POLARIZATION ELEMENT AND METHOD FOR PREPARATION THEREOF

摘要

A method for preparing a polarization element (10), characterized in that it comprises forming an undercoat film (12) on a transparent (glass) substrate (11), applying a dispersion liquid containing a metal on the undercoat film (12), heating the dispersion liquid containing a metal to thereby reduce a noble metal ion in the dispersion liquid and form a film (13) containing metal particles (14) dispersed therein. The metal particles (14) are localized in the vicinity of an interface surface (16) between the undercoat film (12) and the film (13) having metal particles, by their action with the undercoat film (12). The polarization element exhibits good adhesion between the films formed as mentioned above and can be formed as an element having a large area.