Ophthalmic lens wafers and receiver for registering such wafers
    1.
    发明公开
    Ophthalmic lens wafers and receiver for registering such wafers 失效
    Opthalmisches透镜元件和装置用于对准这样的透镜元件

    公开(公告)号:EP0796724A3

    公开(公告)日:1997-11-19

    申请号:EP97104800.4

    申请日:1997-03-20

    IPC分类号: B29D11/00 B32B31/00

    摘要: Ophthalmic lens wafers for forming a composite lens are provided wherein each front lens wafer (16, 16') has a front registration pattern (18, 20, 18', 20') formed on its peripheral edge, and each back lens wafer (22, 22') has a back registration pattern (24, 26, 24', 26') formed on its peripheral edge which is different than the front registration pattern. Each registration pattern is oriented at a predetermined angle relative to any respective optical axis for facilitating alignment of such axes in accordance with a particular prescription. A receiver (10, 110, 210) for holding and registering the ophthalmic lens wafers defines at least one registration pattern which matches the registration pattern of either a front or back lens wafer, but not both. The registration pattern of the receiver may be formed by key pairs (28), recessed surface areas (128), and/or retractable switches (228) which are shaped and positioned relative to each other to mesh with a respective lens registration pattern.

    Ophthalmic lens wafers and receiver for registering such wafers
    2.
    发明公开
    Ophthalmic lens wafers and receiver for registering such wafers 失效
    Opthalmisches Linsenelemente und Vorrichtung zum Ausrichten solcher Linsenelemente

    公开(公告)号:EP0796724A2

    公开(公告)日:1997-09-24

    申请号:EP97104800.4

    申请日:1997-03-20

    IPC分类号: B29D11/00 B32B31/00

    摘要: Ophthalmic lens wafers for forming a composite lens are provided wherein each front lens wafer (16, 16') has a front registration pattern (18, 20, 18', 20') formed on its peripheral edge, and each back lens wafer (22, 22') has a back registration pattern (24, 26, 24', 26') formed on its peripheral edge which is different than the front registration pattern. Each registration pattern is oriented at a predetermined angle relative to any respective optical axis for facilitating alignment of such axes in accordance with a particular prescription. A receiver (10, 110, 210) for holding and registering the ophthalmic lens wafers defines at least one registration pattern which matches the registration pattern of either a front or back lens wafer, but not both. The registration pattern of the receiver may be formed by key pairs (28), recessed surface areas (128), and/or retractable switches (228) which are shaped and positioned relative to each other to mesh with a respective lens registration pattern.

    摘要翻译: 提供了用于形成复合透镜的眼镜片晶片,其中每个前透镜晶片(16,16')具有形成在其周边边缘上的前配准图案(18,20,18',20')和每个后透镜晶片(22 ,22')具有形成在其与前配准图案不同的周边的后对准图案(24,26,24',26')。 每个配准图案相对于任何相应的光轴以预定的角度定向,以便于根据特定处方方便这些轴的对准。 用于保持和配准眼科镜片晶片的接收器(10,110,210)限定了与前镜片晶片或后镜片晶片的配准图案匹配的至少一个配准图案,但不限于此。 接收器的配准图案可以由键对(28),凹入表面区域(128)和/或伸缩开关(228)形成,这些开关成形并相对于彼此定位成与相应的透镜配准图案啮合。