User`s guide

Cleaning Procedures for Lightwave Test and Measurement Equipment Additional Cleaning Information
266 Agilent 81600B Tunable Laser Source Family, Fourth Edition
How to clean large area lenses and mirrors
Some mirrors, such as those from a monochromator, are very soft and
sensitive. Therefore, never touch them and do not use cleaning tools such
as compressed air or polymer film.
Some lenses have special coatings that are sensitive to solvents, grease,
liquid and mechanical abrasion. Take extra care when cleaning lenses with
these coatings.
Lens assemblies consisting of several lenses are not normally sealed.
Therefore, use as little liquid as possible, as it can get between the lenses
and in doing so can change the properties of projection.
Preferred Procedure
Use the following procedure on most occasions.
• Blow away any dust or dirt with compressed air.
Procedure for Stubborn Dirt
Use this procedure when there is greasy dirt on the lens.
Ensure that your liquid soap has no abrasive properties or perfume in it.
You should also avoid normal washing-up liquid, as it can cover your device
in an iridescent film after it has been air-dried.
Some lenses and mirrors also have a special coating, which may be
sensitive to mechanical stress, or to fat and liquids. For this reason we
recommend you do not touch them.
If you are not sure how sensitive your device is to clea-ning, please contact
the manufacturer or your sales distri-butor.
1 Moisten the lens or the mirror with water.
2 Put a little liquid soap on the surface and gently spreadthe liquid over
the whole area.
3 Wash off the emulsion with water, being careful to remove it all, as any
remaining streaks can impair measurement accuracy.
4 Take a new, dry soft tissue and remove the water, by rubbing gently
over the surface using a straight movement.
5 Blow away remaining lint with compressed air.
Only use water if you are sure that there is no other way of cleaning
your optical device without causing corrosion or damage. Do not use
hot water, as this may cause mechanical stress, which can damage
your optical device.
CAUTION