BEAM SOURCE HAVING A LASER DIODE
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United States of America Patent
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Feb 1, 2018
app pub date -
Jul 25, 2017
filing date -
Jul 28, 2016
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Abstract
A beam source includes a laser diode having an emission surface for emitting a divergent beam, a carrier structure on which the laser diode is arranged such that the beam has, immediately downstream of the emission surface, a direction component parallel to a surface of the carrier structure that faces the laser diode, and a reflection prism with a transparent prism material having a refractive index np≧1.5. The diode and the prism are arranged relative to each other such that the beam from the diode is incident downstream on an entrance surface of the prism, travels through the prism material with a reduced aperture angle, and in the process is reflected away from the carrier structure at a reflection surface of the prism. The emission surface of the diode and the entrance surface of the prism have a distance from one another of at most 0.5 mm.
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