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Beam guidance and/or formation device for divergent laser radiation, has optically transparent medium exhibiting total internal reflection in shape of light guidance funnel
Beam guidance and/or formation device for divergent laser radiation, has optically transparent medium exhibiting total internal reflection in shape of light guidance funnel
The beam guidance and/or formation device has an optically transparent medium receiving the laser radiation which is subjected to total internal reflection at a boundary surface of the optically transparent medium, which is in the shape of a light guidance funnel (1). The funnel wall has a maximum diameter (D) at the laser radiation input region, and the laser radiation propagates in the direction of the tapering funnel diameter.
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