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    Preform for attaching a holding member to an optical lens, and method of using it
    2.
    发明授权
    Preform for attaching a holding member to an optical lens, and method of using it 失效
    用于将保持构件附接到光学透镜的预成型件及其使用方法

    公开(公告)号：US5669807A

    公开(公告)日：1997-09-23

    申请号：US642359

    申请日：1996-05-03

    申请人： Jacques Moreau ,  Jean Perrin

    发明人： Jacques Moreau ,  Jean Perrin

    IPC分类号： B24B13/005 ,  B24B29/00

    CPC分类号： B24B13/005

    摘要： A preform for attaching a holding member to an optical lens comprises a base constrained to rotate with the optical lens to be machined by a low melting point metal coupling layer cast in situ and a superstructure capped by a drive tool. The edge of the base is inwardly offset relative to the superstructure. This enables the coupling layer to form around it a bearing surface that can be gripped by the drive tool. The preform is used to attach holding members to optical lenses, in particular ophthalmic lenses.

    摘要翻译： 用于将保持构件附接到光学透镜的预成型件包括被限制为与要由原位铸造的低熔点金属耦合层加工的光学透镜一起旋转的基体和由驱动工具封盖的上部结构。 底座的边缘相对于上部结构向内偏移。 这使得耦合层能够在其周围形成可被驱动工具夹持的支承表面。 预成型件用于将保持构件附接到光学透镜，特别是眼镜。