基于DSP的查片仪光学特性信号产生及处理

The Signal Production and Processing for the Optical Property of the Lensmeter Based on DSP

提出了一种新的基于DSP的眼镜镜片测量仪器的设计方法。该方法采用高分辨率线阵CCD获取光路信号,通过数字信号处理系统(DSP)进行信号采集、分析、计算并驱动步进电机进行对焦,从而得出镜片的各项光学参数。

A novel method of measuring eyeglass＇s focus is proposed , which is based on DSP. The method applies high- resolution linear CCD to get image signal, its signal sampling, signal processing, calculation and controlling stepping motor to focalize are carried out by a Digital System Processing （DSP） system. Thereby we get optical parameters of the eyeglass.