The invention concerns a transparent and polarizing viewing element (2) divided into several zones (2a, 2b). At least one of the zones (2a) is associated with a light polarizing filter. The light passing through the optical surface is affected differently for two of said zones (2a, 2b) depending on the polarizing direction of said light. The polarizing filter is obliquely oriented relative to a horizontal direction (H) in the operational position of the element (2; 5), with an angle between the filter orientation and said horizontal direction of 90 degrees and of 0 degree.