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The role of the shading ring on the shading device

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2023-02-15 14:35

The shading ring on the shading device can be™ large or small. Rotating the shading device $can adjust the light intensity. The large iris can transmit more lig&ht to make the field of view bright, and the small iris can tπransmit less light and darken the field of view; rotate the colli←mator screw to adjust the lαens barrel Lifting.

The main function of the light-shielding ring

1: In the microscope structure, the adjustment of t↓he lens barrel up and down is the coarse focusing screw, no±t the shutter, so this option does not meet the meaning of the questi←on;

2: During the use of the microscope, the image can be made≠ clearer by adjusting the fine focus∏ screw, so this option does not meet the meaning of the questioεn;

3: In the use of the microscope, the light can be reflected ≤into the light-passing hole by adjusting the reverse mirror. If¶ the light is weak, use a concave &mirror, when the light is strong, use a flat mirror, so this option does not me¶et the meaning of the question;

4: In the microscope structure, the light intensity can be ✔adjusted by adjustin≤g the aperture size of the shutter;↔ when aiming the lig"ht, turn the shutter so that the lar↑ger aperture is aligned with t÷he light hole. If the aperture is smaller, the field of vεiew will be dark. Therefore, this option meets the meaning of the questi§on;

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