Subminiature photoflash lamp with spaced-apart, light-emitting p

Details Subminiature photoflash lamp with spaced-apart, light-emitting p Subminiature photoflash lamp with spaced-apart, light-emitting p

1980-05-05

1982-09-07

Favors, Edward G.

Combustion

Illuminating flash device, e.g., photographic bulb, etc.

Fuel charge within sealed transparent casing, e.g., bulb

431358, F21K 502

Patent

active

043481736

ABSTRACT:
A subminiature photoflash lamp which includes a pair of pyrotechnic charges centrally disposed in a parallel, spaced relationship within the lamp's plastic, light-transmitting envelope. Each charge is supported on a respective one of the ends of the lamp's ignition wires and is of a disklike, planar configuration. The parallel spacing of the planar charges provides maximum light output from the lamp by permitting "cross-talking" between both charges during simultaneous ignition thereof. The ignition can be accomplished by the application of a firing pulse such as might be provided by a piezoelectric element.

REFERENCES:
patent: 2289876 (1942-07-01), De Margitta
patent: 2290309 (1942-07-01), Aquilla
patent: 4059389 (1977-11-01), Armstrong et al.
patent: 4204834 (1980-05-01), Fohl

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