Controlled charging of a photoluminescent material
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United States of America Patent
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app pub date -
Aug 25, 2005
filing date -
Aug 27, 2004
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Abandoned
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Abstract
A method and apparatus for controlled charging of photoluminescent materials are provided. The method involves receiving a signal associated with an operating property of a luminescent system and determining if the signal satisfies an operating criterion. Electromagnetic energy is provided to the photoluminescent material until an ambient light level in proximity to the system exceeds a predefined level. The system includes a photoluminescent material and a sensor for detecting an operating property of the luminescent system. The system includes a control module for selectively illuminating the photoluminescent material based on the operating property until the ambient light level in proximity to the luminescent system exceeds a predefined level.
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