光盘作为大容量记录的输入输出器件已确立了稳固的地位,有CD、MO、DVD等,其方式和形式也多种多样,本文介绍在使用波长440～690nm、基板厚度0～1.7mm范围内,无论对哪种方式光盘都适用的新型光盘动态评价装置,同时将介绍其结构和特性。其特点是①采用称为开缝偏振光分束器 CD-ROM as a large-capacity recording input and output devices have established a solid position, there are CD, MO, DVD, etc., in various ways and forms, this article describes the use of wavelength 440 ~ 690nm, substrate thickness 0 ~ 1.7mm range , No matter what kind of disc is suitable for the new disc dynamic evaluation device, will also introduce its structure and characteristics. It is characterized by ① using a slit polarizing beam splitter