...A numerical model is programme to calculate, for realistic experimental configurations, effective Raman line strength functions, which find their way into depolarization ratios. The model is based on interlinked integrations over the angles in the light collection path, and a finite Raman source volume along the excitation laser beam. The model deals as well with the conditional aperture parameters, associated with more than one optical component in the light collection path. Finally, the model also takes into account polarization aberrations introduced by the sample cell windows.