II-VI Infrared ZnSe 101.6mm Focal Length Lens 20mm OD
20mm diameter ZnSe meniscus 101.6mm or 4" inch Focal Lenth lens
This lens is suitable for most CO2 laser cutters with a 20mm OD lens housing. It provides a Focal Length of 101.6mm or 4" inch.
This lens has a longer focal length than is generally sold with CO2 laser cutters, the longer focal length allows for working on wider materials such as case foam or is more forgiving over varied height material or materials with a slight camber.