| 摘要 |
<p>A metal layer (L1) is formed on an underlying substrate (3), and an interference coating layer (Ls) laminating coating layers (L2-L8) having different refractive indexes (n) is provided thereon. A transparent protective layer (L9) is formed on the surface of the interference coating layer (Ls). The interference coating layer (Ls) imparts wavelength-dependent intensity modulation to reflected light, and the quantity of reflected light is kept low by light absorption of the coating layers (L2, L4, L8) thus providing an exterior color having an unique tone of color. When the complex refractive index N of the coating layers (L2, L4, L8) is represented by "N=n-ik" using the refractive index n, an extinction coefficient k, and an imaginary number i, following relations are satisfied: "1.36=n=3.5" and "0.1=k=6"</p> |
