Sequential photoflash array and fabrication employing radiation-activated switches.

摘要

A self-sequencing multilamp photoflash array responsive to a low voltage source (31) includes radiation-responsive switches (35, 39) having a pair of electrical conductors (41, 43) spaced by a switch paste (49) comprising a heat sensitive silver compound, a powdered metal in stoichiometric excess and an organic binder. The array has a flashlamp (25) coupled to a pair of electrical conductors and a plurality of series connected flashlamps (33, 37) and radiant-responsive switches connected in parallel to the electrical conductors with each switch responsive to a previously energized flashlamp. Also, a process is provided for fabricating the switches and the array.