发明名称 |
Spectacle lens |
摘要 |
A spectacle lens comprising: (i) being a finished lens produced by injection molding of an aromatic polycarbonate (ii) having substantially no weld line and (iii) having a surface accuracy such that the shift of a Moire interference fringe is not observed or a shift of 25 % or less of an interval between interference fringes is observed. <IMAGE>
|
申请公布号 |
EP1434080(A2) |
申请公布日期 |
2004.06.30 |
申请号 |
EP20040008339 |
申请日期 |
1999.04.20 |
申请人 |
TEIJIN CHEMICALS, LTD. |
发明人 |
GOTOH, KIYOHITO;ICHIOKA, HIROMI |
分类号 |
B29C45/56;(IPC1-7):G02C7/02;G02B3/00;B29D11/00;B29C45/70 |
主分类号 |
B29C45/56 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|