Patent ID: 6816318
Filing Date: 2004-11-09
Classification: G02B

Abstract:
A beam shaping device for shaping the cross section of a light beam comprising at least one beam shaping unit with beam division means, beam deflection means and beam combination means, the beam division means being able to divide a light beam which is incident on the beam shaping unit into two component beams, the beam deflection means being able to deflect at least one of the component beams to the beam combination means, and the beam combination means being able to combine the two component beams, such that the cross section of the light beam emerging from the beam shaping unit compared to a cross section of the light beam entering the beam shaping unit is reduced in the first direction (X) and is enlarged in a second direction (Y, Z) which is perpendicular to it, wherein the beam combination means are also used as beam division means, only one of the component beams being deflected by the beam deflection means, conversely the other component beam being directly incident on the beam combination means.