Zoom lens

Details Zoom lens Zoom lens

1973-12-28

1978-06-27

Clark, Conrad J.

G02B 1518

Patent

active

040971244

ABSTRACT:
This disclosure relates to variable focal lens having zooming and compensating groups movable axially in a non-linear relation. A single operating member is rotatable to move the front focusing group without moving the other groups, and movable axially to shift the zooming and compensating groups without moving the focusing group. Axial movement is imparted to the mount for the zooming group, and relative movement of the compensating group is controlled by rotative movement of the zooming group.

REFERENCES:
patent: 3090282 (1963-05-01), Angenieux
patent: 3169461 (1965-02-01), Erbe et al.
patent: 3731987 (1973-05-01), Iida et al.
patent: 3765748 (1973-10-01), Mito

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