Apparatus for determining an orientation of a lens polarization axis of a polarized lens , comprising: - a light source for emitting non-polarized light , - a lens receiving section for receiving and holding the lens in place, - a polarizing filter , comprising a plurality of areas for passing light, each area being separated from the others, wherein each of the areas is a linear polarizer and at least two of the areas have a different polarization axis, wherein the polarizing filter is a polarizing filter disk comprising a solid and non-transparent disk body , wherein the areas are provided as windows in the disk body , wherein the lens receiving section and the polarizing filter are arranged such that light emitted by the light source successively passes through the polarizing filter and the lens receiving section , - a light intensity measuring device for receiving light of the light source which has passed the areas of the polarizing filter and the lens receiving section , wherein the light intensity measuring device is configured to detect different light intensities related to the respective areas of the polarizing filter , if a polarized lens is positioned in the lens receiving section , and - a control system to determine the orientation of the lens polarization axis of the polarized lens positioned in the lens receiving section based on the detected different light intensities of the respective areas in correlation with their respective polarization axes. - a light source for emitting non-polarized light , - a lens receiving section for receiving and holding the lens in place, - a polarizing filter , comprising a plurality of areas for passing light, each area being separated from the others, wherein each of the areas is a linear polarizer and at least two of the areas have a different polarization axis, wherein the polarizing filter is a polarizing filter disk comprising a solid and non-transparent disk body , wherein the areas are provided as windows in the disk body , wherein the lens receiving section and the polarizing filter are arranged such that light emitted by the light source successively passes through the polarizing filter and the lens receiving section , a plurality of areas for passing light, each area being separated from the others, wherein each of the areas is a linear polarizer and at least two of the areas have a different polarization axis, wherein the polarizing filter is a polarizing filter disk comprising a solid and non-transparent disk body , wherein the areas are provided as windows in the disk body , wherein the lens receiving section and the polarizing filter are arranged such that light emitted by the light source successively passes through the polarizing filter and the lens receiving section , - a light intensity measuring device for receiving light of the light source which has passed the areas of the polarizing filter and the lens receiving section , wherein the light intensity measuring device is configured to detect different light intensities related to the respective areas of the polarizing filter , if a polarized lens is positioned in the lens receiving section , and - a control system to determine the orientation of the lens polarization axis of the polarized lens positioned in the lens receiving section based on the detected different light intensities of the respective areas in correlation with their respective polarization axes. <EOS>