Zoom lens system

Details Zoom lens system Zoom lens system

1980-07-07

1983-01-18

Corbin, John K.

G02B 1516

Patent

active

043689531

ABSTRACT:
A zoom lens system comprising a front lens group consisting of a first positive lens component, a second negative meniscus lens component, a third negative lens component and a fourth positive lens component, and a rear lens group consisting of a fifth positive lens component, a sixth positive lens component, a seventh negative lens component and an eighth positive lens component. Said zoom lens system is so adapted as to perform zooming operation by varying the airspace reserved between said front and rear lens groups, and has sufficient wide-angle effect and a large zooming ratio in addition to aberrations corrected with good balance.

REFERENCES:
patent: 4142779 (1979-03-01), Ogawa
patent: 4159165 (1979-06-01), Betensky et al.
patent: 4169660 (1979-10-01), Nakamura

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