Apparatus for deflecting light, device for scanning light, device for reading information and device for steroscopic display
    1.
    发明公开
    Apparatus for deflecting light, device for scanning light, device for reading information and device for steroscopic display 失效
    Vorrichtung zum optischen Abtastung,Vorrichtung zum Lesen von信息

    公开(公告)号:EP0672936A2

    公开(公告)日:1995-09-20

    申请号:EP95301779.5

    申请日:1995-03-17

    申请人: FUJITSU LIMITED

    摘要: An apparatus for deflecting light of the present invention comprises: (a) at least one pair of transference electrodes arranged facing one another; (b) a drive circuit which applies a voltage among the transference electrodes; and (c) a liquid crystal which is inserted among the transference electrodes, and whose parallel stripes that function as a diffraction grating when the voltage is applied among the transference electrodes are produced at a pitch corresponding to the applied voltage. The light can be scanned if a diffracted light by the apparatus for deflecting light is converted into a scanning light and a voltage value is changed temporally to apply the voltage among the transference electrodes. In a device for reading information, the scanning light is reflected in a bar code and the reflected light is detected by an apparatus for detecting light. In a device for stereoscopic display of the present invention, the apparatus for deflecting light is used as beam deflection means for deflecting the light beamed from a picture element which organizes the pictures of the picture display means.

    摘要翻译: 本发明的偏转光装置包括:(a)至少一对彼此相对排列的传送电极; (b)在所述转移电极之间施加电压的驱动电路; 和(c)插入在所述转移电极之间的液晶,并且当以与所施加的电压相对应的间距产生在所述转移电极之间施加电压时用作衍射光栅的平行条纹。 如果通过用于偏转光的装置的衍射光被转换成扫描光并且电压值在时间上改变以在传送电极之间施加电压,则可以扫描光。 在用于读取信息的装置中,扫描光被反映在条形码中,并且反射光由用于检测光的装置检测。 在本发明的立体显示装置中,用于偏转光的装置被用作用于偏转组合图像显示装置的图像的图像的光束的光束偏转装置。