Self-timer device for motion picture camera

Details Self-timer device for motion picture camera Self-timer device for motion picture camera

1975-10-21

1977-09-06

Hayes, Monroe H.

Optics: motion pictures

Camera and/or projector drive mechanisms

With starting and/or stopping means

354238, 242208, G03B 100

Patent

active

040464652

ABSTRACT:
A self-timer device for a motion picture camera of the type having a first motor for driving a film feeding device and a shutter device and a second motor for driving other moving parts such as a zoom lens system. In the device, automatic photographing controlling means which is provided with cam portions for controlling the timing for starting and stopping the camera release operation is operated by the second motor. For photographing, an interlock arrangement between the second motor and the other moving parts which are to be driven by the motor is released while, at the same time, the cam portions of the controlling means are brought into a given relation to a camera release arrangement. This is done in such a manner that the timing for starting and stopping the camera release, i.e. the time intervals between setting for automatic photographing and the actual commencement of it and between the start of photographing and the end of it, is controlled by the cam portions of the controlling means as the controlling means is operated by the second motor to accomplish an automatic photographing operation.

REFERENCES:
patent: 3027800 (1962-04-01), Leuschke
patent: 3567316 (1971-03-01), Wilharm
patent: 3667367 (1972-06-01), Miyagawa

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