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前言 光源是显微镜的重要组成部分。通常要求光源发光面积小而均匀,亮度高而发热少,以保证优异的成像质量和防止光学零部件的受热损伤。 目前,比较先进的光学显微镜,如西德Leitz厂的MM6型和MM5-PX型等均采用大功率450W的高压氙灯作为光源,这是一个很大的改进。如此,不仅缩短了照相曝光时间,而且对于一些特殊金相方法,如暗场、偏光、相位对比等的应用是必须的。 东德产Neophot-1型及苏产МИМ-3型显微镜,在一般明场观察时采用小功率15W的白炽钨丝灯。暗场,偏光观察照相则用炭棒燃烧照明。由于照明效果对炭棒要求较高,一直依赖进口解决。不少单位的显微镜在炭棒耗尽之
Introduction Light is an important part of the microscope. Usually require light source light area is small and uniform, high brightness and less heat to ensure excellent image quality and prevent the optical components of the heat damage. At present, more advanced optical microscopes such as the MM6 and MM5-PX models of the Leitz plant in West Germany use a high-power 450W high-pressure xenon lamp as the light source, which is a great improvement. This not only shortens the photographic exposure time, but also for some special metallographic methods, such as dark field, polarization, phase contrast and other applications is necessary. East Germany Neophot-1-type production and Soviet-made МИМ-3-type microscope, observation in the general bright field using low-power incandescent tungsten 15W lamp. Dark field, polarized observation camera is burning with charcoal lighting. Due to the lighting effect on the higher requirements of carbon rods, has been dependent on imports to solve. Many units of the microscope in the carbon rod depleted