Device for optically measuring surface properties

Optics: measuring and testing – Inspection of flaws or impurities – Surface condition

Reexamination Certificate

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Reexamination Certificate

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10492564

ABSTRACT:
An apparatus for optical measurement of surface properties wherein a light spot is produced by an illumination device and reflected light is measured by a multiplicity of optical sensors. In the evaluation, the individual signals of sensors, at least a multiplicity of signals of comparatively small groups of sensors is taken into account. Thus, an extrapolation of the detection angle region is possible.

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