Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
PROJECTOR
Document Type and Number:
Japanese Patent JPS57115534
Kind Code:
A
Abstract:
A motion picture apparatus is provided which comprises a rotary disc shutter having a shutter sector and actuated by an electric drive device. A claw mechanism is controlled by the electric drive device and provides for transport of a film. An electromagnetic solenoid provides for stopping the film in position. A plunger for the solenoid is provided for disengaging the claw transport mechanism after a frame transport phase upon generation of an appropriate signal. A position signal generator provides a shutter position signal depending on the position of the shutter sector and a marking signal generator provides a signal depending on the detection of a marking placed on the film. The position signal generator is connected to a first input of an AND gate and the marking signal generator is connected to a second input of the AND gate. The output of the AND gate is connected to the solenoid. The apparatus and a corresponding method provide for stopping a film without interference in proper position.

Inventors:
HORUSUTO ROSUBATSUHA
Application Number:
JP12541081A
Publication Date:
July 19, 1982
Filing Date:
August 12, 1981
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
AGFA GEVAERT AG
International Classes:
G03B21/50; (IPC1-7): G03B21/50



 
Previous Patent: JPS57115533

Next Patent: PHOTOGRAPHIC DEVICE