专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20060055876A1 Method of manufacturing a contact lens 有权
标题翻译：隐形眼镜的制造方法
公开(公告)号：US20060055876A1
公开(公告)日：2006-03-16
申请号：US10522443
申请日：2003-07-23
申请人： William Hall , Joseph Lindacher , Giberto Hernandez , Nelson Baity , Donald McKillop
发明人： William Hall , Joseph Lindacher , Giberto Hernandez , Nelson Baity , Donald McKillop
IPC分类号： G02C7/02
CPC分类号： G02C7/024 , B29D11/00038 , G02B3/00 , G02C7/04 , G02C7/048
摘要： The present invention provides a method for converting a desired lens design to a geometry of a contact lens, preferably a customized contact lens or a contact lens having a complex surface design, to be produced in a computer-controlled manufacturing system. The method comprises: providing a lens design of a contact lens having a central axis, an anterior surface and an opposite posterior surface; projecting a predetermined number of points within a predetermined surface tolerance onto a surface of the lens design along each of a desired number of evenly-spaced semi-diameter spokes, each spoke radiating outwardly from the central axis; and for each of the spokes, generating a semi-meridian which is continuous in first derivative and includes a series of arcs and optionally straight lines, wherein each arc is defined by fitting at least three consecutive points into a spherical mathematical function within a desired concentricity tolerance, wherein each of the straight lines is obtained by connecting at least three consecutive points.
摘要翻译：本发明提供了一种用于将期望的透镜设计转换成在计算机控制的制造系统中产生的隐形眼镜，优选具有复杂表面设计的定制隐形眼镜或隐形眼镜的几何形状的方法。该方法包括：提供具有中心轴线，前表面和相对后表面的隐形眼镜的透镜设计; 将预定表面公差内的预定数量的点沿所需数量的均匀间隔开的半直径轮辐中的每一个将透镜设计的表面投影到每个轮辐上，每个轮辐从中心轴线向外辐射; 并且对于每个轮辐，产生连续的一阶导数的半子午线，并且包括一系列弧和任选的直线，其中每个弧通过将至少三个连续的点拟合成期望的同心度内的球形数学函数公差，其中通过连接至少三个连续点来获得每条直线。

IPRDB

热门服务

关于我们

友情链接

联系方式