Device for shaping laser radiation
First Claim
1. 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), comprisinga 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;
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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).
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Accused Products
Abstract
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) which can differently deviate 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), and furthermore comprising a second refractive interface (9) through which the laser radiation can pass after having passed through the first interface (8), the second interface (9) being able to deviate at least some of the sub-beams (3) so that their convergence is reduced.
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Citations
14 Claims
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1. 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). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. 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 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 refractive interface (8); - and
a second refractive interface (9) through which the laser radiation passes after having passed through the first refractive interface (8), the second refractive interface (9) deviates at least some of the sub-beams (3) so that their convergence is reduced; at least one of the first and second of the refractive interfaces comprises a plurality of mutually inclined surfaces;
the plural mutually inclined surfaces at least partially adjoin one another in the first direction;
the plural mutually inclined surfaces of each of the two refractive interfaces are arranged respectively on at least one convex cylindrical contour; andangles between the plural mutually inclined surfaces increase or decrease in the first direction from an outer edge region of the at least one convex cylindrical contour to a middle of the at least one convex cylindrical contour.
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Specification