The optical structure of focus and level system was introduced, and a mathematical model for single-point measurements of height and focusing and leveling was set up.
介绍了调焦调平系统的光学结构，并建立起了理想的单点高度测量与整场调焦调平的算法模型。
A sphere large-power short arc xenon lamp is used as the light source of this equipment. Deep ellipsoidal optical focusing system, cooling system and power source are designed reasonably.
该设备以大功率球形短弧气体放电氙灯为光源，设计了合理的光学聚焦系统、冷却系统及供电系统。
The paper analyzes the principle of components of magneto optical disk driver focusing and tracking servo system, then designs and realizes a DSP based digital servo control system.
分析了磁光盘驱动器聚焦与循轨数字伺服系统各组成部分的原理，并设计和实现了一套基于DSP的数字伺服控制系统。
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