Opto Sigma

We offer optional protective windows which can be attached to the focusing side of YAG laser focusing lenses. In the event of inadvertent back reflection of high energy beams into the lens, it is likely that the window will absorb the incident energy and shatter preventing further damage to the lens itself. Protective windows are offered uncoated in packages of ten pieces. For optimum performance we advise that the protective windows be Anti-Reflection coated with our A46 V Coat at 1064nm.