【摘要】 本文主要介绍激光照排机的光学系统。光学系统包括一支氦氖激光器,四个电光调制器与四支光学纤维。四支光学纤维的输出端精密横排。由一个格兰-付科稜镜与几个反射膜片将激光束分解成四束偏振的光束。四个电光调制器是用作四个光开关,光开关是由开关电路控制的。这套光学系统体积很小,通过主副扫描系统可以在底片上照排文字与画面。更多还原

【Abstract】 The optical system of the laser phototypesetter is described in this article. It includes a He-Ne laser, four electro-optical modulators and four optical fibers. In the output end these four optical fibers are connected with each other in a transverse line. The laser beam is split into four polarized light beams by Glan-Foucault prism and several mirrors. These four electrooptical Modulators are used as four light beam switches controlled by four electrical switching devices. This optical system and scanning system can phototypeset Chinese characters and pictures on the film. The size of the whole optical system is so small that it can be contained in a drawer of the typesetter.更多还原