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1 April 2022 Precision molded laser-line generators
Martin Forrer, Eckhard Langenbach, Andreas Kunz, Aline Dotta, Hans Forrer, Rita Schlaginhaufen, Bernd Granzin
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Proceedings Volume PC11982, Components and Packaging for Laser Systems VIII; PC1198207 (2022) https://doi.org/10.1117/12.2610733
Event: SPIE LASE, 2022, San Francisco, California, United States
Abstract
Laser-line generators, known as Powell lenses are used in laser materials processing and optical metrology, among other applications. Powell lenses fan a collimated light beam in one direction in such a way that a linear rectangular distribution ("top hat") results in the far field. While such elements can be well analyzed and optimized with ray-optical calculations for long lines, the wave nature of the light has to be considered for short lines. Calculation methods based on both approaches are presented and it is investigated for which line lengths which method is suitable Relevant results for lenses produced by glass precision molding are presented.
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Martin Forrer, Eckhard Langenbach, Andreas Kunz, Aline Dotta, Hans Forrer, Rita Schlaginhaufen, and Bernd Granzin "Precision molded laser-line generators", Proc. SPIE PC11982, Components and Packaging for Laser Systems VIII, PC1198207 (1 April 2022); https://doi.org/10.1117/12.2610733
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KEYWORDS
Lenses
Light sources
Testing and analysis
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