| 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> |
