Flash unit for a camera

Details Flash unit for a camera Flash unit for a camera

1977-10-31

1979-11-20

Nelson, Peter A.

Illumination

Photographic lighting

Including specific light modifier

362303, G03B 1502

Patent

active

041752791

ABSTRACT:
The unit includes a flexible filter contained in a casing and an actuating arrangement for the filter to position the filter in front of the flash lamp in an operative or first position thereof and to retract the filter from in front of the flash lamp in an inoperative or second position thereof.

REFERENCES:
patent: 2734435 (1956-02-01), Leonardi
patent: 2783679 (1957-03-01), Goldberg
patent: 2979601 (1961-04-01), McClees
patent: 3386360 (1968-06-01), Nerwin
patent: 3653315 (1972-04-01), Fukuda
patent: 3725692 (1973-04-01), Miller et al.
patent: 3774510 (1973-11-01), Johnson
patent: 3794822 (1974-02-01), Bergmans
patent: 3878385 (1975-04-01), Kingston
patent: 3979583 (1976-09-01), McCan
patent: 4077716 (1978-03-01), Gandini

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