Electric lamp and discharge devices: systems – Pulsating or a.c. supply
Patent
1994-08-31
1996-06-04
Pascal, Robert
Electric lamp and discharge devices: systems
Pulsating or a.c. supply
315326, 315358, 315DIG2, 315DIG5, 313572, 313573, 313576, 313642, 313643, H05B 4116
Patent
active
055236553
ABSTRACT:
A nearly pure neon is described along with a method of operating the lamp. A phosphor is coated on the lamp wall. By properly stimulating the neon, ultraviolet light may be emitted, that can stimulate the phosphor to a first light emission. The lamp may then be operated to produce a visible light emission that is the result of neon emission or of intermediate combinations of the neon and phosphor emissions. A single neon lamp may then produce in one instance, an amber color, or in other instance, a red color without the cold environment problems typical of a mercury based lamp. The output efficiency is enhanced when the lamp is formed as an aperture lamp. The narrow source is also useful as a source in reflector and lens systems. High pressure neon lamps offer a small source size, direct color with no filtering, good tolerance of impact and jarring, moderate cost, and increased vehicle styling potential.
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English George J.
Jennato Scott D.
Rothwell, Jr. Harold L.
Meyer William E.
Osram Sylvania Inc.
Pascal Robert
Philogene Haissa
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