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    • 55. 发明申请
    • OPTICAL ELEMENT
    • 光学元件
    • US20070139333A1
    • 2007-06-21
    • US11678794
    • 2007-02-26
    • Susumu SatoMao Ye
    • Susumu SatoMao Ye
    • G09G3/36
    • G02F1/29G02F1/134309G02F2001/294G02F2201/12
    • The focal distance can be greatly changed by performing an electrical control in an optical element. The optical element comprises a first substrate having a first electrode, a second substrate, a second electrode arranged outside the second substrate, and a liquid crystal layer provided between the first substrate and the second substrate and constituted by liquid crystal molecules oriented. A first voltage is applied between the first electrode and the second electrode, thereby controlling the orientation of the liquid crystal molecules, whereby the optical element operates. A third electrode is provided on an insulating layer and outside the second electrode. A second voltage independent of the first voltage is applied to the third electrode, thereby changing the optical properties.
    • 通过在光学元件中进行电气控制可以大大地改变焦距。 光学元件包括具有第一电极,第二基板,布置在第二基板外侧的第二电极的第一基板和设置在第一基板和第二基板之间并由液晶分子取向构成的液晶层。 在第一电极和第二电极之间施加第一电压,从而控制液晶分子的取向,从而使光学元件工作。 第三电极设置在绝缘层上并在第二电极的外侧。 与第一电压无关的第二电压被施加到第三电极,从而改变光学性质。
    • 59. 发明申请
    • Zoom lens system
    • 变焦镜头系统
    • US20060066954A1
    • 2006-03-30
    • US11237668
    • 2005-09-29
    • Susumu Sato
    • Susumu Sato
    • G02B15/14
    • G02B27/646G02B15/173
    • Providing a zoom lens system having a high zoom ratio, a small diameter of the first lens group, capable of being effectively retracted upon retracting the lens barrel. The system includes, in order from an object, a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group having positive refractive power, and a fifth lens group having positive refractive power. When zooming from a wide-angle end state to a telephoto end state, the first, second, third, and fourth lens groups move along an optical axis and the second lens group moves along a zoom trajectory being concave to the object. The fourth lens group is composed of a front lens group having positive power and a rear lens group having negative power with a space in between. Given conditional expressions are satisfied.
    • 提供具有高变焦比的变焦透镜系统,第一透镜组的小直径,能够在缩回透镜镜筒时有效地缩回。 该系统按照从物体起依次包括具有正折光力的第一透镜组,具有负折光力的第二透镜组,具有正屈光力的第三透镜组,具有正屈光力的第四透镜组,以及第五透镜 具有正屈光力的组。 当从广角端状态变焦到远摄端状态时,第一,第二,第三和第四透镜组沿着光轴移动,并且第二透镜组沿着凹入的物体的变焦轨迹移动。 第四透镜组由具有正光焦度的前透镜组和具有负功率的后透镜组组成,其间具有空间。 给定条件表达式是满意的。