公开(公告)号：US06411420B1

公开(公告)日：2002-06-25

申请号：US09424443

申请日：2000-03-14

申请人： Masahiro Yamada ,  Toru Domuki ,  Hitoshi Tamada

发明人： Masahiro Yamada ,  Toru Domuki ,  Hitoshi Tamada

IPC分类号： G02F103

CPC分类号： G02F1/03 ,  G02F1/3558

摘要： Polarization inversion domains 2 are irregularly formed in a ferroelectric substrate 3 constituting an electro-optical element 1 at least in the propagation direction of a light beam A. An A.C. current signal is applied between electrodes 4 and 5. It is thereby arranged to disturb the phase of each of the light rays constituting a light beam whose coherent characteristic is high, such as a laser light or the like, and thereby to easily obtain the light beam whose coherent characteristic has been decreased.

摘要翻译： 极化反转畴2至少在光束A的传播方向上构成电光元件1的铁电衬底3中不规则地形成。在电极4和5之间施加AC电流信号。由此， 构成相干特性高的光束（例如激光等）的每个光线的相位，从而容易地获得其相干特性已经降低的光束。