Scan lens and an optical scanner system incorporating two deflectors
    5.
    发明授权
    Scan lens and an optical scanner system incorporating two deflectors 失效
    扫描透镜和包含两个导流板的光学扫描仪系统

    公开(公告)号:US5633736A

    公开(公告)日:1997-05-27

    申请号:US412404

    申请日:1995-03-28

    CPC分类号: G02B26/106

    摘要: A scanner configured to provide a two-dimensional scan of a radiation beam moving along the path, including two deflectors and a scan lens located downstream in the path of the beam from the deflectors and separated from the farthest deflector by air equivalent distance at least equal to the focal length of the scan lens.

    摘要翻译: 一种扫描器,被配置为提供沿着路径移动的辐射束的二维扫描,包括两个偏转器和位于光束从偏转器的路径中的下游的扫描透镜,并且与最远的偏转器分离,空气等效距离至少相等 到扫描透镜的焦距。

    Multifocal contact lenses
    10.
    发明授权
    Multifocal contact lenses 有权
    多焦点隐形眼镜

    公开(公告)号:US07322695B2

    公开(公告)日:2008-01-29

    申请号:US11389798

    申请日:2006-03-27

    IPC分类号: G02C7/04

    CPC分类号: G02C7/044

    摘要: The invention provides methods for correcting presbyopia and lenses for such correction in which production of a full range of multifocal lenses is accomplished using three rotationally symmetric, aspheric back surfaces, the design of which base curves is a function of refractive power.

    摘要翻译: 本发明提供了用于校正老花眼和用于这种校正的透镜的方法,其中使用三个旋转对称的非球面后表面实现全范围的多焦点透镜的生产,其基本曲线的设计是屈光力的函数。