谈谈光学检测的指导思想

The Guiding Idea in Optical Inspection

指导思想是指人们在做一件事之前,考虑要采取什么样的技术路线,使用怎样的工具和方法等等。人类经过长期的经验积累和理论研究,发展出许许多多测量方法和测试仪器、测量工具。计算机的出现和普及,使光学测试领域也发生了革命性的变化。集光-机-电-算于一体的新的测试仪器和经典的仪器设备之间的取舍,往往是决策者不能回避的选择。世界上的事情是复杂的,有的事情,从这个角度看应该这样,而从另一个角度看也许应该那样。但是,不管用什么手段,又经济又能解决实际问题就是好手段。以制造一个 4m 镜面为例,谈谈个人的测试思路。

The guiding idea means that one must consider which kind of technical line and what kind of instrument and method will be used before one doing any optical inspection. The computer makes the optical inspection method a great progress. But some traditional methods still play important roles in their domain. As an example, how to make a 4- meter F/1.5 parabola is illustrated in detail.