Exterior aircraft light unit and method of operating an exterior aircraft light unit
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United States of America Patent
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Sep 12, 2017
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N/A
app pub date -
Jul 23, 2014
filing date -
Jul 30, 2013
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Abstract
An exterior aircraft light unit for emitting light of a first wavelength and light of a second wavelength, different from the first wavelength, with corresponding emission characteristics is disclosed. The exterior aircraft light unit has at least one first light source configured to emit the light of the first wavelength, at least one second light source configured to emit the light of the second wavelength, and a wavelength selective optical element, which wavelength selective optical element is reflective for the light of the first wavelength and transparent for the light of the second wavelength.
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