How to use the microscope and what to look out for

Methodological steps. 1. Take the mirror and place it.

1 Hold the arm with your right hand and hold the base with your left hand.

2 Place the microscope on the bench, slightly to the left (the microscope is about 7 cm away from the edge of the bench.

place). Attach the eyepiece and objective.

2. Alignment 3 Rotate the converter to align the low-magnification objective with the clear aperture (the front end of the objective lens and the stage should be kept at 2 centimeters.)

meters).

4 Align a larger aperture at the aperture. The left eye is fixed inside the eyepiece (the right eye is open for later.)

Draw at the same time). Turn the mirror so that the light is reflected into the barrel through the aperture. Through the eyepiece, yes.

See the white vision.

3. Observation 5 Place the slide specimen (which can also be made from a thin piece of paper with the word "6" printed on it) to be observed.

On the stage, press with a tablet clamp and make the specimen directly facing the center of the light hole.

6 Turn the coarse collimation spiral so that the lens barrel is slowly lowered until the objective lens is close to the slide specimen (eye.

Keep your eyes on the objective lens so that it doesn't touch the slide specimen).

7 Look the left eye into the eyepiece, and at the same time turn the coarse quasifocal spiral in the opposite direction so that the lens barrel slowly rises and straightens.

Until you can see the image clearly. Then turn the fine collimation spiral slightly to make the image of the object seen more clearly.

Precautions: After the experiment, wipe the surface of the microscope clean. Turn the converter to offset the two objectives to the sides and place the lenses.

The barrel slowly descends to the lowest point. Finally, put the microscope in the case and return it to its original place.

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When picking and placing the action, the action must be light, and vibration and violence must be avoided, otherwise it will cause the optical axis to deviate and affect the observation, and the optical glass is also easy to be damaged.

Because the screw mouth of the objective lens is easy to be damaged, special care should be taken when installing the objective lens, that is, first reverse a short section to the left, and then rotate to the right after the concave and convex sides are anastomosed, do not rotate too tightly, gently twist to the end, and then tighten slightly.

Microscopic specimens should be carried out in strict accordance with the operating procedures, and the observation should start with a low magnification lens, and then switch to a high magnification lens and oil endoscope after seeing the specimen clearly.

When using an oil lens, be sure to drip oil on the coverslip before using it.

Do not touch the optical glass part with your hands when using, and if you need to wipe it, you should strictly follow the wiping method of optical components.

The coverslips and slides used must not be too thick or too thin. The standard coverslip is millimeter and the glass slide is millimeter. Too thick or too thin will affect microscope imaging and observation.

Plug in the power supply, turn on the switch, and adjust the brightness of the bulb to a comfortable state for observation.

1. Extraction and placement: When extracting, hold the mirror arm with one hand and support the mirror holder with the other. Position: The arm is slightly to the left of the body; The mirror base is approximately 5 cm from the edge of the test bench.

2. Place the slide: Put the slide specimen into the gap at the back of the tablet clamp, and slowly push the slide forward with both hands, so that the specimen is facing the light hole.

3. Adjust the light: choose the maximum aperture to align the light aperture: look at the eyepiece with your left eye, turn the reflector with both hands until you see a bright field of vision, and use the light shade to adjust the intensity of the light.

4. Rotate the converter: Slowly rotate the converter to align the low-magnification objective with the clear hole.

5. Focus observation: Staring at the objective lens with both eyes, rotate the coarse collimation spiral to slowly lower the lens barrel until the objective lens is close to the slide. Looking at the eyepiece with the left eyepiece, rotate the coarse collimation spiral to make the lens barrel rise slowly until the object image is seen, and then fine-tune the fine collimation spiral to make the object image clear.