Learn How to Properly Operate an Educational Microscope
Teaching microscope is suitable for school teaching above junior high school, hospital teaching, family education, personal professional interests, etc. It is commonly used in the three major medical routine examinations, the necessary basis for laboratory research of pathology, bacteria, and histology; it is also used in industrial production Detection of small objects on the surface, such as particles, optical fiber connectors, contours, etc. There are also external cameras, built-in cameras, and other specifications that can also capture images through electronic eyepieces.
Before observation, put the specimen on the loading object, then install the low-magnification objective lens on the objective lens converter in a clockwise direction, and then insert the eyepiece into the lens barrel. If it is a natural light source for illumination, the reflector should be directed to the bright place , so that light can be introduced, but direct sunlight should be avoided, which will affect observation. When it is necessary to observe the specimen, first use the low magnification objective lens and rotate the reflector to obtain a bright field of view (usually when using low magnification for microscopy, use a flat reflector, high magnification and oil lens should use a concave reflector), and then Turn the fine adjustment handwheel to the middle position.
If it is a direct-viewing type, turn the coarse adjustment handwheel to make the distance between the objective lens and the specimen close, and then adjust the thick knob handwheel counterclockwise to gradually distance the objective lens. When the shadow of the object is basically observed, in order to observe more Clear microscopic objects, you can adjust the fine adjustment handwheel until it is clear. The strabismus type usually depends on adjusting the height of the mirror stage to focus. To make the observed object appear the same as the direct-view type, if the light source system is too strong or too weak, and the mirror adjustment has reached the limit, frosted glass or colored light can be added, and the light can also be changed. The size of the aperture (also known as the red color circle, iris circle) can also raise or lower the condenser lens to obtain a soft and clear light source. The low magnification objective lens needs to be replaced with a high magnification lens for observation, then directly dial the high magnification lens into the observation position, and slightly adjust the handwheel to display a clear object image. If you use an infiltration oil lens, drop cedar oil or paraffin oil on the specimen, and adjust it according to the straight and oblique adjustment methods. If an artificial light source is used, just point the reflector at the bright spot.
