EVEN THE BEST OF LENSES CAN GO BAD. Thermal stress, mechanical stress, and contamination can all cause a lens to fail. When that happens, your business can suffer from costly downtime or, in the event of catastrophic lens failure, even costlier laser system repairs. Conversely, you don’t want to discard a perfectly usable lens that may only need to be cleaned to return it to peak performance. The question, then, is how can you determine when a lens is truly in need of replacement? II-VI Infrared has your answer. Our NEW, portable mini Lens Stress Analyzers enable you to see lens stress before catastrophic lens failure occurs. Or see that an under performing lens only needs to be cleaned, rather than discarded.