The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2014
Filed:
Dec. 16, 2008
Alexandre Joly, Cournon d'Auvergne, FR;
Jean-paul Zanella, Clermont-Ferrand, FR;
Alexandre Joly, Cournon d'Auvergne, FR;
Jean-Paul Zanella, Clermont-Ferrand, FR;
Michelin Recherche et Technique S.A., Granges-Paccot, CH;
Compagnie Generale des Etablissements Michelin, Clermont-Ferrand, FR;
Abstract
A device for evaluating the appearance of the surface of a tire (P) comprising a color linear camera () comprising means () for separating the light beam (F) reflected by the surface of said tire (P) and entering the camera () into at least two base colors (R, G, B) of given wavelength, so as to direct the light beam to as many sensors () capable of obtaining a basic image in gray level () for each of the base colors, as many lighting means () as base colors, said lighting means being oriented so as to light the surface to be evaluated at different angles, characterized in that each of the lighting means () emits a colored light (R, G, B) that differs from that of the other lighting means, and the wavelength of which corresponds substantially to the wavelength of one of the base colors selected by the camera.