A method for producing a polarization converter, flat plate type polarization converter and polarization converter element

摘要

The present invention relates to a method for producing a polarization converter, comprising the steps of generating a first converter element (11), comprising a base side (111), a parallel to the base side (111) extending upper side (112), as well as an obliquely at an angle ε₁ for the base side (111) oriented longitudinal side (114) or a curved longitudinal side; generating a second converter element (12), comprising a base side (121), a parallel to the base side (121) extending upper side (122) as well as an obliquely at an angle ε₂ for the base side oriented longitudinal side (124) or a curved longitudinal side; placing the first and second converter element (11, 12) in series in such a way that the obliquely oriented or curved longitudinal sides (114, 124, 1240) in opposite directions, wherein the first converter element (11) a length l₁ , and its upper side (111) a perpendicular to the longitudinal direction of the first converter element (11), a width w₁ ; and the second converter element (12) a length l₂ , and its upper side (111) a perpendicular to the longitudinal direction of the second converter element (12), a width w₂ has. In accordance with the present invention comprises the generation of the first and second converter element (11, 12) determining of such different lengths l₁ and l₂ as well as different widths w₁ and w₂ and / or different angles ε₁ and ε₂, that a first of all parallel to the base surfaces (111, 121) of the converter elements (11, 12) polarized light wave after passing through the first and second converter element (11, 12) perpendicular to the base surfaces (111, 121) of the converter elements is polarized.The present invention also relates to a flat plate type polarization converter as well as a polarization converter element.