System and method of using fluorescent material to display information on a vehicle window
First Claim
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1. A system to selectively display a symbol at a location on a vehicle window, said system comprising:
- an arrangement of a fluorescent material within the location, wherein the fluorescent material;
a) is sufficiently transparent in the absence of ultraviolet (UV) light to not interfere with seeing through the vehicle window, b) fluoresces when illuminated with UV light, c) and has a shape configured to define the shape of the symbol; and
a UV light source characterized as unfocused and configured to illuminate the location with uniform intensity UV light to display the symbol within the location.
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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.
250 Citations
17 Claims
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1. A system to selectively display a symbol at a location on a vehicle window, said system comprising:
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an arrangement of a fluorescent material within the location, wherein the fluorescent material;
a) is sufficiently transparent in the absence of ultraviolet (UV) light to not interfere with seeing through the vehicle window, b) fluoresces when illuminated with UV light, c) and has a shape configured to define the shape of the symbol; anda UV light source characterized as unfocused and configured to illuminate the location with uniform intensity UV light to display the symbol within the location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of selectively displaying a symbol within a location on a vehicle window, said method comprising the steps of:
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providing a fluorescent material at the location, wherein the fluorescent material;
a) is sufficiently transparent in the absence of ultraviolet (UV) light to not interfere with seeing through the vehicle window, b) fluoresces when illuminated with UV light, c) and has a shape configured to define the shape of the symbol; andilluminating the location with UV light characterized as unfocused and configured to illuminate the location with uniform intensity UV light to display the symbol within the location. - View Dependent Claims (16, 17)
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Specification