Interferential method for determining the inclination angle of molecules in plane‐parallel liquid crystalline layers

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Abstract
The interferential method is presented for determining the inclination angle θ of molecules in homogeneously ordered plane‐parallel liquid crystalline layers. The essence of the method is the analysis of the changes in the layer transmission caused by the change in conditions of interference. The angle θ is calculated from the exact, explicit relation where from no limitations the size of the angle results. The measuring‐stand is described that enabled the method to be put into practice. The results for the PCB layer are presented by way of example.