft-focus zoom lens system comprises a negative front lens group and a positive rear lens group, both of which are arranged to perform a zooming operation by moving the first lens group and the second lens group, by varying the distance between the negative front lens group and the positive rear lens group, wherein the soft-focus zoom lens system satisfies the following conditions:

REFERENCES:
patent: 4241981 (1980-12-01), Okudaira
patent: 4781446 (1988-11-01), Tanaka et al.
patent: 5267086 (1993-11-01), Hirano
patent: 5448412 (1995-09-01), Maruyama et al.
patent: 5822132 (1998-10-01), Hirakawa

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