公开(公告)号：EP0937277A1

公开(公告)日：1999-08-25

申请号：EP96902716.0

申请日：1996-01-19

申请人： The Lifestyle Company, Inc.

发明人： SEIDNER, Leonard ,  POSTER, Maurice

IPC分类号： B29D11 ,  G02C7

CPC分类号： G02C7/044 ,  B29D11/00086 ,  G02C7/042 ,  G02C7/043 ,  G02C2202/04

摘要： The lens is provided with an anterior side with a power curve defined in part by a central aspheric surface. An inner annular surface is contiguous with the central aspheric surface, and a second annular surface contiguous along a radially inner periphery with the inner annular aspheric surface. An outer annular surface contiguous along a radially inner periphery with the second annular aspheric surface. Each of the annular surfaces is concentric or coaxial with the central aspheric surface. The central aspheric surface corresponds to a distance vision correction zone. The inner annular surface is an aspheric surface corresponding to a progressive add zone with a standard eccentricity between approximately -1.5 and approximately -5.0. The second annular surface corresponds to a near vision correction zone, and the outer annular surface corresponds to a distant vision correction zone.

摘要翻译： 透镜设置有前侧，功率曲线部分地由中心非球面表面限定。 内环形表面与中心非球面相邻，以及沿着径向内周与内环形非球面相邻的第二环形表面。 沿着径向内周边与第二环形非球面相邻的外环形表面。 每个环形表面与中心非球面表面同心或同轴。 中心非球面对应于距离视力校正区域。 内环形表面是对应于逐渐加法区域的非球面表面，其标准偏心度在约-1.5和约-5.0之间。 第二环形表面对应于近视矫正区域，而外环形表面对应于远视觉校正区域。