发明授权
US08673187B2 Method of separating excess lens forming material from a molded ophthalmic lens, in particular a contact lens
有权
从模制的眼科镜片,特别是隐形眼镜分离多余的透镜形成材料的方法
- 专利标题: Method of separating excess lens forming material from a molded ophthalmic lens, in particular a contact lens
- 专利标题(中): 从模制的眼科镜片,特别是隐形眼镜分离多余的透镜形成材料的方法
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申请号: US12969689申请日: 2010-12-16
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公开(公告)号: US08673187B2公开(公告)日: 2014-03-18
- 发明人: Axel Heinrich , Bernhard Seiferling , Peter Hagmann
- 申请人: Axel Heinrich , Bernhard Seiferling , Peter Hagmann
- 申请人地址: CH Basel
- 专利权人: Novartis AG
- 当前专利权人: Novartis AG
- 当前专利权人地址: CH Basel
- 代理商 Robert Ambrose
- 主分类号: B29D11/00
- IPC分类号: B29D11/00
摘要:
There is described a method of separating excess lens forming material from a molded ophthalmic lens, in particular a contact lens. After polymerization and/or cross-linking of a lens forming material (P) within a mold cavity (4) of a mold (1) comprising female and male mold halves (2, 3) to form an ophthalmic lens non-polymerized and/or non-cross-linked lens forming material is flushed away from the mold halves (2, 3) with a jet of a fluid flushing medium, such as, e.g., water or a solvent or an inert gas. Subsequently the molded lens is dried. In accordance with the invention the flushing is accomplished with the mold halves (2, 3) still in the closed position. There is also described an apparatus for carrying out the method.
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