II-VI ZnSe Infrared Lens - 20mm OD Focal Length:2.5" (63.5mm) or creative studio

or creative studio

Laser cut from 6mm (1/4") Baltic Birch giving it a contrasting scorched edge

or as a conversation piece in your living area

Plans for a 294mm high x 397mm diameter (11

II-VI ZnSe Infrared Lens - 20mm OD Focal Length:2.5" (63.5mm) or creative studio20mm diameter Zinc Selenide (ZnSe) meniscus lens This lens is suitable for most CO2 laser cutters with a 20mm OD lens housing. II VI Infrared is the world leader in laser optics, delivering an unbeatable combination of innovation, quality, and expertise. Meniscus lenses are designed to minimize spherical aberration and produce the smallest possible focal spot. Specification: Material: II VI ZnSe coating 10,600nm Lens type: Meniscus Edge thickness : 2.