Progressive lens
    41.
    发明授权
    Progressive lens 有权
    渐进镜头

    公开(公告)号:US06793340B1

    公开(公告)日:2004-09-21

    申请号:US10089781

    申请日:2002-06-20

    CPC classification number: G02C7/063 G02C7/061 G02C2202/08

    Abstract: A progressive ophthalmic lens including a far vision zone, a near vision zone and an intermediate vision zone is provided having a relatively high, relatively wide near vision zone and a relatively wide intermediate zone. A surface correction(s) for reducing optical aberrations in peripheral regions of the lens may be provided within a pair of generally horizontally disposed opposed segments approximately ±22.5° above and below a generally horizontally axis passing through a fitting cross. Two or more progress ophthalmic lenses differing in prescribed addition power may be placed in series to provide a range of distance prescriptions for one or more of emmetropes, hyperopes and myopes. A method of designing the progressive ophthalmic lens is also disclosed.

    Abstract translation: 提供包括远视区,近视区和中间视觉区的渐进式眼科镜片,其具有相对较高,相对较宽的近视区和相对较宽的中间区。 用于减少透镜外围区域中的光学像差的表面校正可以设置在大致水平布置的相对的一对大致±22.5°的上方和下方大致水平的轴线之间,穿过配合十字。 两个或更多个不同规定附加功率的进行中的眼科镜片可以串联放置,以提供一个或多个正视眼,远视镜和近视镜的距离处方范围。 还公开了一种设计渐进式眼科镜片的方法。

    Stokesia plant named `Purple Parasols`

    公开(公告)号:USPP10660P

    公开(公告)日:1998-10-27

    申请号:US828652

    申请日:1997-03-31

    Abstract: A distinct cultivar of Stokesia plant named `Purple Parasols`, characterized by its vigorous plant growth habit and moderate growth rate; large, showy inflorescences; ray florets that initially are light blue, becoming darker blue, then bluish purple to reddish purple and dark hot pink with further development; numerous inflorescences per plant; and good container, cut flower and garden performance.

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