System for recording on the film of a camera data relating to th

Details System for recording on the film of a camera data relating to th System for recording on the film of a camera data relating to th

1974-05-13

1976-07-20

Hix, L. T.

354 32, 354 33, 354 35, 354 60F, 354105, 354129, 354145, G03B 1502

Patent

active

039710491

ABSTRACT:
A data photographing system has a flash capacitor which is charged by a power source and discharged through a flash tube in response to a trigger signal for illuminating data, and has a control circuit for producing the trigger signal only if the flash capacitor has been charged to a predetermined voltage level. The control circuit includes a voltage detector, such as a Zener diode, and a synchronizing switch adapted to be closed in response to actuation of the shutter release mechanism of the camera. The control circuit may also include a trigger capacitor which is charged by the power source and which is discharged through the primary winding of a transformer to produce a trigger signal of stepped-up voltage across the secondary winding of the transformer. The trigger capacitor may be discharged directly through the Zener diode and the synchronizing switch or through an SCR controlled thereby.

REFERENCES:
patent: 3727100 (1973-04-01), Kuraishi et al.

Affiliated with

Also associated with

Rating

System for recording on the film of a camera data relating to th does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for recording on the film of a camera data relating to th, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for recording on the film of a camera data relating to th will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-561027