Flash unit for use with cameras having different types of diaphr

Details Flash unit for use with cameras having different types of diaphr Flash unit for use with cameras having different types of diaphr

1974-05-29

1976-06-15

Hix, L. T.

Buckles, buttons, clasps, etc.

240 13, 354 59, 354145, G03B 700

Patent

active

039640744

ABSTRACT:
An electronic flash unit having a foot which supports a depressible actuating lever for a grey filter which is moved by the lever in front of a photoelectric transducer in the casing of the flash unit when the foot is inserted into the shoe of a camera with a fixed diaphragm whose aperture is not suited for the making of exposures with flash but not when the foot is inserted into the shoe of a camera having an adjustable diaphragm capable of furnishing an f/stop which is suited for the making of exposures with flash without any adjustments of illuminating means in the casing of the flash unit. The placing of the filter in front of the transducer compensates for the fact that the aperture of the fixed diaphragm is unsatisfactory for the making of exposures with flash without any adjustments of illuminating means in the casing of the flash unit. The foot can be inserted into or withdrawn from a shoe by moving it in parallelism with or at right angles to the optical axis of the lens system in the respective camera.

REFERENCES:
patent: 3252394 (1966-05-01), Jakob et al.
patent: 3296947 (1967-01-01), Engelsmann et al.
patent: 3335650 (1967-08-01), Schmidt
patent: 3457101 (1967-07-01), Rentschler et al.
patent: 3601022 (1971-08-01), Langnau
patent: 3745323 (1973-07-01), Morse

Affiliated with

Also associated with

Rating

Flash unit for use with cameras having different types of diaphr does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Flash unit for use with cameras having different types of diaphr, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flash unit for use with cameras having different types of diaphr will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1698396