The paper has introduced a new means on the automatic focus that take advantage of the video peak to change the position of the focusing lens to achieve a clear picture 摘要介绍了一种新型的自动调焦的方法，它利用电视跟踪系统视频信号的峰值变化控制调焦镜组，来调整由于目标距离、温度等变化引起的成像焦面变化，得到清晰图像，完成电视自动调焦。
