Colour detection apparatus

G - Physics – 01 – J

Patent

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Details

G01J 3/46 (2006.01) B07C 5/342 (2006.01) G01N 21/25 (2006.01) G07D 3/14 (2006.01) G07D 5/00 (2006.01) G07D 7/00 (2006.01) G07F 1/06 (2006.01)

Patent

CA 2229054

Colour detecting apparatus (10) suitable for detecting the colour of articles such as gambling chips. The apparatus (10) comprising a diffraction grid (28) for producing a plurality of spectra from light reflected off the article, with a visible detector (34) for measuring the reflective light substantially across the visible spectrum to permit comparison with previously read reflected light across the visible spectrum from an article of a known colour.

L'invention porte sur un appareil (10) de détection des couleurs adapté à la détection de la couleur d'objets tels que des jetons de jeux. L'appareil (10) comprend une grille de diffraction (28), destinée à produire plusieurs spectres à partir de la lumière réfléchie par l'objet, et un détecteur (34) de rayonnement visible pour mesurer la lumière réfléchissante, sensiblement dans tout le spectre visible, afin de rendre possible une comparaison avec une lumière réfléchie préalablement enregistrée, émise par un objet d'une couleur connue et lue précédemment dans le spectre visible.

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