研究了一种检测激光光斑照度分布的新方法.该方法应用图形化编程语言LabVIEW驱动USB摄像头采集激光光斑图像，经计算机处理后可获得其光斑灰度三维分布图及光斑照度三维分布图，并可实时查看各像素点准确的照度值.系统设计软件各项参数可灵活设置.该方法可以动态地采集光斑信息并进行处理,具有实时性.

A new method of measuring the illumination distribution of the laser spot was studied. The method adopts the LabVIEW to drive the USB camera to collect the image of the laser spot, gets the 3D gray distribution and the illumination distribution of the laser spot after having processed the image with the computer, and can observe timely the exact illumination value of every pixel. The parameters of system design software could be set flexibly. With this method the data information of the laser spot could be collected dynamically and be processed real-timely. This method had been used for experiments teaching.