Fresnel lens: Revizyonlar arasındaki fark
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{{Commons kategori|Fresnel lenses}}
*[http://lighthousegetaway.com/lights/fresnel.html Lighthouse Getaway: Fresnel lens] (contains photographs.)
*{{Web kaynağı | url = http://www.terrypepper.com/lights/index.htm | yazar = Pepper, Terry | başlık = ''Seeing the Light: Lighthouses on the western Great Lakes'' | arşivurl = https://web.archive.org/web/20150608224529/http://www.terrypepper.com/lights/index.htm | arşivtarihi = 8 Haziran 2015 | erişimtarihi = 11 Şubat 2015 | ölüurl =
*[http://vega.org.uk/video/programme/226 How the Fresnel lens works.]
*[https://web.archive.org/web/20090520054046/http://www.digitalartform.com/archives/2009/04/fresnel_lens_-.html A computer analysis of the Fresnel lens cross section depicted in the 'graphic examples' section of this very Wikipedia article.]
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