System and method of using fluorescent material to display information on a vehicle window
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United States of America Patent
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Jun 18, 2013
Grant Date -
Jan 26, 2012
app pub date -
Jul 22, 2010
filing date -
Jul 22, 2010
priority date (Note) -
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Abstract
A system to selectively display a symbol at a location on a vehicle window. The system includes an arrangement of a fluorescent material at the location, wherein the fluorescent material: a) is sufficiently transparent in the absence of ultraviolet (UV) light, b) fluoresces when illuminated with UV light, c) and has a shape corresponding to the symbol, and a UV light source configured to illuminate the location with UV light to display the symbol. Such a system may use unfocused UV light sources to illuminate the symbol shaped fluorescent material as opposed to focused UV light sources such as UV lasers.
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