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Inspect and clean optics
• Unnecessary cleaning of optics can increase the risk of degrading delicate coatings and
Check these components periodically in a clean, dust-free environment using a high-intensity light
source or flashlight. Clean them only when dust, dirt, oil, fingerprints, or other marks are obvious.
Never touch an optical surface with bare hands. Always wear lint-free lab gloves.
The following tools are recommend for removing dust or grease:
•
Powder free latex gloves
•
Soft camel-hair brush
•
Dust-free blower - air bulb or a canned air duster without additives such as Techspray 1671-
10S Ultra-Pure Duster
•
Lint-free lens tissue, such as Lensx 90 tissue or Newport Optics cleaning tissue
•
Lens cleaning solution and a microfiber cloth (for the lens only)
•
Isopropyl Alcohol Reagent Grade (ACS) 99.9%
•
Acetone Reagent Grade (ACS)
•
Optical grade cotton swabs with wooden stems
•
Sticklers Fiber Optic Cleaner (can be used on all optical components)
•
A bright, portable illumination device such as an LED flashlight
Remove dust from the projection lens
1. Brush most of the dust off with a camel-hair brush or use a dust-free blower.
2. Fold a microfiber cloth and wipe the remaining dust particles off the lens with the smooth
portion of the cloth that has no folds or creases. Do not apply finger pressure. Instead, use the
tension in the folded cloth to remove the dust.
3. If significant dust remains on the lens surface, dampen a clean microfiber cloth with lens
cleaning solution and wipe gently until clean.
Remove fingerprints, smudges, or oil from the projection lens
1. Brush most of the dust off with a camelhair brush or use a dust-free blower.
2. Wrap a lens tissue around a swab and soak it in lens cleaning solution.
The tissue should be damp but not dripping.
3. Gently wipe the surface using a figure eight motion.
4. Repeat until the blemish is removed.
CP42LH User Guide
020-101363-03 Rev. 1 (08-2016)
surfaces. If you are not a qualified service technician, you can only inspect and clean the
lens. Any other optical maintenance should be performed only by qualified service
technicians.
Maintenance
69
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