ELECTRIC BULB
PROBLEM TO BE SOLVED: To improve the appearance of a lighting device using an electric bulb where a color film is arranged on a glass tube so as to output a functional color. SOLUTION: An electric bulb 1 is provided with a color film 10 on a glass tube 6 filling a filament 8 so as to output a functi...
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Main Authors | , , |
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Format | Patent |
Language | English |
Published |
12.04.2002
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Edition | 7 |
Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To improve the appearance of a lighting device using an electric bulb where a color film is arranged on a glass tube so as to output a functional color. SOLUTION: An electric bulb 1 is provided with a color film 10 on a glass tube 6 filling a filament 8 so as to output a functional color, and a silver or white semitransmitting film 11 formed on a part or a whole of the surface of the color film. |
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Bibliography: | Application Number: JP20000303467 |