METHOD FOR PRODUCING CONTACT LENSES
    1.
    发明公开
    METHOD FOR PRODUCING CONTACT LENSES 有权
    制造隐形眼镜的方法

    公开(公告)号:EP1732750A2

    公开(公告)日:2006-12-20

    申请号:EP05751675.9

    申请日:2005-03-23

    IPC分类号: B29D11/00 B29C33/20

    摘要: The invention provides an improved process in which minimal force is required to separate mold halves so as to minimize lens damages resulted from the forced separation of mold halves. The process of the invention comprises: providing a mold including a first mold half having a first molding surface and a second mold half having a second molding surface, wherein the first and second mold halves are configured to receive each other such that a mold cavity is formed between the first and second molding surfaces, wherein one of the first and second mold halves has a collar that encircles the other mold half to provide a seal between the two mold halves when the mold is closed; dispensing a specific amount of a polymerizable lens-forming material into one of the mold halves; mating the mold halves to close the mold; polymerizing said polymerizable material located between the two mold halves, thereby forming a molded contact lens; applying a small force to the collar to distort the collar, thereby breaking the seal between the two mold halves; and opening the mold.

    摘要翻译: 本发明提供了一种改进的方法,其中需要最小的力来分离半模,从而最小化因半模的强制分离而导致的透镜损伤。 本发明的方法包括:提供包括具有第一模制表面的第一半模和具有第二模制表面的第二半模的模具,其中第一半模和第二半模配置为彼此接收,使得模腔是 形成在所述第一和第二模制表面之间,其中所述第一和第二半模中的一个具有套环,所述套环环绕另一个半模以在所述模具闭合时在所述两个半模之间提供密封; 将特定量的可聚合镜片形成材料分配到半模之一中; 配合半模以闭合模具; 聚合位于两个半模之间的所述可聚合材料,由此形成模制隐形眼镜; 向套环施加小的力以使套环变形,由此破坏两个半模之间的密封; 并打开模具。

    METHOD FOR PRODUCING CONTACT LENSES
    2.
    发明公开
    METHOD FOR PRODUCING CONTACT LENSES 有权
    制造隐形眼镜的方法

    公开(公告)号:EP1965968A2

    公开(公告)日:2008-09-10

    申请号:EP06841170.1

    申请日:2006-12-27

    IPC分类号: B29D11/00 B29C37/00

    摘要: The invention provides an improved method for producing contact lenses, in particular silicone-hydrogel contact lenses. The improvement includes the use of a vacuum force to transport lens molds (110) to and from a hot water de-blocking process, as well as the respective vacuum system.

    摘要翻译: 本发明提供了一种生产隐形眼镜,特别是硅酮 - 水凝胶隐形眼镜的改进方法。 改进包括使用真空力将透镜模具(110)输送到热水去封闭过程以及从相应的真空系统输送。

    METHOD FOR PRODUCING CONTACT LENSES
    4.
    发明授权
    METHOD FOR PRODUCING CONTACT LENSES 有权
    用于制造隐形眼镜

    公开(公告)号:EP1732750B1

    公开(公告)日:2008-05-21

    申请号:EP05751675.9

    申请日:2005-03-23

    申请人: Novartis AG

    IPC分类号: B29D11/00 B29C33/20

    摘要: The invention provides an improved process in which minimal force is required to separate mold halves so as to minimize lens damages resulted from the forced separation of mold halves. The process of the invention comprises: providing a mold including a first mold half having a first molding surface and a second mold half having a second molding surface, wherein the first and second mold halves are configured to receive each other such that a mold cavity is formed between the first and second molding surfaces, wherein one of the first and second mold halves has a collar that encircles the other mold half to provide a seal between the two mold halves when the mold is closed; dispensing a specific amount of a polymerizable lens-forming material into one of the mold halves; mating the mold halves to close the mold; polymerizing said polymerizable material located between the two mold halves, thereby forming a molded contact lens; applying a small force to the collar to distort the collar, thereby breaking the seal between the two mold halves; and opening the mold.