Patent ID: 9535002
Date: 2017-01-03
CPC Classifications: G01J,G01N

Claim:
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 second viewing angle is different than the first viewing angle, and 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 and evaluates the first color value of the light reflected by the first point of the line and the second color value of the light reflected by the second point of the line depending on the first and the second viewing angles, respectively.