Combustion – Illuminating flash device – e.g. – photographic bulb – etc. – Fuel charge within sealed transparent casing – e.g. – bulb
Patent
1976-06-30
1978-11-21
Dority, Jr., Carroll B.
Combustion
Illuminating flash device, e.g., photographic bulb, etc.
Fuel charge within sealed transparent casing, e.g., bulb
362 15, F21K 502
Patent
active
041264096
ABSTRACT:
The invention relates to a flash array provided with a number of high voltage combustion flash lamps which each cooperate with a single reflector sheet of an electrically conducting material. This reflector sheet is provided with holes; when a lamp is flashed a radiation-sensitive switching contact is affected via one of the holes.
According to the invention the radiation-sensitive contacts open responsive to radiation. These contacts and the reflectors are connected to one another via a low-ohmic connection and whereby further a lamp, whose turn has not yet come, is short circuited. These measures result in the fact that the chance for premature ignition of a lamp is extremely small.
REFERENCES:
patent: 3523931 (1970-10-01), Cote et al.
patent: 3668468 (1972-06-01), Kornrumf et al.
patent: 3951582 (1976-04-01), Holub et al.
patent: 3988647 (1976-10-01), Bolon et al.
Bok Johannes G.
Roelevink Bauke J.
van Werkhoven Jan
Dority Jr. Carroll B.
Smith Robert S.
Trifari Frank R.
U.S. Philips Corporation
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