| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a laser color marking method using nano particles of silver and capable of exactly controlling the particles. <P>SOLUTION: The laser color marking method includes the first step for producing a thin film of silver, and the second step for granulating the silver by irradiating the thin film of the silver with a laser beam. In this method, all of three primary colors can be produced by granulating the silver into nano-particles. Therefore, the full color marking is possible. Further, all of three primary colors can be produced only by one laser apparatus as is different from the case for producing the combination of three primary colors using a plurality of metals. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
