Zoom lens barrel and camera having such a barret

Details Zoom lens barrel and camera having such a barret Zoom lens barrel and camera having such a barret

1996-07-05

1998-06-30

Perkey, W. B.

Photography

Having variable focal length of camera objective

Having focus operation

396 84, 396 87, 396 90, 396349, 396448, G03B 500, G03B 1304, G03B 1704

Patent

active

057747482

ABSTRACT:
A zoom lens camera includes a whole unit moving device to move a front lens group and a rear lens group together as a whole in an optical axis direction, and a relative moving means to vary a distance between the front lens group and the rear lens group. The whole unit moving means is driven during a zooming operation, and at least the whole unit moving means or the relative moving means is driven during a focusing operation to focus on a subject to be photographed.

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