Zoom lens assembly

Details Zoom lens assembly Zoom lens assembly

1983-08-15

1985-12-17

Henry, Jon W.

350449, 350450, G02B 710, G02B 1518

Patent

active

045589275

ABSTRACT:
A zoom lens assembly comprises an optical system including, in succession from the object side, a stationary lens group, a first movable lens group, a second movable lens group and a third movable lens group, a stationary barrel for holding the stationary lens group, first, second and third movable barrel members disposed in the stationary barrel for sliding movement in the direction of the optical axis and holding the first, second and third movable lens groups, respectively, and lens driving means including means for sliding the first movable barrel member for focusing and means for sliding the second and third movable barrel members for zooming.

REFERENCES:
patent: 3090282 (1963-05-01), Angenieux
patent: 3163701 (1964-12-01), Staubach
patent: 3765748 (1973-10-01), Mito
patent: 3877794 (1975-04-01), Kulle et al.
patent: 4054372 (1977-10-01), Schroeder
patent: 4110006 (1978-08-01), Ikemori

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