Device for inspecting a material provided with a coated surface and related method

摘要

A device for inspecting a material with a coated surface includes a light source disposed above the surface that emits light in a wavelength range, at least one first camera for determining a color value of detected light reflected from the surface and an evaluation device. The first camera is disposed above a line located on the surface and configured with a first aperture to detect light from a first point of the line at a first viewing angle and light from a second point separate from the first point at a second viewing angle. The first camera determines a first color value of the first point light and a second color value of the second point light and the evaluation device compares the first and second color values or a color value difference with a predefined color setpoint value or predefined color setpoint value range.

主权项

1. A device for inspecting a material provided with a coated surface, comprising:
a light source disposed above the surface that emits light in a predefined wavelength range in the direction of the surface; at least one first camera disposed above a line located on the surface, tilted relative to the light source and configured with a first aperture for detecting light reflected from the surface at a first point on the line at a first viewing angle and detecting light reflected from the surface at a second point of the line, which is spaced apart from the first point, separately at a second viewing angle, wherein the camera determines a first color value of the light reflected by the first point and a second color value of the light reflected by the second point; and an evaluation device that is connected to the at least one first camera and compares the first color value and the second color value or a difference between the first color value and the second color value with a certain predefined color setpoint value or with a certain predefined color setpoint value range.