Illumination device with an extended useable spectrum
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United States of America Patent
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Jun 14, 2016
Grant Date -
Jan 15, 2015
app pub date -
May 12, 2014
filing date -
May 14, 2013
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Abstract
An illumination device for irradiating objects with electromagnetic radiation is provided. The illumination device includes at least one light guide and a radiation source that emits electromagnetic radiation in the spectral region from 320 nm to 420 nm into the light guide. The light guide is formed of a glass that has a spectral transmittance of at least 70% at 350 nm and is selected from the system of lead-free silicate-tin glasses.
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