For an optical component in a metallographic microscope, some mechanical components, such as eyepieces, objective lenses, photographic installations, etc., must be stored separately for storage requirements, and they need to be installed and disassembled when using the microscope.

Installation steps of metallographic microscope eyepiece and objective lens:

1. The device of the metallographic microscope eyepiece

The device of the eyepiece is relatively simple: first remove the plastic dustproof cover on the eyepiece, and then insert the selected eyepiece from the upper end of the eyepiece tube. If you want to change the eyepiece with different magnification, you only need to pull out the originally installed eyepiece from the lens barrel, and then put the eyepiece to be used into the eyepiece barrel, but you should pay attention to whether the eyepiece is in contact with the supporting surface of the eyepiece barrel. Completely coincident.

2. The device of the metallographic microscope objective lens

The objective lens of the metallographic microscope is installed on the nosepiece. When installing the objective lens, turn the rough entry handwheel by hand to raise the stage, and at the same time keep a large enough interval between the stage and the nosepiece, and then press the three objective lenses with different magnifications to the low and medium magnifications. , screw into the screw hole of the objective lens of the converter respectively in order of high magnification, and must not be installed in random order.

Before the thread is tightened, do not let it go, to prevent the objective lens from falling off and damage, but it should not be too tight, and the tightness should be moderate. After installation, turn the converter and turn the objective lens to the working position. At this time, you should hear the slight “click” sound of the spring tip on the converter being matched with the wedge-shaped groove.

It is worth noting that when rotating the converter with the objective lens attached, use your fingers to hold the edge of the converter and rotate, do not push the converter with the objective lens by hand, because this operation will easily cause the optical axis to tilt and damage the thread of the objective lens. Affects the coaxiality of the mechanical system and the optical system.