Indicating device for motion picture camera

Details Indicating device for motion picture camera Indicating device for motion picture camera

1976-12-06

1978-08-08

Hayes, Monroe H.

Optics: motion pictures

Camera and/or projector drive mechanisms

With indicating means

354 53, G03B 160

Patent

active

041053109

ABSTRACT:
An indicating lamp disposed on a camera housing so as to be observed by a person to be photographed is energized in two different modes respectively before and after a film has been exhausted or nearly completely used. A power-supplying circuit for energizing the indicating lamp includes first and second switches connected in parallel with each other for supplying electric power to the indicating lamp. The first switch is repeatedly closed and opened due to the operation of the motion picture camera while the second switch is opened or closed immediately before the film is exhausted or nearly completely used.

REFERENCES:
patent: 3205507 (1965-09-01), Hochstein
patent: 3519340 (1970-07-01), Vockenhuber
patent: 3782813 (1974-01-01), Isono

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-915831