G - Physics – 01 – N
Patent
G - Physics
01
N
73/58
G01N 21/17 (2006.01)
Patent
CA 1221853
TITLE Three Direction Measurement For Characterization Of a Surface Containing Metallic particles ABSTRACT OF THE DISCLOSURE An improved method for instrumentally characterizing the optical properties of a surface containing metallic particles such as a paint containing metallic flakes by using multiangular spectrophotanetric or colormetric measurements to derive color constants for the paint, wherein the improvement comprises using three multiangular measurements, preferably 15%, 45% and 110° as measured from the specular angle .
460653
E.i. Du Pont de Nemours And Company
Mccallum Brooks & Co.
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