Keywords: Angular aperture.svg Diagram illustrating the numerical aperture of a thin lens Transferred from http //en wikipedia org en wikipedia; transfer was stated to be made by User Moxfyre <br/> Original text Based on commons Image Numerical aperture svg self-modified 23 24 24 January 2008 UTC <br/> 2009 04 16 first version ; 2008 01 24 last version Moxfyre Original uploader was Moxfyre at http //en wikipedia org en wikipedia Released into the public domain by the author Made with Inkscape en wikipedia Moxfyre original upload log page en wikipedia Angular_aperture svg 2009-04-16 16 29 Moxfyre 568×450× 17785 bytes <nowiki>fonts -> DejaVu using an external editor</nowiki> 2008-01-24 23 46 Moxfyre 568×450× 13195 bytes <nowiki>Made variable names consistent between and articles</nowiki> 2008-01-24 23 24 Moxfyre 568×450× 13189 bytes <nowiki> Based on Image Numerical aperture svg self-modified ~~~~~ made with Inkscape </nowiki> Angles geometry Geometric optics Optics diagrams |