Zoom lens apparatus and camera system

Details Zoom lens apparatus and camera system Zoom lens apparatus and camera system

2005-01-25

2005-01-25

Spector, David N. (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S685000

Reexamination Certificate

active

06847495

ABSTRACT:
A small zoom lens apparatus capable of carrying out focusing through manual operations in an autofocus mode. The zoom lens apparatus includes a variator lens unit, an object-side focus lens unit placed closer to an object than the variator lens unit and an image plane-side focus lens unit placed closer to an image plane than the variator lens unit. Driving of the object-side focus lens unit through manual operations is allowed when the autofocus mode is set.

REFERENCES:
patent: 4609260 (1986-09-01), Kawai
patent: 4890132 (1989-12-01), Hama
patent: 5448328 (1995-09-01), Suzuki et al.
patent: 58129404 (1983-08-01), None

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