Motion picture camera

Details Motion picture camera Motion picture camera

1976-01-23

1977-10-04

Hayes, Monroe H.

Optics: motion pictures

Time compression or expansion

352141, 352171, 352180, G03B 4100

Patent

active

040521265

ABSTRACT:
A motion picture camera having a film transport mechanism driven by an electric motor having an electronic speed control circuit which may be controlled by the camera operator so as to modify the speed of the motor and consequently the film transport velocity for the selection of various picture frequencies or frames per unit of time both above and below a normal picture frequency for normal shooting thereby permitting both time lapse and slow motion photography during use, the motor speed control circuit permitting the motor to be returned to its normal film speed automatically, together with an automatic aperture control circuit and a picture frequency indicator which may be observed by the operator during the operation of the camera.

REFERENCES:
patent: 3567317 (1971-03-01), Plummer
patent: 3589805 (1971-06-01), Stimson
patent: 3784292 (1974-01-01), Winkler
patent: 3825329 (1974-07-01), Heinrich

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