G - Physics – 03 – B
Patent
G - Physics
03
B
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.
347278
Brower Boyd G.
Shaffer John W.
Gte Sylvania Incorporated
R. William Wray & Associates
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