G - Physics – 03 – B
Patent
G - Physics
03
B
240/76
G03B 15/03 (2006.01) G03B 15/04 (2006.01) H05K 1/00 (2006.01)
Patent
CA 1163974
D-23,-45 PHOTOFLASH UNIT WITH REFLECTOR RECESSES FOR CIRCUIT BOARD SWITCHES ABSTRACT OF THE DISCLOSURE A photoflash unit comprising a plurality of 2n flashlamps attached to a printed circuit board and disposed in a linear array with the longitudinal axes of respective lamps aligned in parallel. The circuit board has a substantially rectangular portion with n spaced apart extensions projecting vertically from a longer side thereof, the extensions being located being alternate lamps of the linear array. Each extension contains portions of circuit patterns bridged by a mass of switch material to provide a solid state radia- tion switch on each extension and adjacent to a respective lamp for receiving radiant energy emitted by that lamp. The unit further includes a plurality of reflector cavities within each of which a respective one of the flashlamps is nested. Each reflector cavity includes a recessed rear wall section for accomodating a circuit board extension, such that each of the extensions are disposed be- tween a respective lamp envelope and the recessed rear wall of the associated reflector. With the lamp contiguous with an upper por- tion of each reflector cavity and each circuit board extension con- tiguous with a recessed lower portion of a respective cavity, sub- stantially equal predetermined spacings are maintained between the switches of the n extensions and the alternate lamp envelopes associated therewith.
392456
Broadt David R.
Kackenmeister Carl F.
Gte Products Corporation
R. William Wray & Associates
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