Patent ID: 6542248
Filing Date: 2003-04-01
Classification: G01B,G01N

Abstract:
A device for a quantified determination of the quality of structured surfaces comprising:a first optical means having at least one light source with light emitting therefrom being directed at a predetermined angle onto a measurement surface which is a portion of a surface to be measured, the measurement surface having at least a first surface section and a second surface section exhibiting a different visual characteristic dependent on the structure of said surface to be measured; a second optical means arranged at a predetermined angle to said measurement surface for receiving the light reflected from said measurement surface, whereby said second optical means has at least one photo sensor having at least one light-sensitive surface, whereby said at least one photo sensor emits an electrical measurement signal that is characteristic for said reflected light; evaluation means having at least one processor means and at least one memory means; an output means; wherein said first optical means and said second optical means are disposed such that said reflected light is influenced by the structure of said measurement surface; wherein a characteristic visual parameter of said measurement surface is determinable for said first and second surface sections; and wherein said evaluation means evaluates said reflected light and derives therefrom at least one structural parameter that is representative of at least one structure dependent characteristic of said surface to be measured.