Production year
1922
© Fonds historique / CNRS Images
19000001_0310
Appareil de projection Lenouvel pour le cinéma, photographié le 26 janvier 1922. Office national des recherches scientifiques et industrielles et des inventions. Cet appareil innove en réunissant, dans un même système optique, la projection cinématographique et la projection fixe. Cela permet un meilleur rendement lumineux, puisque la totalité du flux lumineux qui traverse le condenseur concourt à l'éclairement de l'image.
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1922
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