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激光头组件又叫激光检拾头(或拾信头),俗称激光头。激光头由半导体激光器(激光二极管)和光学系统组成,主要作用是发射光束,读取激光影碟或激光唱片(俗称CD碟)上记录的信号及取得各种伺服的误差信号。一、结构及其工作过程激光头的结构如图1所示。它是由激光二极管、光图1CD、LD
Laser head assembly also known as laser pickup (or pick up head), commonly known as laser head. Laser head by the semiconductor laser (laser diode) and the optical system, the main role is to launch a beam of light, laser or laser disc reading CD (commonly known as CD) recorded on the signal and to obtain a variety of servo error signal. First, the structure and working process The laser head structure shown in Figure 1. It is made of laser diode, light figure 1CD, LD