Multilamp photoflash unit having grounded reflector

Details Multilamp photoflash unit having grounded reflector Multilamp photoflash unit having grounded reflector

1978-09-13

1981-05-19

Tudor, Harold J.

Illumination

Photographic lighting

Plural light sources or light source supports

354143, 361411, 362 13, 362 16, G03B 1502

Patent

active

042688914

ABSTRACT:
A photoflash unit comprising a plurality of high-voltage type flashlamps mounted on a printed circuit board containing circuitry for sequentially igniting the flashlamps in response to successive high-voltage firing pulses applied thereto. One lead-in wire of each of the flashlamps is connected to a common circuit conductor. An electrically conductive reflector unit is positioned between the lamps and the circuit board. The reflector unit is grounded to the common circuit conductor by means of a dried paste of conductive material disposed at the interface between the reflector and common conductor. In this manner, the reflector unit functions as an electrostatic shield for the circuitry.

REFERENCES:
patent: 3725693 (1973-04-01), Anderson et al.
patent: 3934336 (1976-01-01), Morse
patent: 4064431 (1977-12-01), Cote
patent: 4093979 (1978-06-01), Kewley
patent: 4104706 (1978-08-01), Hanson et al.
patent: 4136375 (1979-01-01), Kewley
patent: 4152751 (1979-05-01), Sindlinger et al.
patent: 4156269 (1979-05-01), Armstrong
patent: 4164007 (1979-08-01), Audesse et al.
patent: 4189298 (1980-02-01), Shaffer

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