Radio-wave-penetrable layer having metallic luster

Abstract

Disclosed is a coating layer penetrable by radio wave and having a metallic luster. The coating layer includes a resin layer as an outmost layer to an exterior or front, a metallic texture layer formed on a rear side of the resin layer and comprising a optical film layer including metal oxides having different refractive indexes, and a germanium (Ge) layer to reflect light and a reflection layer formed on the rear side of the metallic texture layer.

1 - 14 . (canceled) 
     
     
         15 . A method of producing a coating layer, comprising:
 washing and activating a surface of a resin layer using a plasma converted from argon gas;   radiating an electron beam using a first refractive material and a second refractive material to form a multilayered optical film layer on the surface of the resin layer,   radiating an electron beam using germanium to form a germanium layer.   
     
     
         16 . The method of  claim 15 , wherein the first refractive material comprises TiO 2  and/or Cr 2 O 3 . 
     
     
         17 . The method of  claim 15 , wherein the second refractive material comprises SiO 2 . 
     
     
         18 . The method of  claim 15 , wherein the germanium layer is formed on a front side of the multilayered optical film layer, on a rear side of the multilayered optical film layer, or between the first refractive material and the second refractive material.