Sheet-surface analyser and method of analysing a sheet-surface

G - Physics – 01 – B

Patent

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G01B 11/30 (2006.01)

Patent

CA 2537846

The present invention relates to a sheet-surface analyser (10) including illuminating means (32) for casting shadows on the sheet-surface; capturing means (36) for capturing an image of the shadows; analysing means (40) for analysing the captured image to thereby analyse the sheet surface; and curving means (22) for curving the sheet, wherein the illuminating means and the curving means are configured to enable the illuminating means to cast shadows on a curved part of said sheet-surface, and the capturing means is configured to capture said shadow-image.

La présente invention a trait à un analyseur de la surface de feuille (10) comportant des moyens d'éclairage (32) pour projeter des ombres à la surface de feuille, des moyens de capture (36) pour la capture d'une image des ombres, des moyens d'analyse (40) pour l'analyse de l'image capturée en vue de l'analyse de la surface de feuille, et des moyens de formation de courbes (22) pour former des courbes dans la feuille, les moyens d'éclairage et les moyens de formation de courbes étant agencés à permettre au moyens d'éclairage de projeter des ombres sur une partie courbe de ladite surface de feuille, et les moyens de captures sont agencés pour la capture de ladite image ombrée.

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