Multilamp photoflash unit with circuit crossover

Details Multilamp photoflash unit with circuit crossover Multilamp photoflash unit with circuit crossover

1979-09-10

1981-08-04

Lechert, Jr., Stephen J.

Illumination

Photographic lighting

Plural light sources or light source supports

362240, 362241, G03B 1502

Patent

active

042825580

ABSTRACT:
A photoflash unit comprising a linear array of flashlamps mounted on a printed circuit strip disposed within the longitudinal channel of an elongated housing member having an enclosing cover panel of light-transmitting material. The unit has connector terminals at opposite ends, and the linear array of flashlamps is divided into two groups disposed in opposite halves of the unit, each group of lamps being operated by the connector terminals at the remote end so as to reduce the red-eye photographic effect. The lamp-firing circuitry includes a pair of common circuit conductor runs respectively located on opposite halves of the printed circuit strip and on opposite sides of a common surface. An interconnecting jumper, or crossover, between the common circuit runs is provided through continuous conductive reflector surfaces on the housing channel which make contact with conductive deposits extending from the respective common circuit runs to the edge of the printed circuit strip.

REFERENCES:
patent: 3952320 (1976-04-01), Blount
patent: 4059387 (1977-11-01), Witterick et al.

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