LENS SYSTEM
    1.
    发明申请
    LENS SYSTEM 失效
    镜头系统

    公开(公告)号:US20090059395A1

    公开(公告)日:2009-03-05

    申请号:US11946325

    申请日:2007-11-28

    IPC分类号: G02B9/62

    CPC分类号: G02B9/62 G02B13/005 G02B13/22

    摘要: A lens system comprises a first lens negative in power, a second lens positive in power, a third lens negative in power, a fourth lens positive in power, a fifth lens negative in power, and a sixth lens positive in power. The lens system meets a criteria of TT/f≦1.68 and 0.3

    摘要翻译: 透镜系统包括:功率为负的第一透镜,功率正的第二透镜,功率为负的第三透镜,功率为正的第四透镜,功率为负的第五透镜,以及功率为正的第六透镜。 透镜系统满足TT / f <= 1.68和0.3