发明名称 |
Apparatus and method for making ophthalmic lenses by vacuum lamination |
摘要 |
An apparatus (10) is provided for making ophthalmic lenses by vacuum lamination wherein a front lens wafer (20) is laminated to a back lens wafer (22) with a layer of adhesive (24) disposed within the interface between the two wafers forming a composite lens (18). An upper flexible, transparent sheet (12) is located on the top side of the composite lens (18), a lower flexible, opaque or transparent sheet (14) is located on the bottom side of the composite lens, and an approximately air-tight enclosure (16) is formed between the sheets for receiving the composite lens. A vacuum pump (36) draws the upper and lower flexible sheets into engagement with the composite lens to press the wafers together. A UV lamp (38) transmits radiation through the upper flexible sheet (12) and into the adhesive layer to cure the adhesive and form the composite lens (18). <IMAGE> |
申请公布号 |
EP0796719(B1) |
申请公布日期 |
1999.09.15 |
申请号 |
EP19970104799 |
申请日期 |
1997.03.20 |
申请人 |
GERBER COBURN OPTICAL, INC. |
发明人 |
WOOD, KENNETH O.;LOGAN, DAVID J.;INCERA, ALEXANDER FLAVIO |
分类号 |
B29C35/08;B29C65/00;B29C65/14;B29C65/52;B29C65/78;B29D11/00 |
主分类号 |
B29C35/08 |
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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