公开(公告)号：EP1862294A3

公开(公告)日：2012-07-25

申请号：EP07010754.5

申请日：2007-05-31

申请人： Coopervision International Holding Company, LP.

发明人： Bruce, Ian, CooperVision Inc. ,  Bailey, Stuart CooperVision Inc. ,  Oag, Rob, CooperVision Inc. ,  Saunders, Stephen, CooperVision Inc.

IPC分类号： B29D11/00 ,  B29C33/20

CPC分类号： B29D11/005 ,  B29C33/202 ,  B29L2011/0041 ,  Y10S425/808

摘要： Methods and systems are provided for making an ophthalmic lens. The present methods and systems are effecting in coupling two mold sections together at two or more discrete regions (57). Embodiments of the methods and systems form a bore (57) that extends completely through one of the mold sections (22) and only partially through the other mold section (24). During formation of the bore, the mold material in proximity to the bore being formed becomes molten and diffuses from the bore. A portion of the molten mold material is provided at a contact point between the two mold sections and when the molten material cools, the material forms a spot weld between the mold sections. By forming multiple hollow spot welds in a mold assembly, the two mold sections can be securely coupled to each other during the manufacture of an ophthalmic lens, such as a silicone hydrogel contact lens.

公开(公告)号：EP1862294A2

公开(公告)日：2007-12-05

申请号：EP07010754.5

申请日：2007-05-31

申请人： Coopervision International Holding Company, LP.

发明人： Bruce, Ian, CooperVision Inc. ,  Bailey, Stuart CooperVision Inc. ,  Oag, Rob, CooperVision Inc. ,  Saunders, Stephen, CooperVision Inc.

IPC分类号： B29D11/00

CPC分类号： B29D11/005 ,  B29C33/202 ,  B29L2011/0041 ,  Y10S425/808

摘要： Methods and systems are provided for making an ophthalmic lens. The present methods and systems are effecting in coupling two mold sections together at two or more discrete regions (57). Embodiments of the methods and systems form a bore (57) that extends completely through one of the mold sections (22) and only partially through the other mold section (24). During formation of the bore, the mold material in proximity to the bore being formed becomes molten and diffuses from the bore. A portion of the molten mold material is provided at a contact point between the two mold sections and when the molten material cools, the material forms a spot weld between the mold sections. By forming multiple hollow spot welds in a mold assembly, the two mold sections can be securely coupled to each other during the manufacture of an ophthalmic lens, such as a silicone hydrogel contact lens.

摘要翻译： 提供了用于制造眼科镜片的方法和系统。 目前的方法和系统正在将两个模具部分在两个或更多个离散区域（57）处连接在一起。 方法和系统的实施例形成了完全延伸穿过其中一个模具部分（22）并且仅部分地穿过另一模具部分（24）的孔（57）。 在孔的形成期间，靠近所形成的孔的模具材料变得熔化并且从孔扩散。 熔融模具材料的一部分设置在两个模具部分之间的接触点处，并且当熔融材料冷却时，材料在模具部分之间形成点焊。 通过在模具组件中形成多个中空点焊，在制造眼用透镜（例如硅酮水凝胶隐形眼镜）期间，两个模具部分可以彼此牢固地联接。