Simplified zoom lens

Details Simplified zoom lens Simplified zoom lens

1996-12-26

1998-11-10

Epps, Georgia Y.

Optical: systems and elements

Lens

With variable magnification

359717, G02B 1514, G02B 302

Patent

active

058352813

ABSTRACT:
A zoom lens comprising, from the object end, a positive power first lens having a convex image side surface and a negative power second lens having a curvature on a concave object side surface larger than on an image side surface, the first and second lenses being movable relative to each other to vary the focal length of the zoom lens, the zoom lens satisfying the following relations:

REFERENCES:
patent: 5638210 (1997-06-01), Sato et al.
patent: 5657167 (1997-08-01), Ohno

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