Patent ID: 8786836

Claim:
A measurement device for the determination of one or more properties of a measured object, wherein the measurement device comprises: at least one optical radiation source for emitting optical radiation to the measured object, and at least one detector for receiving radiation reflected from the measured object and for generating an electric signal proportional to an intensity of the reflected radiation, characterized in that the measurement device in addition comprises an emitted optical radiation processing unit, which is adjusted to split the optical radiation emitted by the at least one optical radiation source to separate wavelengths and to direct said separate wavelengths to the measured object in a direction that differs from a normal direction of a surface being measured so that at least a shortest said wavelength and a longest said wavelength of said emitted optical radiation are focused on different depths, in the normal direction of the surface being measured, a reflected optical radiation processing unit, which is adjusted to receive the reflected radiation at least in a direction of specular reflection that differs from the normal direction of the surface being measured, and to direct the received optical radiation to said at least one detector, wherein the measurement device is adjusted to analyze the electric signal produced by the detector, and to determine at least a characteristic describing a surface property of the measured object, based on an intensity of the wavelength of the emitted radiation, a focus point of which was located on the measured surface, and thus was reflected from that focus point to the detector as a strongest specular geometry wavelength.