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Sun 6 Feb, 2005 12:34 am
I have found only one reference to electro-illuminescence as it applies to home and commercial lighting, and that was a forum post from sometime in 2000...it also said it couldn't be done yet.
Thurday, Paul Harvey mentioned a lightbulb which uses this electro-illuminescence. Being that I'm in the lighting sort of business, I'd like to learn more about it.
Thanks for your help!
General Tsao
About 55 years ago Sylvania Electric marketed a long life night light that only used 1/50 th of a watt, so it produced a barely usable amount of light. They called it electroluminescence. It was a capacitor with one transparent plate. 117 volts ac 60 hertz was applied which caused the dielectric to glow faintly. The one I had was 2 inches in diameter, perhaps only 4 centimeters of lighted area. It developed random black spots, perhaps electric surges caused arc overs or micro organisms degraded the dielectric and/or the transparent electrode. Sylvania hoped to market large wall panels for lighting purposes, but apparently abandoned the project because of the unsightly black spots and/or high production costs. Neil
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