Color dichroic polarizers and method for the production thereof

摘要

In order to produce full-color dichroic polarizers, it is necessary to produce absorption bands with several absorption maxima. The absorption bands produced until now always had a simple band form which was determined by the form of the non-spherical particles deposited in the polarization layer. By briefly warming a partial layer of a layer that is provided with not totally relaxed non-spherical silver particles, an adjustment of a given axis ratio occurs only in this partial layer, while absorption bands with several absorption maxima can be produced by means of differently adjusted axis ratios in superimposed partial layers. Full-color polarizers can be produced in this manner by combining several such absorption bands in a pixel-form structure.