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一、序在此之前已介绍过点像扫描式“批量生产用测定仪”的试制概况。其后,市售的个人用计算机的性能大幅度扩展,且使用方便,随机配套的机器可廉价买到。更进一步,由于集成电路图形印相技术的发展,以高对比度,高间距精度在同一块玻璃上印制多种空间频率的光栅也成为可能,从而易于实现装置的自动化,增宽测量空间频率. 该测定仪与以前的测定仪相比,在测量原理上无差别,而操作性能更趋优良、体积小型化。以下将测量原理、新研制的“简易型MTF自动测定机”的测量例、测量精度、评介法等一一介绍。二、点象扫描原理图1中,p(x)为直径2d的针孔,均匀地用非相干光照明,经被测透镜成象为p′(x)。
First, the order has been introduced before point like scanning “mass production tester” trial profiles. Since then, the performance of commercially available personal computers has expanded dramatically and is easy to use, and machines that are bundled at random can be purchased cheaply. Further, due to the development of integrated circuit graphics printing technology, it is also possible to print a wide variety of spatial frequency gratings on the same glass with high contrast and high-pitch accuracy, thereby facilitating the automation of the device and widening the frequency of the measurement space. The analyzer compared with the previous analyzer, the measurement principle is no difference, and the operating performance is more excellent, small size. The following measurement principle, the newly developed “simple MTF automatic measuring machine” measurement examples, measurement accuracy, evaluation methods introduced one by one. Second, point-like scanning principle In Figure 1, p (x) for the diameter of the pinhole 2d, evenly illuminated with incoherent light, the measured lens imaging as p ’(x).