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近来我们摸索出了适合我国条件的一种类似一次成相方法一类一次成相法,它是根据底片图相通过印相机或放大机直接给感光纸曝光原理用感光纸直接拍扫描图相,其程序实际与一次成相相同,类一次成相拍摄方法将感光纸裁成稍大于扫描电镜120相机机身暗盒内框(对看镜头的)尺寸大小,使相纸带有感光药膜的一面覆盖在内框上,盖好相机后盖,然后通过电镜反差、亮度、聚焦和相散等的正确调正,在观察屏七得到细微清晰的正相,再将电镜“极性转换开关”,也称之谓“暗电平调节”打开,样品在观察屏上则呈现负相,由于聚焦已调正,此时调正亮度至图相细节全部显示出来,这时若图相亮区太亮,按下“伽玛”
Recently, we worked out a suitable for our conditions similar to a phase approach to a phase method, which is based on negative photos through the camera or the camera directly to the photosensitive paper exposure principle photosensitive paper scanning directly take photos, The program actually become the same phase with a class into a phase approach to the photosensitive paper cut into a slightly larger than the scanning electron microscope 120 camera body cartridge inside the box (to see the camera) the size of the photo paper with photosensitive film side Cover the inner frame, cover the camera back cover, and then through the electron microscope contrast, brightness, focus and phase correct correction, etc., in the observation screen seven get a clear and clear positive phase, then the electron microscope “polarity switch” Also called the “dark level adjustment” is turned on, the sample is negative in the observation screen, the focus has been adjusted at this time to adjust the brightness to the phase of the picture shows all the details, then if the picture bright area too bright, Press “Gamma”