Illuminating method in paint defect detecting machine

Abstract

To develop and provide an illuminating method for a paint defect detecting machine in which a camera section and an illumination section are provided on an integral base board to optimize the illuminating method for multiple curved surface areas of a vehicle body, thereby to minimize undetectable areas and increase areas detectable by the apparatus, whereby areas of inspection by the human eye are reduced to implement labor saving. An illuminating method for handling multiple curved surfaces in the paint defect detecting machine is configured such that an illumination section and a CCD camera section are integrated within a same base board; and the illumination section is configured such that high luminance LEDs are linearly arranged into a stripe form at fixed width interval, thereby to enable arrangement of the LEDs mounted onto the base board such that the distance to a coated surface from the center of a camera view field is the same as that from a CCD camera mounted in the center of the base board, wherein an integral unit of the illumination section formed from the thus arranged LEDs and the CCD camera(s) is moved by a robot unit such that the coated surface and the CCD camera are located perpendicular to each other.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1A and FIG. 1B are views showing an illumination unit for use in the present invention, in which FIG. 1A is a front view and FIG. 1B is a plan view;

FIG. 2 is a front view showing details of the illumination unit for use in the present invention;

FIG. 3A and FIG. 3B are views showing details of the illumination unit for use in the present invention, in which FIG. 3A is a front view and FIG. 3B is a side view;

FIG. 4 is a block diagram showing the entirety of a paint defect detecting machine of the present invention; and

FIG. 5 is a perspective view showing a conventional LED arrangement state.

Claims

1. An illuminating method for handling multiple curved surfaces in a paint defect detecting machine in the event of inspection of a coating defect inspection of a vehicle by using the paint defect detecting machine in accordance with an image processing technique, the method comprising the steps of: being configured such that an illumination section and a CCD camera section are integrated within a same base board, the illumination section being configured such that high luminance LEDs are linearly arranged into a stripe form at fixed width interval,being enable arrangement of the LEDs mounted onto the base board such that the distance to a coated surface from the center of a camera view field is the same as that from the CCD camera provided in the center of the base board, andmoving an integral unit of the illumination section formed from the thus arranged LEDs and the CCD camera(s) by a robot unit such that the coated surface and the CCD camera are located perpendicular to each other.