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    • 3. 发明公开
    • CONTACT LENSES WITH OFF-CENTER SPHERE SURFACE
    • KONTAKTLINSEN MIT DEZENTRALENSPHÄRISCHENOBERFLÄCHEN
    • EP1476783A1
    • 2004-11-17
    • EP03711888.2
    • 2003-02-13
    • Novartis AGNovartis Pharma GmbH
    • YE, MingMCKENNEY, Curtis, Dean
    • G02C7/04
    • G02C7/028G02C7/04G02C2202/04G02C2202/08
    • The present invention provides a contact lens comprising a convex surface and a concave surface, one or both of the surfaces comprising: a) a central optical zone that is an aspherical sub-surface; b) a transition zone that is adjacent to said central optical zone, wherein and is a rotationally symmetric off-center sphere sub-surface; and c) a peripheral zone that comprises one or more sphere sub-surfaces, wherein all sub-surfaces are tangent to each other. By having a transition zone of the present invention, flexion points at the junction of optical zone with peripheral zone can be eliminated. The present invention also provides a method for producing a contact lens of the present invention.
    • 本发明提供了一种隐形眼镜,其包括凸面和凹面,一个或两个表面包括:a)中心光学区,其是非球面子表面; b)与所述中心光学区相邻的过渡区,其中并且是旋转对称的偏心球子表面; 以及c)包括一个或多个球形子表面的周边区域,其中所有子表面彼此相切。 通过具有本发明的过渡区域,可以消除光学区域与周边区域的接合处的弯曲点。 本发明还提供了本发明的隐形眼镜的制造方法。