Beam conversion element, apparatus for converting electromagnetic radiation, method for manufacturing beam conversion element, and method for converting electromagnetic radiation

摘要

The beam transformation element (1) has a radiation surface (2) and an output radiation surface. The radiation surface includes four cylinder segments (3). A respective longitudinal axis (4) of cylinder segment is formed non-parallel to the respective longitudinal axis of adjacent cylinder segment. The output radiation surface is formed mirror-symmetrically to radiation surface such that the distance between radiation surface and output radiation surface is two times greater than focal length of the cylinder segment. Independent claims are included for the following: (1) a method for manufacturing beam transformation element; and (2) a method for transforming electromagnetic radiation.