Ideally, your optics are kept pristine and no cleaning is necessary-- but the reality is that almost all optics will require cleaning at some point. Optics are like pets, when it comes to maintenance: each one has its own unique characteristics and issues. The first step is to ensure you have a clean, contaminant free work surface such as a tray or hard surface table. Next, use only clean, powder-free gloves or finger cots. Always handle optics by the edges to avoid contaminating or damaging the lens surface.
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The recommended procedures for cleaning optics are largely the same whether you are working with lenses or mirrors. The typical cleaning process involves first blowing dust and dirt off the optical component with pressurized air, then using the drag method to slowly move moistened lens paper across the optical surface. We’ve previously shared tips for avoiding damage during optical cleaning. However, a few key differences make mirrors more susceptible to accidental damage.
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Dirty optics are trouble. They diminish performance, and in high-energy systems, they can even cause physical damage. Plus, well...they just plain look bad. When faced with an unsightly smudge or bit of dirt, it’s tempting to buff it off with the nearest piece of Kleenex. More likely than not, if you do that, you’re going to end up with a dirty, damaged optic. So, put down that handkerchief. Here are five things you need to know before you touch any optical surface.
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