A DISCUSSION FOR REELECTING PROPERTIES OF CYLINDRICAL FIBER MODEL

Abstract

The reflecting behavior of fiber is an important factor to solve the reflecting properties of fabrics. The reflecting properties of fabrics based on reflection of model fiber are studied by Kikuchi, Jeflries, Kida and other authers. But these are treated on regular reflection from fiber surface and the reflecting properties of fabrics are not solved sufficiently.
In this paper, by means of approximation of geometrical optics, three reflecting and refracting elements (regular reflection, transmission and internal reflection) from cylindrical fiber model are computed when incident light is plane polarized.
The results obtained are as follows.
1. The phenomena where polarizing properties of goniometric reflecting curves from cylindrical fiber are of quite different shape between two experimental conditions (ray strike vertical and aligned to fiber axis) can be explained by polarizing behavier of three reflecting and refracting elements.
2. Internal reflection is in forcus at specially fixed angle and at this angle rainbow coloured surface are observed under sun light for fabrics of P. E. T. filament with circular cross section.