What are the uses and precautions for high-power microscopes?

How to use a high-power microscope:

Taking and placing the mirror: Hold the mirror arm with your right hand and hold the mirror base with your left hand. Place the microscope about 7 cm from the edge of the experimental table, slightly to the left. Install the eyepiece and objective lens.

Align the light: Rotate the converter to align the low-magnification objective lens with the clear aperture (the distance between the front end of the objective lens and the stage should be 5 to 10 mm). Aim a larger aperture at the light aperture. Look at the eyepiece with one eye and open the other eye. Turn the reflector so that the light is reflected into the lens barrel through the light aperture. A bright white circle can be seen through the eyepiece. view.

Observation: Place the slide specimen to be observed on the stage and press it with a pressing clamp. The specimen should be facing the center of the light hole. Turn the coarse focus screw to slowly lower the lens barrel until the objective lens is close to the slide specimen. Look into the eyepiece with one eye, and at the same time, turn the coarse focus screw counterclockwise to slowly raise the lens barrel until you can see the object clearly. Then turn the fine focus screw slightly to make the object image clearer.

Note on high-power microscopes: First observe with a low-power lens, find the object image to be magnified and observe, move it to the center of the field of view, and then replace it with a high-power objective lens. After replacing the high-magnification objective lens, you can no longer turn the coarse focus screw, but can only adjust it with the fine focus screw.

Extended information

Use of high-power microscope: This instrument can be used to identify and analyze the organizational structure of various metals, alloy materials, and non-metallic substances. It is widely used in electronics, chemical industry, and instrumentation. Industry observes opaque substances. Such as metal materials, solar panels, integrated circuits, electronic chips, circuit boards, large LCD panels and other non-metallic materials, research and analysis of some surface conditions, etc.

Performance features of high-power microscope: Equipped with large field of view eyepieces and long-distance plan achromatic objective lens, the field of view is large and clear. Equipped with a stage with a large moving range, it can move quickly and slowly. Coarse and micro-movement coaxial focusing mechanism, adjustable coarse-movement tightness, with limit locking device, micro-movement grid value: 2μm. 6V 20W halogen lamp, adjustable brightness. The trinocular tube can be freely switched for normal observation and can carry out 100% light-transmitting photography with a unique anti-mildew system.

Reference material Baidu Encyclopedia--High-power microscope