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Patent
Title
Dielektrisches Pinhole zur Ortsfrequenzfilterung von Laserstrahlen
Other Title
Spatial-frequency filtering device for spatial-filtering laser beam, has transmission body with pinhole-forming unit forming pinhole that is arranged adjacent to body, where unit has diffractive or refractive deflecting structure.
Abstract
Die Erfindung bezieht sich auf eine Ortsfrequenzfiltervorrichtung zur Ortsfrequenzfilterung von Laserstrahlung. Diese weist einen fuer die Laserstrahlung zumindest teilweise transparenten Transmissionskoerper und ein an dem Transmissionskoerper angrenzend angeordnetes oder in den Transmissionskoerper integriertes, Pinhole bildendes bzw. eine Apertur aufweisendes Element auf, wobei das Pinhole bildende Element eine diffraktive und/oder eine refraktive Ablenkstruktur aufweist.
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WO2006058749 A UPAB: 20060629 NOVELTY - The device has a transmission body (4) at its end, where the transmission body is partially transparent to a laser radiation. The transmission body has a pinhole-forming unit that forms a pinhole (7) or an aperture. The pinhole or the aperture is arranged adjacent to the transmission body or is integrated in the transmission body. The pinhole-forming unit has a diffractive or a refractive deflecting structure. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for spatial-filtering of the laser beam. USE - Used for spatial-filtering laser beam (claimed) ADVANTAGE - The pinhole permits filtering and elimination of unwanted laser beam part with high accuracy, efficiency, very high laser performance and high divergence of laser beam without destroying the pinhole or the Spatial-frequency filtering device.
Inventor(s)
Kley, E.B.
Kaempfe, T.
Tuennermann, A.
Link to:
Patent Number
102004058044
Publication Date
2006
Language
German