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blower and place it on a clean, lint-free cloth.
7.
Use a bamboo stick to remove the rubber “O” ring from the light rod.
8.
Apply a small amount of polishing paste on a lint-free cloth, polish the
polished rod, especially in the groove where the light is placed, and carefully
polish it with a thin bamboo stick against the lint-free cloth; carefully cut the
three small holes in the groove with a fine cotton swab. polishing.
9.
Clean the polished light rod with warm water with detergent, then rinse it in
warm water (preferably hot water); check the light rod under the light,
especially the light Whether the rod is polished or not, there are still black
spots, stains and residual polishing paste; if there is residue, it needs to be
re-polished or brushed until it is completely clean.
。
Figure 5-2 Remove Diaphram from Bar
10.
Dehydrate the optical mast with absolute ethanol and blow dry with a hot
air blower.
11.
Install the rubber “O” ring that you just removed on the sealing groove of
the light rod.
12.
Place the three objective lenses on the molybdenum boat of the vacuum
coater, pump to a high vacuum, and heat the diaphragm to orange for half
an minute
。
Note: The temperature should not be too high to avoid burning out
the diaphragm; if there is a platinum pot, you can also put the diaphragm
into the platinum pot or the white gold boat (or use the tweezers to clamp
the edge of the diaphragm, as shown in Figure 5 3 ), the front side of the
pupil (glossy side) is heated upwards with an alcohol lamp to a slight
