At least one surface characteristic of a sample, e.g. gloss, refractive index, micro-roughness, macroroughness, colour shift, is determined by illuminating a surface of the sample with a collimated beam of light at an angle to the plane of the surface and using an imaging detector to record an intensity and angular distribution image of the light from the beam reflected from the surface.
|Translated title of the contribution||Measuring a surface characteristic|
|Patent number||US2007153285 (A1)|
|Publication status||Published - 5 Jul 2007|
Bibliographical noteExternal Body: Surfoptic Ltd
Other: Also published as WO2004097383(A1), EP1620712 (A1)