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目前DVD播放机光头的种类挺多,我看可以分为单激光器方式和双激光器方式两种,而这两种的每一种又可细分为几种,下面给大家介绍一下: 1.单激光器方式 只有一个激光发射器,只能发射650nm的激光,故无法兼容CD-R。 具体又有以下几种方式: A.双透镜方式: 采用两个焦距不同的透镜,分别用于DVD和CD
At present, the type of DVD player bald quite Ting, I think it can be divided into single-laser and dual laser two ways, and each of these two can be subdivided into several, the following to introduce: 1. Single The laser mode is only a laser transmitter, can only emit 650nm laser, it can not be compatible with CD-R. There are several specific ways: A. Two-lens approach: the use of two different focal lengths of the lens, respectively, for DVD and CD