High variable magnification wide angle zoom lens

Details High variable magnification wide angle zoom lens High variable magnification wide angle zoom lens

1982-10-21

1985-04-09

Corbin, John K.

G02B 964, G02B 1514

Patent

active

045098336

ABSTRACT:
A wide angle zoom lens with an increased varifocal range comprises, from front to rear, a divergent 1st lens group, a convergent 2nd lens group and a divergent 3rd lens group, the aforesaid three lens groups being axially movable to effect zooming, and the focal lengths and the directions of movement of the 2nd and 3rd lens groups being properly set forth, to thereby achieve a good aberration correction.

REFERENCES:
patent: 4303311 (1981-12-01), Nakamura

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