Operating a lighting device having a plurality of light generating units
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United States of America Patent
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Jan 2, 2018
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N/A
app pub date -
Dec 1, 2014
filing date -
Dec 19, 2013
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Abstract
A method for operating a lighting device comprising n>1 light generating units configured to generate a respective primary light beam and comprising a phosphor surface spaced apart from the light generating units is provided. The method may include illuminating an i-th partial surface of the phosphor surface by i light generating units if a desired positive brightness value on this illuminated partial surface falls below or reaches a next higher i-th brightness threshold value from a group of n−1 positive, progressively increasing brightness threshold values; otherwise illuminating by n light generating units; wherein i and n are whole natural numbers and i=[1, . . . , n] holds true.
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