Hybrid illumination system having a blue laser diode, dichroic mirror and yellow transmissive phosphor converter for generating white light
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United States of America Patent
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Jan 16, 2018
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N/A
app pub date -
Jun 26, 2015
filing date -
Jun 26, 2014
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Abstract
An illumination apparatus is provided that includes a yellow phosphor converter to receive a blue laser light beam and to convert a portion of the blue laser light beam to yellow light, a dichroic mirror optically coupled to the yellow phosphor converter to receive the phosphor-emitted light beam and to filter the phosphor-emitted light beam to provide a dichroic-filtered light beam, the dichroic mirror configured to pass yellow light and to reflect at least some blue light, and a blue light source optically coupled to the dichroic mirror to provide a blue light beam, the dichroic mirror configured to reflect the blue light beam in a same direction as the dichroic-filtered light beam.
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