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    • 4. 发明公开
    • Packaging arrangements for contact lenses.
    • 隐形眼镜的包装安排。
    • EP1094008A3
    • 2001-05-02
    • EP00204463.4
    • 1996-09-27
    • JOHNSON & JOHNSON VISION PRODUCTS, INC.
    • Lust, VictorAbrams, Richard WayneBeaton, Stephen RobertRenkema, Kornelisvan der Meulen, WybrenWu, JongliangTsu-Fang Wang, Daniel
    • B65D1/34B65D77/20B65D75/32
    • B65D75/32B65D1/34B65D2585/545
    • A packaging arrangement for the sealed containment of at least one hydrophilic contact lens in a sterile aqueous solution, comprising at least one injection molded or thermoformed plastic base member (10;40) having a cavity (20;42;52) for containing a contact lens immersed in said solution, said base member (10;40) including a planar flange (12) extending outwardly about the periphery of the outer edge of said cavity (20;42;52), said cavity (20;42;52) consisting of an indentation extending from the plane of the upper surface of said flange (12), and a depending wall (48) projecting downwardly from a bottom surfact of said flange (12) closely inwardly of the peripheral edges (14,16) of said flange (12) and extending about at least portions of the periphery of said flange (12); characterised in that the upper surface (24) of said flange (12) has a raised surface area (22) extending about said cavity (20;42;52) for facing a superimposed cover sheet (36) in contacting relationship.
    • 一种用于在无菌水溶液中密封地容纳至少一个亲水性隐形眼镜的包装装置,包括至少一个注射成型或热成型塑料基体构件(10; 40),所述塑料基体构件具有腔体(20; 42; 52) (20; 42; 52)的外边缘周围向外延伸的平面凸缘(12),所述基座构件(10; 40) 包括从所述凸缘(12)的上表面的平面延伸的凹槽以及从所述凸缘(12)的底部表面向下突出到所述凸缘(12)的外围边缘(14,16)的下方的悬挂壁(48) 所述凸缘(12)并围绕所述凸缘(12)的至少部分周边延伸; 其特征在于,所述凸缘(12)的上表面(24)具有围绕所述空腔(20; 42; 52)延伸的凸起表面区域(22),用于以接触关系面向叠置的盖板(36)。
    • 8. 发明公开
    • Molding arrangement to achieve short mold cycle time
    • 成型安排可以缩短模具周期时间
    • EP0765734A3
    • 1997-10-15
    • EP96307061.0
    • 1996-09-27
    • JOHNSON & JOHNSON VISION PRODUCTS, INC.
    • Martin, Wallace AnthonyMenezes, Edgar V.Lust, VictorPhillips, Robert B.Wu, JongliangRenkema, Kornelisvan der Meulen, WybrenEshuis, Gerbrand
    • B29D11/00B29C45/00
    • B29D11/0048B29C33/306B29C33/3842B29C33/56B29C45/37B29C45/73B29C2045/7343B29C2045/7362B29D11/00028B29D11/00125B29D11/0023B29L2011/0016B29L2031/757Y10S425/808
    • An apparatus for molding polystyrene mold halves which are used, with a complementary mold halves, for subsequent molding of a soft contact lens such as a hydrogel soft contact lens. The apparatus is designed with superior heat conduction capacity so as to minimize the molding cycle time, while simultaneously producing uniformly precise and accurate optical quality surfaces. Molten polystyrene is provided via a hot runner system to a plurality of mold cavities, each of which is defined by first and second structural elements, the first having a convex surface and the other having a concave surface. In a specific variation, the convex surface provides the optical quality surface to the concave surface of the mold half produced thereby. The structural element which defines the convex surface includes a hollow cylindrical bushing and a removable power insert mounted therein, which may be changed so that the prescription strength of the contact lens to be formed by the mold may be varied. In a first embodiment, the power insert includes only a convex surface at its operational end. In a second embodiment, the power insert includes an annular flat surface surrounding the convex surface, defining at the junction therebetween a discontinuity of curvature, which imparts a sharp edge to the mold half formed thereby. The power insert may be constructed of pure steel, or alternatively, it may be made of brass, copper chromium, or cobalt-nickel alloyed martensitic steel. The power insert may be coated with a surface layer of nickel phosphor or silicone oxide, or chrome nitride. These layers may be turned to their proper thicknesses and dimensions by diamond cutters, and they may be thermally hardened.
    • 一种用于模制聚苯乙烯半模的设备,该设备与互补的半模一起使用,用于随后模制诸如水凝胶软隐形眼镜之类的软性隐形眼镜。 该设备设计具有优异的导热能力,从而最大限度地缩短成型周期时间,同时生产均匀精确和精确的光学质量表面。 通过热流道系统将熔融聚苯乙烯提供给多个模腔,每个模腔由第一和第二结构元件限定,第一结构元件具有凸表面并且另一个具有凹表面。 在一个具体的变化中,凸面为由此制造的半模的凹面提供光学质量表面。 限定凸面的结构元件包括中空圆柱形衬套和安装在其中的可拆卸电源插件,其可以改变,使得由模具形成的隐形眼镜的处方强度可以变化。 在第一实施例中,电源插件在其操作端仅包括凸面。 在第二实施例中,动力插入件包括环绕凸表面的环形平坦表面,在其之间的连接处限定曲率不连续性,其向由此形成的半模赋予尖锐边缘。 动力插入件可以由纯钢构成,或者可以由黄铜,铜铬或钴镍合金马氏体钢制成。 功率插件可以涂覆有镍磷光体或硅氧化物或氮化铬的表面层。 这些层可以通过金刚石切割机转变成适当的厚度和尺寸,并且它们可以被热硬化。