HAND HELD TREATMENT DEVICE
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United States of America Patent
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Nov 18, 2013
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Nov 19, 2012
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Abstract
A handheld device has an array of light sources, for example light emitting diodes. The array is divided into different groups and selection circuitry selects a group of energy sources to be driven at any given time. Control circuitry controls the selection so that the different groups of light sources are driven at different times.
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