Steps for using a microscope for placement
Mirror retrieval and placement
1. Hold the mirror arm with your right hand and hold the mirror base with your left hand.
2. Place the microscope on the experimental table, slightly to the left (the microscope is placed about 7 centimeters away from the edge of the experimental table
Department). Install the eyepiece and objective lens.
Aiming light
3. Rotate the converter to align the low-power objective with the through-hole (maintain a distance of 2 centimeters between the front end of the objective and the stage).
4. Align a larger aperture with the through-hole. Focus your left eye on the eyepiece (open your right eye for simultaneous drawing in the future). Rotate the reflector to reflect light through the aperture into the mirror tube. Through the eyepiece, a bright white field of view can be seen.
observation
5. Place the specimen of the glass slide to be observed (which can also be made of thin paper with the word "6" printed on it) on the stage and press it with a pressure clamp, with the specimen facing the center of the light hole.
6. Rotate the coarse focusing screw to slowly lower the lens barrel until the objective lens approaches the slide specimen (with eyes looking at the objective lens,
To avoid the objective lens touching the slide specimen.
7. With the left eye looking inside the eyepiece, rotate the coarse focusing screw in the opposite direction to slowly raise the lens barrel until the object image is clearly visible
Stop. Rotate the fine focus spiral slightly again to make the visible image clearer.
8. Use of high-power objective: Before using a high-power objective, it is necessary to first use a low-power objective to find the observed object and adjust it to
In the center of the field of view, then rotate the converter and replace it with a high-power lens. After switching to a high-power mirror, the brightness in the field of view decreases, so it is generally
Select a larger aperture and use the concave side of the reflector, and then adjust the fine focusing spiral. The number of objects viewed decreases, but
The volume becomes larger.
arrange
9. After the experiment, wipe the surface of the microscope clean. Rotate the converter, tilt the two objective lenses to both sides, and adjust the mirrors
The tube slowly descends to the lowest point, and the reflector is placed vertically. Finally, put the microscope into the mirror box and send it back to its original location.
Precautions:
1. Strictly avoid single handed extraction microscopes.
2. If it is necessary to move the microscope, be sure to lift it up and place it in the appropriate position. It is strictly prohibited to push the microscope (during pushing)
Vibration may cause looseness of internal parts of the microscope, remember, Please handle the microscope with care.
3. When using a microscope, the height of the chair should be appropriate, and it is more customary to observe with both eyes at the same time, with a bright aperture and light source
The temperature should be appropriate, otherwise it is easy to feel tired when observed for a long time.
4. When rotating the rotating disc, be sure to lower the loading platform to the lowest point to avoid scratching the lens of the eyepiece due to improper operation.
5. Specimen staining or any other operation should remove the slide, and after the operation is completed, it should be placed back on the stage for observation. Do not use the slide
Operate on the stage to prevent stains or other liquids from entering the interior of the microscope or damaging the lens.
6. After observing one material, if you want to replace another material, be sure to lower the stage to the lowest point and replace the glass slide
Re focus according to standard procedures, do not directly replace the specimen to avoid scratching the lens or slide specimen.
7. After using the microscope, the stage should be lowered to the lowest point, and the low-power mirror should be aligned with the central circular hole of the stage. The power cord should be rolled up, covered with a dust cover, and stored in the storage cabinet
