POLARIZING ELEMENT

摘要

Polarizing element (1) having a first layer (3) and a second layer (5). When an unpolarized light beam is incident on the element (1), the direction of at least one of the polarization components of the unpolarized beam will be influenced by the first layer (3). These polarization components have different directions of polarization. The second layer influences the direction of a polarized beam incident thereon. A polarization-rotating layer (7) is present between the first layer (3) and the second layer (5). By means of such an element (1), an unpolarized beam can be substantially completely converted into a polarized beam having mainly the same direction of polarization.