发明名称 |
Composite opthalmic lens. |
摘要 |
<p>An improvement in the epoxy plastic element of a laminated, glass-plastic, ophthalmic lens structure, and a method of effecting the improvement, are disclosed. The improved element is cast from a casting mix in which the ingredients are maintained in certain relationships to each other to provide an optically clear casting essentially free of striations. The cast material is gelled at a low temperature not over about 100 DEG C, and may then be cured at a temperature up to 200 DEG for a period of at least two hours. <IMAGE></p> |
申请公布号 |
EP0477658(A2) |
申请公布日期 |
1992.04.01 |
申请号 |
EP19910115333 |
申请日期 |
1991.09.11 |
申请人 |
CORNING INCORPORATED |
发明人 |
FRETZ, EDWARD ROBERT, JR.;OLSZEWSKI, ANTHONY RICHARD |
分类号 |
B32B17/10;C08J3/24;C08L63/00;G02B3/00;G02C7/02 |
主分类号 |
B32B17/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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