【摘要】 针对多层光盘的特点,对多层光盘的调焦系统采用了斜入射方案,保证了各层信号分离和信号强度的要求,并利用MATLAB仿真,选取合适的器件参数,保证调焦效果,并根据仿真结果搭建了相关光路,可以发现,信号强度完全可以满足采集要求,而且可以达到分层的目的。更多还原

【Abstract】 The focus system of a multi-layer compact disk is designed in order to separate the signal among different layers and obtain the signal from the receiver, and some optical instruments are used to establish the system. The focus adjustment result is simulated by MATLAB and proved by the experiments on focus system that the signal of each layer is received and separated by the receiver.更多还原