公开(公告)号：US5786911A

公开(公告)日：1998-07-28

申请号：US555866

申请日：1995-11-13

申请人： Fumihiro Tawa ,  Junji Tomita ,  Shinya Hasegawa

发明人： Fumihiro Tawa ,  Junji Tomita ,  Shinya Hasegawa

IPC分类号： G02B26/10 ,  G02B26/12 ,  G02B27/28 ,  G02B5/32 ,  G02B26/08

CPC分类号： G02B26/123 ,  G02B26/106 ,  G02B27/283

摘要： An optical scanning apparatus is equipped with a light source for outputting a scanning beam having a single fixed direction polarization component. A polarization control element is provided for changing the polarization direction of the scanning beam outputted from the light source. An optical element is provided for splitting the scanning beam outputted from the polarization control element into two linearly polarized beams that orthogonally cross each other. An image formation element is utilized for forming images with the two linearly polarized beams outputted from the optical element at independent locations on a scanning surface. A signal processing device is provided for controlling the light source and the polarization control element, and for switching on and off the two linearly polarized beams.

摘要翻译： 光学扫描装置配备有用于输出具有单个固定方向偏振分量的扫描光束的光源。 偏振控制元件用于改变从光源输出的扫描光束的偏振方向。 提供了一种光学元件，用于将从偏振控制元件输出的扫描光束分成两个彼此正交交叉的线偏振光束。 图像形成元件用于在扫描表面上的独立位置从光学元件输出的两个线性偏振光束形成图像。 提供一种信号处理装置，用于控制光源和偏振控制元件，并用于接通和关断两个线偏振光束。