激光出现以来,在其各种丰富多彩的可能应用中,作为图像的输入和输出装置的激光器却报导得很少,而且只是在最近才对报纸传真和印刷制版等方面确定了其技术上的评价,并希望在不久的将来用于磁盘录相机等,这对于广泛普及一般家庭用和工作用的装置来说希望就更大了.因此激光输入和读出装置在常常遇到困难的激光器实用化中,是比较接近于现状并能广泛普及的,从这点看它是目前一个具有代表性的激光应用领域. Since the advent of lasers, the lasers used as input and output devices for images have reported very little in their various and varied possible applications, and their technical evaluation has only recently been confirmed in newspaper facsimiles, printing plates, etc. And hopefully, it is expected to be more widely used for disk recorders and the like in the near future for widespread use in general household and office use devices. Therefore, laser input and output devices have been put to practical use in lasers, which often encounter difficulties , Is relatively close to the status quo and can be widely popular, from this point of view it is a representative of the current laser applications.