Four zone multifocal lenses
    13.
    发明授权
    Four zone multifocal lenses 失效
    四区多焦点镜片

    公开(公告)号:US07377638B2

    公开(公告)日:2008-05-27

    申请号:US10440967

    申请日:2003-05-19

    IPC分类号: G02C7/06

    CPC分类号: G02C7/066 G02C7/06 G02C7/061

    摘要: The present invention provides multifocal lenses containing at least four zones of different refractive power. The zones are positioned such that the wearer is able to use the inferior-most portion of the lens to more clearly, as compared to conventional multifocal lenses, view objects at distances more than 45 cm from the eye.

    摘要翻译: 本发明提供了包含至少四个不同屈光力区域的多焦点透镜。 这些区域被定位成使得佩戴者能够更清楚地使用透镜的最下部分,与常规多焦点透镜相比,在距离眼睛超过45厘米的距离处观察物体。

    Method for designing progressive addition lenses
    14.
    发明授权
    Method for designing progressive addition lenses 有权
    逐渐增加镜片的设计方法

    公开(公告)号:US06956682B2

    公开(公告)日:2005-10-18

    申请号:US10606391

    申请日:2003-06-26

    IPC分类号: G02C7/02

    CPC分类号: G02C7/028 G02C7/061

    摘要: The invention provides a method for designing progressive surfaces and lenses produced using image blur to construct a merit function. The shape of a lens surface, or surfaces, is arbitrarily defined and optimized to minimize the image blur based merit function.

    摘要翻译: 本发明提供一种用于设计使用图像模糊产生的渐进表面和透镜以构建优点功能的方法。 透镜表面或表面的形状被任意地定义和优化,以使基于图像模糊的功能函数最小化。