General Electric Company

Juliana Pinkasovich

James M Hanson

Vaughn C Sterling

An improved solid state radiant energy switch device is described for operation with a plurality of flash lamps fired individually and in sequence and which is activated by radiant energy generated during flashing of the lamps to convert from a high electrical resistance ('off' condition) to a low electrical resistance or conductive state ('on' condition). Said switches are prepared from an improved material composition which undergoes chemical conversion comprising a carbon-containing silver salt admixed with a humidity-resistant organic polymer binder in ratios wherein said polymer binder does not exceed more than about three percent by weight in said admixture.

Switching devices for photoflash unit

A planar-type multiple photoflash array is disclosed and including a circuit board with circuitry thereon for sequentially firing a plurality of flash lamps which are positioned horizontally in the cavities of an integral reflector and barrier member supported on said circuit board. The present improvement comprises further including spacing means between the contact and surfaces of the circuit board and barrier member to reduce the amount of radiant energy being transmitted by the flash lamps to radiant energy actuated switches and the circuitry of the circuit board member.

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South Euclid, OH, United States of America

Juliana Pinkasovich