Luminescent diode chip with luminescence conversion element and angular filter element
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United States of America Patent
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Mar 26, 2013
Grant Date -
Apr 8, 2010
app pub date -
May 21, 2008
filing date -
May 30, 2007
priority date (Note) -
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Abstract
A luminescent diode chip includes a semiconductor body, which produces radiation of a first wavelength. A luminescence conversion element produces radiation of a second wavelength from the radiation of the first wavelength. An angular filter element reflects radiation that impinges on the angular filter element at a specific angle in relation to a main direction of emission back in the direction of the semiconductor body.
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