Cleaning The Front Window Lens; Cleaning Heavy Contamination; Brush Cleaning Method - Zeiss CLARUS 500 Instructions For Use Manual

Instructions for Use
CLARUS® 500
Action
2660021171806 Rev. A 2019-01
Figure 22: Residual Bright Spots after Cleaning

8.4 Cleaning the Front Window Lens

8.4.1 Cleaning Heavy Contamination

Fingerprints, oil, or water spots should be cleaned immediately.
Skin acids attack coatings and glass, and can leave permanent
stains. Cleaning with solvents alone tends to redistribute grime.
These contaminants must be lifted from an optical surface with
soap or other wetting agent. The optic is then rinsed in water and
the water removed with alcohol. Acetone helps speed drying and
helps eliminate streaks from forming.
1. Blow off dust.
2. Using a soap-saturated lens tissue placed around a swab, wipe
the optic gently in a figure-eight motion.
3. Repeat as necessary.
4. Repeat this procedure with distilled water.
5. Repeat again with alcohol.
6. Repeat once more with acetone.

8.4.2 Brush Cleaning Method

This technique is ideal for cleaning smaller optics, including lenses,
and involves holding a folded lens tissue with a hemostat to brush
the surface clean.
8 Cleaning and Disinfection
8.4 Cleaning the Front Window Lens
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