手机玻璃面板摄像孔检测系统的氦氖激光器驱动电路设计  

Design of He-Ne Laser Driving Circuit for the Camera Hole Detecting System of Mobile Phone’s Glass Panel

作　　者：王莹[1] WANG Ying(Changchun Vocational Institute of Technology,Changchun 130033,Jilin)

机构地区：[1]长春职业技术学院,吉林长春130033

出　　处：《电脑与电信》2020年第10期43-45,共3页Computer & Telecommunication

基　　金：长春职业技术学院应用技术研究与开发项目——手机玻璃面板摄像孔检测技术研究,项目编号:YY-2019C03。

摘　　要：针对手机玻璃面板摄像孔检测系统的研究,介绍了一种氦氖激光器驱动电路的设计方法。选用氦氖激光作为检测光源,投射到玻璃面板的摄像孔后产生干涉,通过判断干涉条纹的质量来达到检测目的。提出氦氖激光作为本系统光源的重要性,同时结合实际分析氦氖激光产生干涉条纹不稳定的原因,接下来提出氦氖激光驱动器温度控制的解决办法,最后给出氦氖激光驱动电路原理及设计方法。实验结果表明,该驱动电路模块能稳定控制氦氖激光器光源的稳定性,满足系统要求。Aiming at the research on the detection system of the camera hole of mobile phone’s glass panel,this paper introduces a design method of the helium-neon(He-Ne)laser driving circuit.The He-Ne laser is selected as the detecting light source,and interference is generated after the laser being projected to the camera hole of the glass panel.According to the quality of the interference fringes,the detection purpose can be achieved.The importance of He-Ne laser as the light source of this system is proposed.And combining with the actual application,the reasons for the instability of interference fringes produced by He-Ne laser are analyzed.Next,a technical method for the temperature control of the He-Ne laser driving circuit is proposed.Finally,the principle and design method of the He-Ne laser driving circuit are given.Experimental result shows that the driving circuit module can stably control the He-Ne laser light source,and the light source can fully satisfy the system’s requirements.

关 键 词：摄像孔检测 氦氖激光 驱动电路 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构] TN248[自动化与计算机技术—计算机科学与技术]