Common Focus Lens Failure & ZnSe Info
Preface: This article covers common Lens Failures for Nova, Odin and Bolt Series lasers with ZNSE lenses. Common lens types are Beam Combiners, Brewster Windows and Focus Lens in the laser head.
What Causes a Lens to Fail:
Dirty Lens - If a lens has a dust or film buildup, instead of passing the laser energy it begins to absorb it and rapidly fails. Keep the lens clean and even check the lens if you have not run the machine in a while
Inadequate Air Flow - You never want to have 0 air flow or pressure on a focus lens. This can allow dust and smoke film to build up
Moisture - Make sure you have adequate air\water separation and avoid operating your air assist supply in an area that is colder than the machine operating area
Mechanical Shock - Do not drop, hammer, or throw the lens. It will shatter into pieces
Common Failure Examples:
Some Failure Examples |
How to Prevent Failures:
Keep Your Lens Clean : Follow the guidance in this article Inspecting and Cleaning Nova Series Optics
Adjust your Air Assist Properly: Follow the guidance in this article: How To Adjust The Dual Stage Air Assist
Remove Moisture from Air Assist: Follow the guidance in this article: Thunder Laser External Air Compressor Guidelines
Don't Drop the Lens - Simple as that. Keep your wrists on the table as you clean the lens if you remove it from the housing to clean
Sourcing Replacement Lens:
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