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    • 6. 发明授权
    • Optical deflection element
    • 光学偏转元件
    • US06385355B1
    • 2002-05-07
    • US09517628
    • 2000-03-03
    • Keiichi NashimotoShigetoshi NakamuraTakashi MorikawaHiroaki MoriyamaMasao WatanabeEisuke Osakabe
    • Keiichi NashimotoShigetoshi NakamuraTakashi MorikawaHiroaki MoriyamaMasao WatanabeEisuke Osakabe
    • G02B1295
    • G02F1/295
    • The present invention uses a single substrate to provide a small-size optical waveguide element that requires no optical axis adjustments, can be driven at a low voltage, is excellent in light utilization efficiency, and can rapidly two-dimensionally deflect a light beam. A right-triangle upper electrode and a rectangular transparent upper electrode are formed on top of a thin-film optical waveguide formed on a conductive substrate to serve as a lower electrode, and an emission right-angled prism is secured on top of the transparent upper electrode. A voltage is applied between the upper electrode and the conductive substrate, and between the transparent upper electrode and the conductive substrate. A horizontal deflection is performed upon application of a voltage to the upper electrode and a vertical deflection is performed upon application of a voltage to the transparent upper electrode.
    • 本发明使用单个基板来提供不需要光轴调整的小尺寸光波导元件,可以在低电压下驱动,光利用效率优异,并且能够快速地使光束偏转二维。 在形成在导电性基板上的薄膜光波导的顶部形成直角三角形上部电极和矩形透明上部电极,作为下部电极,发光直角棱镜固定在透明的上部 电极。 在上部电极和导电性基板之间以及透明上部电极与导电性基板之间施加电压。 在向上电极施加电压时执行水平偏转,并且在向透明上电极施加电压时执行垂直偏转。