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前言光学传递函数无论在自动光学设计中,还是在评价光学系统成象质量方面,都正在被越来越多的人们所关注、认识和理解。光学传递函数测量装置,也逐步得到推广与应用,因此,出现了不同的测量手段,如直接对狭缝目标的象进行正弦扫描,或者测量线扩散函数值,再根据测量数据,用计算机计算出位相传递函数和调制传递函数;也出现了多种类型的光学传递函数测量装置,如日本的C-4型OTF测试仪,英国的EROS系列产品等。本文简单介绍一下光学传递函数的概念和应用。一、光学传递函数的概念
Introduction Optical transfer function is being paid more and more attention, understanding and understanding both in automatic optical design and in evaluating the imaging quality of optical systems. Optical transfer function measurement device, also gradually be popularized and applied, therefore, there have been different measurement methods, such as a direct scan of the slit image of the target sinusoidal, or measurement line diffusion function value, and then based on measured data, calculated using a computer Phase transfer function and modulation transfer function; there are also many types of optical transfer function measurement devices, such as Japan’s C-4 OTF tester, the United Kingdom EROS products. This article briefly introduces the concept and application of optical transfer function. First, the concept of optical transfer function