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Proceedings Paper

Achromatic And Sharp Focussing Of Laser Beams By Aspherics
Author(s): Gunter Schulz
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Paper Abstract

By two aspheric refracting surfaces, a two-wavelength laser beam can be focussed sharply at one axial point, that is, achromatically and without any spherical aberration. The focussing system may consist of a single lens (then one aspheric is conical at the axis) or of two single lenses with normal aspherics. The design principles for such systems are dealt with and examples of results are shown.

Paper Details

Date Published: 18 January 1985
PDF: 4 pages
Proc. SPIE 0473, Symposium Optika '84, (18 January 1985); doi: 10.1117/12.942433
Show Author Affiliations
Gunter Schulz, Akademie der Wissenschaften der DDR (Germany)

Published in SPIE Proceedings Vol. 0473:
Symposium Optika '84
Gabor Lupkovics; Andras Podmaniczky, Editor(s)

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