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Laser Scanner

Focus3D

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German

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FARO® Knowledge Base

Cleaning and Decontamination of the Optics on the Focus3D Laser Scanner

Instructions:

Click here to download a document that contains these instructions in English, German, Spanish, French, Portuguese, Italian, Japanese, and Chinese.

ATTENTION:
To avoid unnecessary damage or wear, only clean the optics when the degree of contamination has an impact on the scan quality (e.g. an increase in range noise or a decrease in scan range) and requires cleaning for proper function. Major contamination and improper handling to clean optics may impact the scanning quality. Self-caused damages can result in a complete replacement of the part at the expense of the customer.

• We recommend using latex gloves. If you are suffering from latex allergies please use gloves that are suitable for you. Lightly rub the gloves after taking them off with laboratory cloths and isopropanol to remove grease and dirt.
• Do not touch the optical surfaces with bare hands or laboratory gloves if at all possible.
• ATTENTION: Before cleaning the mirror optics, cover the lens with a cap and avoid any contact with the lens.
• Only use cleaning fluid WITHOUT alcohol or acetone to clean the optics. We recommend alcohol-free lens cleaner that can be found in most optical supply stores.
• In the event acetone accidentally comes in contact with the mirror or lens, IMMEDIATELY rinse with water (distilled, if possible).
• Turn the scanner off before cleaning the optics.

What's needed:

• Compressed air spray (oil-free - optical supply store)
• Alcohol free cleaning fluid in spray bottle / dropping bottle
• 1 Package lens tissue (optical supply store)
• 1 Package laboratory cloths (lint-free)
• 1 Pair of tweezers or forceps
• 1 Pair of non-powdered gloves Additionally for a greatly contaminated mirror:
• Mild neutral soap (optical supply store)

Slightly Contaminated Mirror

Handling lens tissue: Fold two or three pieces of lens tissue and clamp them in the tweezers or forceps.

User-added image

• First, use a little compressed air spray (oil-free) to clean the surface of the optics.
• Mist the clamped lens tissues with the cleaning fluid (do not soak). If necessary, wait a few seconds until some of the solution has evaporated.

User-added image

• Bring the scanner mirror into position and hold it with one hand; do not touch the mirror surface. Use the other hand to clean the mirror. Starting at the edge of the mirror, apply light pressure and wipe across the mirror into one direction. Repeat until the mirror surface is clean. Use a clean area of the lens tissue (fold used lens tissue accordingly) or new lens tissue for each wipe.
Avoid touching the mirror surface with gloves. Do not touch the mirror surface and the receiver lens with the tweezers or forceps.

User-added image

Greatly Contaminated Mirror

Folding laboratory cloths: Take several individual laboratory cloths out of the package and fold twice. Set onto an oil-free surface.
• Fold the laboratory cloth and soak the edge in the cleaning fluid. Carefully clean the edge of the mirror.
• Completely mist a fresh folded laboratory cloth with mild neutral soap along the edge.
• Starting at the edge of the mirror, apply light pressure and wipe across the mirror. Repeat multiple times in linear direction.
• Then clean with appropriate cleaning fluid. See “Cleaning Instructions for Optics” on page 20.

Cleaning the Receiver Lens

See “Cleaning Instructions for Optics” on page 20. Use only alcohol free cleaning fluids! Do not touch the mirror or the receiver lens with your hands, tweezers or forceps.
• Even small amounts of acetone on the lens may result in dullness of the lens surface or cracks in the lens body.
• ATTENTION: To avoid unnecessary damage or wear, only clean optics when the degree of contamination requires cleaning for proper function.
• Major contamination and improper handling to clean optics may impact the scanning quality. Self-caused damages can result in a complete replacement of the part at the expense of the customer.

Suppliers

Thorlabs, Inc. (http://www.thorlabs.com/)
Edmund Optics (http://www.edmundoptics.com/)
Gloves, lens tissues, laboratory cloths, tweezers, forceps, cleaning fluids
Kugler GmbH (http://www.kugler-precision.com/)
Cleaning set