Zoom lens system

Details Zoom lens system Zoom lens system

1995-06-13

1998-04-28

Epps, Georgia Y.

Optical: systems and elements

Lens

With variable magnification

359717, G02B 1514, G02B 302

Patent

active

057453039

ABSTRACT:
A zoom lens system comprises a stationary negative power singlet and a positive power singlet which is movable between two specific axial positions so as to change its focal length between the shortest focal length suitable for wide angle photography and the longest focal length suitable for a tele-photography, and satisfies the following condition:

REFERENCES:
patent: 5283693 (1994-02-01), Kohno et al.
patent: 5381269 (1995-01-01), Estelle
patent: 5473473 (1995-12-01), Estelle et al.

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