Patent ID: 7986461

Claim:
A device for shaping laser radiation which has sub-beams ( 3 ) spaced apart in a first direction (X) perpendicular to the propagation direction (Z) of the laser radiation, in particular for shaping laser radiation which is output by a laser diode bar ( 1 ), comprising a first refractive interface ( 8 ) differently deviates at least a multiplicity of the sub-beams ( 3 ) of the laser radiation to be shaped, so that they travel at least partially converging together after passing through the first interface ( 8 ) more than before passing through the first interface ( 8 ), a second refractive interface ( 9 ) through which the laser radiation passes after having passed through the first interface ( 8 ), the second interface ( 9 ) deviates at least some of the sub-beams ( 3 ) so that their convergence is reduced; and two substrates ( 6 , 7 ) arranged successively but spaced apart from one another in the propagation direction (Z) of the laser radiation; the first and second of the refractive interfaces ( 8 , 9 ) respectively comprise a multiplicity of mutually inclined surfaces ( 14 , 17 ), at least one of the sub-beams ( 3 ) passes through each of the surfaces ( 14 , 17 ); the mutually inclined surfaces ( 14 , 17 ) of each of the two refractive interfaces ( 8 , 9 ) are arranged respectively on at least one cylindrical contour ( 12 , 13 , 15 , 16 ); the at least one cylindrical contour ( 12 , 13 ) on the first refractive interface ( 8 ) is shaped convexly and the at least one cylindrical contour ( 15 , 16 ) on the second refractive interface ( 9 ) is shaped concavely; the first refractive interface ( 8 ) is an entry surface of the first substrate ( 6 ) and the second refractive interface ( 9 ) is an exit surface of the second substrate ( 7 ).