发明名称 Timepiece dial, method of manufacturing a timepiece dial, and a timepiece
摘要 A timepiece dial has excellent transparency to electromagnetic waves (radio and light), and an excellent appearance, a timepiece dial manufacturing method enables manufacturing the timepiece dial, and a timepiece has the timepiece dial. The timepiece dial 1 has a substrate 2 that is electromagnetically transparent, and a dispersion film 3 containing a dispersion of metal powder 31 with an average particle diameter of 5 mum@20 mum and an average particle thickness of 30 nm@50 nm. The average thickness of the dispersion film 3 is 0.5 mum@3.0 mum. The metal powder 31 is disposed with a specific gap therebetween in the through-thickness direction of the dispersion film 3.
申请公布号 US8427909(B2) 申请公布日期 2013.04.23
申请号 US201113208736 申请日期 2011.08.12
申请人 TAKASAWA KOKI;SEIKO EPSON CORPORATION 发明人 TAKASAWA KOKI
分类号 G04B19/06 主分类号 G04B19/06
代理机构 代理人
主权项
地址