Optical Displacement Feedback on Auto-Focusing DVD Probe System
碩士 === 國立臺灣大學 === 機械工程學研究所 === 93 === In this research, a DVD probe system by means of auto-focusing control principle was developed. In this system, the distance between objective lens and workpiece is not exactly at the focal distance;therefore the focus error signal(FES) from photodiode will actu...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
2005
|
| Online Access: | http://ndltd.ncl.edu.tw/handle/36512621578161054840 |