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Description Graphic illustratic the astigmatism phenomenon.
Date 11 June 2007
Source self-made/own work (created with Inkscape 0.44)
Author Sebastian Kosch ( Ginger Penguin)


I, Sebastian Kroch, the copyright holder of this work, hereby publishes it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.

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attribution share alike
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Attribution: I, Sebastian Kroch
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