Measurement of birefringence of biaxially oriented films

Richard S. Stein

Journal of Polymer Science · 1957 · 100 citations · 0 references

Concepts

Abstract

Abstract A technique for characterizing the optical properties of biaxially oriented films is described. This involves measuring the optical retardation as a function of the tilt angle of the film. The method is illustrated for a film of biaxially oriented polystyrene.