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Une des premières lentilles de Fresnel
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Grande lentille de Fresnel à quatre pans
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Description de la photo
Titre: Petite lentille de Fresnel
Prise de:

Dans l'exposition sur les phares au Musée de la Marine à Paris en 2012.

Description:

Utilisé comme projecteur directionnel.

Données image
Image sizes: 2376*4224px, 4010kb
Origin: Originally a digital image, with postprocessing
Date/Time: 20120824-105657
Camera:
Author: André M. Winter
Photo copyright: This photograph is copyrighted (©) by André M. Winter and others. A free permissions for re-use may be given for non-commercial purposes. Commercial use requires a license. Contact André M. Winter for any kind of use. This extended copyright notice applies in all cases. Infringements always will be persecuted worldwide. Legal court: Innsbruck, Austria, E.U.
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