Sound motion picture camera

Details Sound motion picture camera Sound motion picture camera

1979-10-30

1981-06-23

Adams, Russell E.

Optics: motion pictures

With sound accompaniment

Picture and sound synchronizing

352 29, 352 72, 352180, G03B 3102

Patent

active

042747180

ABSTRACT:
In a sound motion picture camera which permits both sound filming and silent filming by selective use of a sound film cartridge and a silent film cartridge, utilization is made of only signals from loop detecting means for detecting variations in the length of a loop of sound film formed between the exposure station and the sound recording station of the camera during the use of the sound film cartridge, whereby during the use of the silent film cartridge, the film transport speed of a first film transport means for effecting film transport at the exposure station is automatically set to a first speed suited for use of the silent film cartridge and during the use of the sound film cartridge, the film transport speed of the first film transport means is changed over between a second speed higher than the film transport speed of a second film transport means for effecting film transport at the sound recording station and a third speed lower than the film transport speed of the second film transport means in accordance with a decrease and an increase in the film loop length so that the film loop may be maintained at a predetermined length.

REFERENCES:
patent: T920009 (1974-03-01), Kosarko
patent: 3982826 (1976-09-01), Saito
patent: 4003643 (1977-01-01), Freudenschuss et al.
patent: 4148566 (1979-04-01), Freudenschuss et al.
patent: 4148570 (1979-04-01), Ichiyanagi

Affiliated with

Also associated with

Rating

Sound motion picture camera does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sound motion picture camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sound motion picture camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2204817