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91. 发明授权

US4755036A Apparatus for deflecting light beam 失效
标题翻译：用于偏转光束的装置
公开(公告)号：US4755036A
公开(公告)日：1988-07-05
申请号：US825994
申请日：1986-02-04
申请人： Makoto Suzuki , Kazunari Taki
发明人： Makoto Suzuki , Kazunari Taki
IPC分类号： G01R15/24 , G02B6/134 , G02F1/295 , G02B6/10
CPC分类号： G02B6/1342 , G01R15/242 , G02F1/2955
摘要： An optical deflector including a waveguide which has an electrooptic effect and which is adapted to guide rays of light therethrough. The deflector comprises a deflector portion having deflection electrodes disposed on a portion of the waveguide and spaced apart in a selected direction intersecting a direction of propagation of the light. The deflector further comprises a controller for applying deflection voltages to the deflection electrodes to establish a distribution of refractive index of the above-indicated portion of the waveguide in the above selected direction. The controller periodically changes the deflection voltages to vary the refractive index distribution, thereby deflecting the light passing through the waveguide. The waveguide may be formed on a surface of a substrate made of an electrooptic material. The substrate may have a converging portion including convergence electrodes disposed on another portion of the waveguide, to converge the rays of light deflected by the deflector portion, convergence voltages to be applied to the convergence electrodes being varied according to an angle of deflection of the rays, to permit the convergence of the rays on a surface of an object irrespective of the deflection angle.
摘要翻译：一种光学偏转器，包括具有电光效应并且适于引导光线穿过其的波导。偏转器包括偏转器部分，偏转电极设置在波导的一部分上并沿着与光的传播方向相交的选定方向间隔开。偏转器还包括用于向偏转电极施加偏转电压以在上述选定方向上建立波导的上述部分的折射率分布的控制器。控制器周期性地改变偏转电压以改变折射率分布，从而偏转通过波导的光。波导可以形成在由电光材料制成的基板的表面上。基板可以具有会聚部分，其包括设置在波导的另一部分上的会聚电极，用于会聚由偏转器部分偏转的光线，加到会聚电极的会聚电压根据光线的偏转角度而变化以允许射线在物体表面上的会聚，而与偏转角无关。

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