Method for identifying timber surface properties

Details Method for identifying timber surface properties Method for identifying timber surface properties

1981-12-24

1984-11-13

Rosenberger, R. A.

Optics: measuring and testing

By polarized light examination

Of surface reflection

G01N 2121

Patent

active

044822502

ABSTRACT:
A method for identifying timber surface properties by using linearly polarized light. The polarization plane of the incident radiation is selected according to the object. The intensity components I.sub.min and I.sub.max having perpendicular polarization planes of the scattered radiation are measured, where the polarization plane of the component I.sub.max is the same as that of the incident radiation. On the basis of the quantities I.sub.min and ##EQU1## conclusions are drawn about the surface properties of the examined surface.

REFERENCES:
patent: 3060793 (1962-10-01), Wells
patent: 3807868 (1974-04-01), Simila
patent: 3992571 (1976-11-01), Garlick et al.
Ward et al., "Correlation of Visual Luster with Measured Reflectance of Cotton Fabrics", Textile Research Journal, vol. 35, No. 3, Mar. 1965.

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