André Ehrhardt,Werner Goebel,Bernhard Messerschmidt
申请号：
US15275692
公开号：
US10151915B2
申请日:
2016.09.26
申请国别(地区):
US
年份:
2018
代理人:
摘要：
An illumination arrangement according to the invention, in particular for an endoscope, comprises at least three light sources for generating a respective input light beam, and a beam combination device (5, 21), wherein the beam combination device (5, 21) comprises at least two beam splitters for combining the at least three input light beams to form an output light beam, at least three collimator lenses (7, 8, 9) embodied as GRIN lenses and serving for collimating and coupling a respective one of the input light beams into one of the beam splitters, and at least one further GRIN lens for coupling the output light beam into an optical waveguide. The invention also relates to a beam combination device and a method for coupling at least three input light beams into an optical waveguide, in particular into an optical waveguide of an endoscope.
