How should a polarizing microscope be cleaned?

How should a polarizing microscope be cleaned? During the use of the polarized light microscope, some dust, grease and other things will enter.
These impurities will have a serious impact on the imaging of the polarized light microscope.
How to clean the microscope, the following editor will recommend the following methods: 1.
Use Clean air blows off surface dust
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If you can't blow it clean, wrap two pieces of lens tissue around a cotton swab or fold the lens tissue slightly larger than the area to be cleaned
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2.
When wiping the surface of optical parts, use petroleum ether to clean the rough sand surface and frame
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3.
When wiping round parts, the cotton ball should move in a spiral line from the center to the edge.
At the same time, the cotton ball itself should also rotate, and the cotton ball should be removed from the surface of the lens.
Do not stay on the edge of the lens to avoid leaving imprints.
When wiping with the gyrator, the cotton ball should move in a straight line from the center to the edge, and the cotton ball itself rotates at the same time (the rotation of the cotton ball should be slightly less than one week)
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4.
When wiping the prism, the cotton ball can be placed horizontally on the surface to be wiped and wiped in a straight line
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 　　5.
It should be wiped in a relatively clean room and wiped with degreased long-staple cotton.
The cleaning solution contained in the cotton ball should not be too much.
When wiping, it should be wiped in the cross direction of the reticle to avoid rubbing the inside of the reticle.
the filler layer is wiped off
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 　　6.
When wiping the glued optical parts, the cotton ball should not be dipped in the mixture too much, so as to prevent the solvent from invading the glued layer and causing degumming
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 　　7.
For the reflective parts with aluminized and protective film, if the protective film is relatively firm, you can use a cotton ball dipped in a little mixture or a carefully degreased emery cloth to wipe
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 　　8.
The cotton ball should be rolled well, and the bamboo stick head of the rolled cotton ball should not be exposed, so as not to scratch the parts
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The size and shape of the cotton balls should vary with the size and type of the parts.
Generally, cylindrical cotton balls are used for round parts, flat cotton balls are used for flat parts, and soft cotton balls are used for coated surfaces (especially reflective magnesium).
In other cases, the cotton ball should be rolled tightly
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 　　9.
When the cotton ball dipped in the mixture invades the solvent, please do not exceed one-third of the length of the cotton ball
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 　　The above is the relevant introduction about the cleaning method of polarized light microscope.
I believe that everyone has a corresponding understanding of this after reading, and everyone can use it as a reference.
I hope it will be helpful to you
.