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File:Fresnel lampe.jpg - Wikimedia Commons
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Fresnelspiegel – Stoppi
Linse (Optik) – Physik-Schule
File:Fresnel.JPG - Wikipedia
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Sensors, Free Full-Text
File:Fourth order Fresnel lens, around 1900.jpg - Wikimedia Commons
Augustin-Jean Fresnel - Wikipedia
File:Fresnel double mirror.png - Wikipedia
Fresnel: Over 270 Royalty-Free Licensable Stock Vectors & Vector Art