H - Electricity – 05 – B
Patent
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B
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H05B 41/34 (2006.01) G03B 15/04 (2006.01) H05K 1/00 (2006.01)
Patent
CA 1123485
LD-7524 ABSTRACT OF THE DISCLOSURE A photoflash lamp unit is described having a plurality of flash lamps fired individually and in sequence. The unit includes a plurality of solid state switches, each convertible from a high electrical resistance state to a low electrical resistance state upon activation by either radiant energy or a high voltage pulse. The switch material includes an admixture of a metallic silver source with a sufficient amount of a metal-containing material to convert the switch to the low electrical resistance state by the high voltage pulse used to flash the individual lamps. by using switch material which is voltage-responsive as well as responsive to radiant energy supplied from an adjacent flash lamp the switch is more reliably converted to the low electrical resistance state.
314833
Chevali Harihar D.
Evans Thomas A.
Company General Electric
Eckersley Raymond A.
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