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近年来,科研工作中已广泛应用幻灯机和投影仪作为学术交流的工具。对投影仪幻灯片的制作方法,大体上有拍摄法、印刷法和手工直绘法三种。拍摄法比较适合制作35mm 的幻灯片,但对制作尺寸较大的适合投影仪使用的幻灯片就不太方便。而印刷法和手工直绘法制作过程比较费时。为此,化学系的研究人员在日本 Canon Np125型静电复印机上进行了多次试验,解决了聚酯薄膜胶片输入后卡机、图象清晰度差等关键技术问题,摸索出适合于在聚酯薄膜上进行静电复印的最佳条件。
In recent years, slide projectors and projectors have been widely used as tools for academic exchanges in scientific research. The production of the projector slide, there are generally shooting method, printing method and hand-painted direct three. Shooting is more suitable for the production of 35mm slides, but for the production of larger suitable for the projector slide is not very convenient. The printing method and hand-painted method of making more time-consuming. To this end, the Department of Chemistry researchers in Japan Canon Np125-type electrostatic copier carried out several tests to solve the polyester film input card machine, poor image clarity and other key technical issues, to find out for the polyester Film on the best conditions for xerography.