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The protective lens material is ZnSe (zinc arsenic), so it is relatively brittle and afraid of falling; it must be noted when disassembling: it should not be too hard, and it cannot collide with hard objects. There are anti-reflection coatings on the surface, which are afraid of pollution, fear of moisture, oiliness, and fear of scratching. Therefore, it is required to provide dry and degreasing air in the work. Do not directly handle the lens of the laser splitter to protect the lens because of skin oil. Permanent damage to the lens surface. Conversely, you can use gloves and their special sets for operational control. For smaller lenses, it is more convenient to use optical tweezers or vacuum tweezers. No matter what method is used to protect the lens from the laser cutter, it can only be clamped along a non-optical surface, such as the frosted edge of the mirror edge.
Under normal circumstances, it is necessary to inspect the laser splitter protective lens before and after use and before and after cleaning. Because most contaminants and surface defects are relatively small in size, we often need to use amplification equipment when inspecting lenses. In addition to amplifying equipment, sometimes we need to use a relatively bright light to illuminate the optical surface, enhancing the specular reflection intensity of surface contaminants and defects, which makes it easier to spot contaminants and defects.
When cleaning a laser splitter lens, always use a clean wipe and optical grade solvent (trait: transparent, colorless liquid), this is to prevent damage by other contaminants. Wipe paper must be wetted with a suitable solvent and must not be used dry. In terms of softness, the available wiping paper is a cotton Webril wiping paper or an applicator such as a cotton ball, a lens paper, and a cotton swab.