Lensa Fresnel: Perbedaan antara revisi

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Robot: Perubahan kosmetika
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== Referensi ==
{{Reflist}}
* "The Fresnel Lens." The Keeper's Log (Winter 1985), pp. 12–14.
* [http://www.uscg.mil/History/weblighthouses/aton_lighthousebib2007.pdf Lighthouses, Lenses, Illuminants, Engineering & Augustin Fresnel: A Historical Bibliography on Works Published Through 2007], United States Coast Guard.
* [[United States Coast Guard]], ''Aids to Navigation'', (Washington, DC: [[U.S. Government Printing Office]], 1945).
* {{cite uscgnavbib}}
* [http://www.uscg.mil/history/weblighthouses/docs/CG_Classical_Lens_in_Operation.pdf United States Coast Guard, Fresnel Lenses Still in Operation.]
{{Commons category|Fresnel lenses}}
* [http://lighthousegetaway.com/lights/fresnel.html Lighthouse Getaway: Fresnel lens] (contains photographs.)
* {{cite web|url=http://www.terrypepper.com/lights/index.htm |author=Pepper, Terry|title=''Seeing the Light: Lighthouses on the western Great Lakes''}}
* [http://vega.org.uk/video/programme/226 How the Fresnel lens works.]
* [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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