Focusing apparatus for image pickup device

Details Focusing apparatus for image pickup device Focusing apparatus for image pickup device

1981-05-12

1983-07-12

Murray, Richard

Facsimile and static presentation processing

Facsimile

Recording apparatus

H04N 526

Patent

active

043934099

ABSTRACT:
A focusing apparatus for an image pickup device includes a focusing mechanism for carrying out focus adjustment for the image pickup; a zooming mechanism for carrying out zoom adjustment for the image pickup; a detector for furnishing zoom data corresponding to the extent of zoom adjustment carried out by the zooming mechanism; and a driver for actuating the focusing mechanism in accordance with the zoom data.
The focusing mechanism, zooming mechanism, detector and driver jointly comprise a servo loop for carrying out the prescribed adjustment of the focus in accordance with the extent of zoom adjustment carried out by the zooming mechanism.

REFERENCES:
patent: 3283231 (1966-11-01), Askew
patent: 3400212 (1968-09-01), Plummer

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