PURPOSE: To enhance durability and scratch resistance by successively laminating and bonding a base coat film, a permselective film and a high hardness inorg. compound to the surface of a transparent resin base material.

CONSTITUTION: A base coat film 2, a permselective film 3 and a high hardness inorg. compound 4 are successively formed to a resin base material 1. The above mentioned permselective film 3 is formed by applying three layers of transparent oxide 31 having a high refractive index, a metal membrane 32 and the transparent oxide 31 having said high refractive index to the base coat film 2. As the resin base material, a molded material composed of an org. high-molecular substance having high transparency such as an acrylic resin, polycarbonate or polystyrene is used. The base coat film 2 is based on a polyfunctional acrylic resin, melamine, an urethane resin or the like. As the high hardness inorg. compound 4, a high hardness material transparent in a visible light region and having excellent close adhesiveness to transparent oxide having a high refractive index, being a substrate, for example, SiO2, SiO or Al2O3 is used.