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Français : Cercle de reflexion
  • Lieu : musée de la Marine à Paris, France
  • Auteur : photo personnelle


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This file is unproperly named for it's a Mendoça's reflecting circle, as stated by Jean Randier in his book "L'instrument marine" ISBN 2-7003-0213-3, page 127. I reproduce the text commenting the very same instrument: "Cercle à reflexion de Mendoza. On distingue parfaitement les deux cercles gradués concentriques e l'étrier support des axesde ces deux cercles, caractéristiques dans ce type d'appareil, Grâce a ses deux poignées, le circle de Mendoza peut être utilisé pour la mesure des distances angulaires a plât aussi bien que verticales"

It may be compared with this "real" Borda-Lenoir Circle:

File:Cercle de reflexion img 2600.jpg

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File name cercle-reflexion-lenoir.jpg
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Mime type image/jpeg
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