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    • 12. 发明授权
    • Process of spincasting a compound contact lens
    • 旋转复合隐形眼镜的过程
    • US5300262A
    • 1994-04-05
    • US970587
    • 1992-10-29
    • Robert E. Glick
    • Robert E. Glick
    • B29C41/04B29D11/00
    • B29D11/00115B29C41/045B29K2105/0002B29L2011/0016B29L2011/0025B29L2011/0033
    • The process of reproducibly making a wholly spuncasted, non-truncated, ballasted soft contact lens containing a compound anterior surface. The process comprises spincasting a polymer-forming, lens forming monomeric mixture in a cavity mold having a surface that is offset to allow for generation of a prismatic ballast, a compound curvature and a central axis that is symmetrical to the peripheral edge of the lens being formed. This is done by rotating the monomer mixture in the mold whereby the mixture replicates the mold's surface while at the same time undergoes polymerization and forms a prismatic lens with the central axis of its posterior surface symmetrical to its peripheral edge, a corneal bowl free of the compound curvature and possessing a thickness profile that is asymmetrical with respect to its geometric center.
    • 可重复地制造包含复合前表面的完全喷射的非截断的压载软性隐形眼镜的过程。 该方法包括将形成聚合物的透镜形成单体混合物旋转在具有偏移表面的腔模具中,以允许产生棱镜镇流器,复合曲率和与透镜的周边边缘对称的中心轴线 形成。 这通过在模具中旋转单体混合物来完成,由此混合物复制模具的表面,同时进行聚合并形成棱柱透镜,其后表面的中心轴线与其周边边缘对称,角膜碗不含 具有相对于其几何中心不对称的厚度分布。
    • 20. 发明授权
    • Cast molding of intraocular lenses
    • 人造眼镜的铸造成型
    • US5620720A
    • 1997-04-15
    • US346974
    • 1994-11-29
    • Robert E. GlickJim DeaconBruce W. Kent
    • Robert E. GlickJim DeaconBruce W. Kent
    • B29C33/00B29C33/30B29D11/00B29D11/02
    • B29D11/00057B29C33/0038B29C33/303B29D11/023A61F2/16B29L2011/0016Y10S425/808
    • The invention provides a disposable plastic mold assembly for an intraocular lens or the optic body thereof, which is inexpensive, less labor intensive than prior art intraocular lens molding techniques, and produces an intraocular lens having smooth, polished edges which require little or no post-mold finishing work. Numerous innovative features of the invention include an edge design which assures a seal between the male and female molds to thereby minimize flash during the cast molding operation, and the provision of a way to pre-align the male and female molds during assembly, consisting of an interference fitting relationship between the male and female molds. An additional feature is a way to maintain contact between the male and female molds during casting, which particularly involves the provision of a negative draft angle on the inner surface of the female mold's outer wall, or, alternatively, texturing which is applied to that inner surface so that it engages the outer edge at the top of the male mold during assembly. Yet another important feature of the invention is a structure for achieving axial and rotational orientation to produce lens edge geometries without unwanted steps on the lens edge. The alignment is achieved with interlocking steps on the male and female molds. The interlocking elements may be pins or annular elements.
    • 本发明提供了一种用于眼内透镜或其光学体的一次性塑料模具组件,其便宜,比现有技术的眼内透镜模制技术更少劳动密集度,并且产生具有光滑抛光边缘的眼内透镜,其需要很少或不需要后视镜, 模具加工工作。 本发明的许多创新特征包括边缘设计,其确保阳模和阴模之间的密封,从而在铸造模制操作期间最小化闪光,并且提供在组装期间预对准阳模和阴模的方式,包括 男模和女模之间的干涉配合关系。 另外的特征是在铸造期间保持阳模和阴模之间的接触的方式,其特别涉及在阴模的外壁的内表面上提供负的拔模斜度,或者替代地,施加到内模的内纹 表面,使得其在组装期间与阳模的顶部处的外边缘接合。 本发明的另一个重要特征是用于实现轴向和旋转取向以产生透镜边缘几何形状而在镜片边缘上没有不必要的步骤的结构。 在阳模和阴模之间通过互锁步骤实现对准。 互锁元件可以是销或环形元件。