The principle of the measurement is simple. The system is composed of 3 main elements:
- a polarization color camera (SAMBA) (1)
- a polarized illumination (2)
- a chin-rest (3)
Thanks to the polarization analysis, it is possible to visualize and save the different images (sum, specular, gloss and diffused) and the corresponding histograms.An example of product efficiency evaluation is given below.
Selecting a Region Of Interest (ROI) - as shown on the picture above - allows the calculation of the histogram and the quantification of the shine increase.
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