Color blinking for domelights as a visibility enhancement technique
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United States of America Patent
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Issued Date -
Dec 7, 2006
app pub date -
Jun 3, 2005
filing date -
Jun 3, 2005
priority date (Note) -
Abandoned
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Abstract
A method and apparatus is disclosed for operating a multi-color LED domelight employing color blinking as a visibility enhancement technique. In the method, light is emitted having a first color, upon which light is intermittently emitted having a second color during the step of emitting light having a first color. All light is emitted through a common light-emitting surface defined by a domelight housing. The intermittent blinking of a different color light during or between the emission of the first color light enhances the visual perceptibility of the domelight device. In one embodiment, the first color is substantially red and the second color is substantially yellow. In another embodiment, the first color is substantially green and the second color is substantially magenta. In yet another embodiment, the first color is substantially blue and the second color is substantially white.
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