| 摘要 |
PURPOSE:To impart the high-grade sense sufficient as the ornaments without impairing rainbow color development by providing noble metals at the thickness to allow rugged ness to remain on the surface formed with the fine ruggedness formed in accordance with the intensity distribution of the interference fringes of laser beams on the surface of a metal, such as stainless steel. CONSTITUTION:The movement in both X and Y directions of an X-Y table T is cooper atively controlled or the optical axis direction of the interference beam B1 is changed by an optical control mechanism, such as X-Y scanner, by which scanning lines can be set to a curved shape or so set as to draw locis constituting intricate patterns. The fine ruggedness U1, U2 corresponding to the intensity distribution of the interfer ence fringes of the laser beams M1, M2 are formed on the surface of the metal M consisting of the stainless steel or Ni-Cr alloy. The noble metal film G is provided on the surface formed with such fine ruggedness U1, U2 at the thickness at which the ruggedness remains on the surface. Then, the unique beautiful ornamentation changing variously in tint like rainbow colors is applied on the surface and the noble metallic gloss specific to the noble metal G is produced as the scattering reflection of the surface inclusive of the ornamented part. The metallic ornaments having the extremely high sense are thus provided. |
