Image:Lens1.png

维基百科，自由的百科全书

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Lens1.png‎ (523 × 345 画素, 档案大小： 7 KB, MIME type: image/png)

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[edit] Summary

Description	A positive lens. Español: Lente convergente. Los rayos paralelos procedentes del infinito convergen sobre el plano focal imagen.
Source	Originally uploaded to the English Wikipedia. Upload history: 17:37, 2 Dec 2004 . . DrBob (6757 bytes) (Reverted to earlier revision) 12:40, 23 Nov 2004 . . Spiff (9859 bytes) 00:33, 9 Oct 2004 . . DrBob (6757 bytes) (pngcrushed version) 11:49, 20 Jul 2002 . . (Automated conversion) (9208 bytes)
Date
Author	DrBob as claimed on en:User:DrBob/Figures
Permission	GNU FDL
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[edit] Licensing

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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来自“http://zh.wikipedia.org../../../l/e/n/Image%7ELens1.png_49a0.html”

Image:Lens1.png

维基百科，自由的百科全书

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[edit] Licensing

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