Improved connect switch for photoflash unit

G - Physics – 03 – B

Patent

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Details

315/12, 31/167,

G03B 15/03 (2006.01) G03B 15/04 (2006.01) H05K 1/00 (2006.01)

Patent

CA 1155816

ABSTRACT OF THE DISCLOSURE A multilamp photoflash unit having at least a pair of flashlamps, an electrical circuit arranged to fire the lamps individually and in sequence and a solid state radiation switch external of the lamps and adjacent thereto wherein the switch comprises an admixture of silver carbonate and/or silver oxide, electrically nonconductive inert particulate solids, a binder and not more than 10% by weight of sodium-containing material whereby the switch composition is desenistized by the sodium-containing material to avoid "burn-off" and/or "melt-through" of overlying insulating sheets.

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