File:Lentille de fresnel.jpg

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Français : Lentille à échelons ou lentille de Fresnel. Grande optique de premier ordre de feu fixe à éclats réguliers; Anonyme; 1870; Bronze et cristal; H. 254 x Diamètre 198 cm; Poids 1500 kg environ; Exposé Paris, palais de Chaillot; Musée national de la Marine, , Paris, France.
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current22:25, 5 February 2006Thumbnail for version as of 22:25, 5 February 20061,250 × 1,576 (495 KB)Pline (talk | contribs)Lentille à échelons ou lentille de Fresnel *Lieu : Musée de la marine, Paris, France *Auteur : Photo personnelle Category:Lighthouses

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