Cleaning The Front Lens Of Immersion Objectives; Care - Leica TCS SP8 STED 3X User Manual

Care and Cleaning
dissolve the glue which holds the objective lens in place.
• Remove dust with a fine, dry brush made from hair or with a clean, lint-free cloth
moistened with distilled water.
• Remove persistent dirt from glass surfaces using suitable solvents.
• Prevent the optics and mechanical parts from coming into direct contact with acids,
bases and other aggressive chemicals.
17.2.1

Cleaning the front lens of immersion objectives

The immersion oil should be removed from the front lens of immersion objectives
immediately after using them:
1. First, remove the immersion oil using a clean cloth.
2. Once most of the oil has been removed with a clean tissue, a piece of lens tissue should
be placed over the front lens of the objective.
3. Apply a drop of the recommended solvent. Gently wipe the tissue across the lens surface
in circular movements.
4. Repeat this procedure until the front lens is completely clean. Use a clean piece of lens
tissue each time.
17.3

Care

• Always keep the optical components of the microscope clean.
• Never touch the optical components with your fingers or anything which may bear dust
or grease.
• Always place dust caps over the objective turret positions when no objective is in place
in the turret.
• When not in use, cover the system with a plastic cover or a clean piece of cotton cloth.
•
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Caution when objective lens is contaminated
If an objective lens is contaminated by unsuitable immersion oil or by the
specimen, please contact your local Leica branch office.
Avoid condensation
Allow the entire system to cool down to room temperature before
covering the system with a dust cover. This prevents condensation from
forming below it, which can enter the system and damage it.