Focusing apparatus for video camera or the like

Details Focusing apparatus for video camera or the like Focusing apparatus for video camera or the like

1995-03-01

1997-08-05

Faile, Andrew

Television

Camera, system and detail

Optics

348207, 396131, H04N 5225

Patent

active

056547579

ABSTRACT:
A focusing apparatus for video camera or the like in which a change-over between automatic focusing and manual focusing is possible comprises an endlessly rotatable and hand-worked manipulator, a detector for detecting the direction and amount of manipulation or rotational movement of the manipulator, and a controller/driver for moving a part of optical elements in an optical system along its optical axis direction in a direction corresponding to the direction of manipulation of the manipulator detected by the detector and by a distance corresponding to the amount of manipulation of the manipulator detected by the detector, thereby taking the focus.

REFERENCES:
patent: 4236794 (1980-12-01), Gordon
patent: 4567526 (1986-01-01), Tsuchiya
patent: 5408332 (1995-04-01), Murakami et al.

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