METHOD FOR FORMING THIN FILM ON SYNTHETIC RESIN AND MULTILAYER FILM

摘要

A method for forming a thin film on synthetic resin in which adhesion of the thin film to the synthetic resin is enhanced by a relatively simple method. A protective metal layer is formed on synthetic resin and then one of 1 a semi-transparent metal mirror, 2 a total reflection metal mirror and 3 a transparent conductive film is formed thereon. Material of the protective metal layer is preferably selected from a group of Ti, Zr, Nb, Si, In and Sn and thickness of the protective metal layer is preferably set at 1 nm or above in order to ensure adhesion of the thin film to the synthetic resin. Since total transmittance of the multilayer film is lowered through absorption of light by the protective metal layer when a thick protective metal layer is employed, thickness of the protective metal layer is preferably set at 5 nm or below.