Control system for terminating the discharge of a flash lamp

Details Control system for terminating the discharge of a flash lamp Control system for terminating the discharge of a flash lamp

1972-05-01

1976-04-20

Saalbach, Herman Karl

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Load device irradiating the radiant energy responsive device

315159, 315241P, 315241R, H05b 3702

Patent

active

RE0287830

ABSTRACT:
An arrangement for controlling the flash duration in photographic cameras. A light-sensitive element within the apparatus responds to light originating from the source for flash bulbs and reflected by the object or scene to be photographed. The flash bulb is ignited by an ignition circuit which also generates the operating voltage for the light-sensitive device. Through the application of a discharge tube which has a considerably lower internal resistance, when ignited, than the flash bulb, the latter becomes extinguished when the quantity of light reflected by the object or scene and impinging upon the light-sensitive device, is [of] a predetermined [magnitude] quantity.

REFERENCES:
patent: 3033988 (1962-05-01), Edgerton
patent: 3340426 (1967-09-01), Elliott
patent: 3350603 (1967-10-01), Erickson
patent: 3350604 (1967-10-01), Erickson
patent: 3350604 (1967-10-01), Erickson
patent: 3519879 (1970-07-01), Ogawa
patent: 3591829 (1971-07-01), Murata et al.

Affiliated with

Also associated with

Rating

Control system for terminating the discharge of a flash lamp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Control system for terminating the discharge of a flash lamp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for terminating the discharge of a flash lamp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1576083