HOMOGENIZER WITH REDUCED INTERFERENCE

The invention relates to a method for creating a target intensity distribution (20) in a target field (3) from a first input light beam (4) propagating in a first propagation direction and a second input light beam (5), whereby said first input light beam (4) and said second input light beam (5) ent...

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Bibliographische Detailangaben
Hauptverfasser:	MUENZ, HOLGER, EGGER, RAFAEL
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS SPECIALLY ADAPTED THEREFOR BASIC ELECTRIC ELEMENTS CINEMATOGRAPHY CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DEVICES USING STIMULATED EMISSION ELECTRICITY ELECTROGRAPHY HOLOGRAPHY MACHINE TOOLS MATERIALS THEREFOR METAL-WORKING NOT OTHERWISE PROVIDED FOR OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS ORIGINALS THEREFOR PERFORMING OPERATIONS PHOTOGRAPHY PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES PHYSICS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	The invention relates to a method for creating a target intensity distribution (20) in a target field (3) from a first input light beam (4) propagating in a first propagation direction and a second input light beam (5), whereby said first input light beam (4) and said second input light beam (5) entering a light entrance surface (6a, 6b) of a cylindrical lens array (1a) of a homogenizer. According to the invention said second input light beam (5) propagates in a second propagation direction differing from said first propagation direction. The invention further relates to an optical system for creating a target intensity distribution (20) in a target field (3) comprising: a first light source for generating a first input light beam (4) and a second light source for generating a second input light beam (5), or a single light source for generating a light beam and a beam splitter for splitting said light beam into said first input light beam and said second input light beam, a first directing device for directing said first input light beam (4) to propagate in a first propagation direction and a ho mogenizer having a cylindrical lens array (1a) with a light entrance surface (6a, 6b) for being entered by said first input light beam (4) and said second input light beam (5). According to the invention there exists a second directing device for directing said second input light beam (5) propagating in a second propagation direction differing from said first propagation direction when entering said light entrance surface (6a, 6b). L'invention concerne un procédé pour créer une distribution d'intensité cible (20) dans un champ cible (3) à partir d'un premier faisceau lumineux d'entrée (4) se propageant dans une première direction de propagation et un second faisceau lumineux d'entrée (5), ledit premier faisceau lumineux d'entrée (4) et ledit second faisceau lumineux d'entrée (5) pénétrant dans une première surface d'entrée de la lumière (6a, 6b) d'un réseau de lentilles circulaires (1a) d'un homogénéisateur. Selon l'invention, ledit second faisceau lumineux d'entrée (5) se propage dans une seconde direction de propagation différente de ladite première direction de propagation. L'invention concerne en outre un système optique pour créer une distribution d'intensité cible (20) dans un champ cible (3) comprenant : une première source lumineuse pour générer un premier faisceau lumineux d'entrée (4) et une seconde source lumineuse pour générer un second faisceau lumineu