Electrodeless discharge lamp having a neon fill

Details Electrodeless discharge lamp having a neon fill Electrodeless discharge lamp having a neon fill

1995-09-25

1997-08-05

Pascal, Robert

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

315344, 315307, 315200A, H05B 4116

Patent

active

056546106

ABSTRACT:
An electrodeless neon discharge light source having a red color light output is provided for use in automotive applications. The light source has a lamp envelope containing a fill of neon gas which, when excited to a discharge state by introduction of an operating signal over a tuned circuit consisting of a resonant capacitor and a ferrite coil, produces a red color light output. A flash control input to a ballast circuit arrangement provides the ability to control the light output using bursts of high frequency sinusoidal energy. The use of the burst signal approach allows for providing varying levels of light intensity output thereby signifying the distinction between braking conditions and an on condition of the tail light. Furthermore, by controlling the rate of flashing of the light source, an indication of a hard braking or emergency condition, could be conveyed.

REFERENCES:
patent: 4119889 (1978-10-01), Hollister
patent: 4240010 (1980-12-01), Buhrer
patent: 5175476 (1992-12-01), Anderson et al.
patent: 5406177 (1995-04-01), Nerone
patent: 5412280 (1995-05-01), Scott et al.
patent: 5412288 (1995-05-01), Borowiec et al.
patent: 5465028 (1995-11-01), Antonis et al.
patent: 5523655 (1996-06-01), Jennato et al.

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