Arrangement for fan out of light guiding paths

Claim 1

Arrangement for the fanning out of parallel light beams into parallel light beams with changed spacing, which comprises a base plate (3) with an entry and an exit end face (1, 2) and onto which at least two light wave conductors (41 to 46) are applied, in each of which one of the parallel light beams is coupled in at one end face (5) and coupled out again at the other end face (5'), wherein the light beams are oriented perpendicularly to the entry and exit end faces (1, 2), characterised thereby that all light wave conductors (41 to 46) extend fan-shaped between entry and exit end faces (1, 2) as straight lines which do not intersect, that the end faces (5, 5') of the light wave conductors (41 to 46) are inclined relative to the axis of the respective light wave conductor (41 to 46) at least in a partial region and at least in the core region of the light wave conductor (41 to 46) and that the angle of inclination α i between the normals to the end faces (5, 5') and the normals to entry and exit faces (1, 2) results as follows: α i = arc sine (n · sine δ i /((1 - n · cos δ i )² + n² · sine² δ i) 1/2) wherein n is the refractive index of the light wave conductor and δ i is the angle between the normals to the entry and exit end faces (1, 2) and the axis of the respective light wave conductor (41 to 46).