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公开(公告)号：US5106182A
公开(公告)日：1992-04-21
申请号：US588464
申请日：1990-09-24
CPC分类号： B29D11/00317 , G02C7/046
摘要： The invention is a method of printing a replica of the natural iris on a contact lens. The printing is done using a rubber printing member having up raised rubber radial segments having a radius of substantially the same as the contact lens. The printing ink is applied to the radial printing segments and the rubber stamp is applied to the lens. Pressure is then applied to the rubber stamp forcing the edges of the radial printing segments to move outward moving an amount of printing ink ahead of the advancing edge. The lens is rotated and the process is repeated forming a geometric pattern resembling the human iris.
摘要翻译： 本发明是一种在隐形眼镜上印刷天然虹膜的复制品的方法。 使用具有与隐形眼镜基本相同的半径的具有隆起的橡胶径向段的橡胶印刷构件进行印刷。 将印刷油墨施加到径向印刷段上，并将橡胶印记施加到透镜。 然后将压力施加到橡胶印章上，迫使径向印刷段的边缘向外移动，使一定量的印刷油墨在前进边缘之前移动。 旋转镜片，重复该过程，形成类似于人体虹膜的几何图案。
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公开(公告)号：US5066431A
公开(公告)日：1991-11-19
申请号：US511784
申请日：1990-04-20
CPC分类号： B29C41/045 , B29C41/36 , B29D11/00019 , B29K2105/0002 , Y10S425/808
摘要： The invention relates to a method of spin casting lenses having optical surfaces which may be spherical, aspherical or toric in shape. The method provides a concave optical mold having a spherical, aspherical or toric optical surface. A convex optical mold having a spherical, aspherical or toric surface is also privided. A selected liquid lens monomer with a selected catalyst is placed in the concave lens mold. The convex optical mold is positioned in the concave mold displacing the liquid lens monomer. The optical axis of the concave and convex molds are aligned and the two molds rotated about their concurrent optical axis. The liquid monomer is allowed to polymerize forming a solid polymer lens. The finished lens is then removed from the molds.
摘要翻译： 本发明涉及一种具有可以是球形，非球面或复曲面形状的光学表面的旋转铸造透镜的方法。 该方法提供具有球形，非球面或复曲面光学表面的凹形光学模具。 还有一个具有球形，非球面或复曲面表面的凸型光学模具。 将所选择的具有所选催化剂的液体透镜单体放置在凹透镜模具中。 凸型光学模具定位在移动液体透镜单体的凹模中。 凹凸模具的光轴对准，两个模具围绕其同时的光轴旋转。 使液体单体聚合形成固体聚合物透镜。 然后将成品镜片从模具中取出。
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公开(公告)号：US07279507B2
公开(公告)日：2007-10-09
申请号：US10937868
申请日：2004-08-02
申请人： Hopin Hu , Charles R. Briggs , Tung Nguyen , Hue Tran , Filene Rossberg
发明人： Hopin Hu , Charles R. Briggs , Tung Nguyen , Hue Tran , Filene Rossberg
IPC分类号： G02C7/04
CPC分类号： C08F291/18 , C08F265/04 , C08F271/02 , C08F283/00 , C08F283/12 , G02B1/043 , C08L51/00
摘要： An interpenetrating polymer network (IPN) composition and a process for the manufacture of hydrogel contact lens using the invention material. The polymeric materials are formed by polymerization of: (1) an unsaturated alkyl(meth)acrylate or its derivatives such as 2-hydroxyethyl methacrylate as the principle monomer; (2) optionally vinyl containing comonomer(s) to enhance the resulting hydrogel water absorbing capability; (3) polymerizable multi-functional crosslinking agent(s); (4) an irradiation initiator and/or thermal initiator; (5) optionally other additives to impart the resulting hydrogel specific properties such as ultra-violet blocking ability and handling colors; in the presence of a soluble, hydrophilic IPN agent such as polyvinylpyrrolidone (PVP) or poly-2-ethyl-2-oxazoline (PEOX) with a specific molecular weight range. The novel hydrophilic hydrogel material in the present invention can be used to produce a spherical contact lens, a toric contact lens, a multifocal contact lens, a toric-multifocal contact lens, and other medical devices. The inventive hydrogel material shows a low degree of surface friction, a low dehydration rate, and a high degree of biodeposit resistance.
摘要翻译： 互穿聚合物网络（IPN）组合物和使用本发明材料制造水凝胶隐形眼镜的方法。 聚合物材料通过以下方式聚合形成：（1）不饱和烷基（甲基）丙烯酸酯或其衍生物如甲基丙烯酸2-羟乙酯作为主要单体; （2）任选的含乙烯基的共聚单体以增强所得的水凝胶吸水能力; （3）可聚合多官能交联剂; （4）照射引发剂和/或热引发剂; （5）任选的其它添加剂以赋予所得水凝胶特异性如紫外阻挡能力和处理颜色; 在具有特定分子量范围的可溶性亲水性IPN剂如聚乙烯吡咯烷酮（PVP）或聚-2-乙基-2-恶唑啉（PEOX）的存在下进行。 本发明的新型亲水性水凝胶材料可用于制造球形隐形眼镜，复曲面隐形眼镜，多焦点隐形眼镜，复曲面多焦点隐形眼镜及其他医疗装置。 本发明的水凝胶材料表现出低的表面摩擦，低的脱水率和高的生物沉积抗性。
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