我厂 PMF 型日本制立式金相显微镜从1971年启用,多年来的生产实践表明,该显微镜的显微摄影单元存在着两个方面的问题:第一,拍摄的金相照片太小,画面只有1时左右,即普通电影胶卷的画面尺寸。由于画面太小,所显示的金相组织视域也就比较小,不利于拍摄较大视域的照片;第二,PMF 型的显微照相机原设计是采用整卷的135胶卷,需整卷拍完后才可更换,而在实际使用中往往是每次拍的张数都不很多,需要经常拍照,经常换片。因此,原有的装置不适应工厂实验室要求。虽然该装置在大量拍照时有连续拍摄而不需换片 Our factory PMF-type vertical microscope made in Japan since 1971 to enable the production of many years of practice shows that the microscopic microscope unit there are two problems: First, the metallographic photographs taken too small, the screen Only about 1 o’clock, that is, ordinary movie film screen size. As the picture is too small, the metallographic structure shown is also relatively small, which is not conducive to taking pictures of larger field of view. Second, PMF-based micro-camera originally designed 135-roll full-roll After the shoot can be replaced, but in actual use is often not the number of shots per shot, need to take pictures often, often for film. Therefore, the original device does not meet the factory laboratory requirements. Although the device in a large number of photographs continuous shooting without changing the film