Method and system for inspecting tire surface

Details Method and system for inspecting tire surface Method and system for inspecting tire surface

2007-10-23

2011-11-15

Chowdhury, Tarifur (Department: 2886)

Optics: measuring and testing

Shape or surface configuration

C382S141000, C073S146000, C356S237100, C356S237500

Reexamination Certificate

active

08059279

ABSTRACT:
Disclosed is a tire surface inspecting technique capable of surely discriminating rubber pieces of a quality different from that of a tire embedded in the surface of the tire by vulcanization from the tire. A first illuminating unit11include paired first light projectors11aand11bthat project light respectively from opposite sides toward an objective line L on a tire T. A second illuminating unit12include paired second light projectors12aand12bthat project light respectively from opposite sides toward the objective line L in a direction different from that in which the first illuminating unit11project light. The first illuminating unit11and the second illuminating unit12operate alternately for illumination. The line camera3forms an image of a part of the surface of the tire corresponding to the objective line L in synchronism with the respective illuminating operations of the first and second illuminating unit. Illumination and image formation are repeated for different parts of the surface of the tire that are moved successively to a position corresponding to the objective line L. Images formed by the line camera are analyzed for the inspection of the surface of the tire T.

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Supplementary European Search Report dated Nov. 24, 2009 (7 pages).

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