Sheet for Optical Gallium Arsenide Lenses, High-Quality GaAs Focusing Lenses with Multiple Focal Lengths (20 x 101.6 mm)

High Quality Material These lenses are made of high quality gallium arsenide (GaAs) providing exceptional heat resistance and durability for long lasting performance. Versatile Focal Lengths Available in a full focal length range, including 38.1mm, 50.8mm, 63.5mm and more, suitable for various applications in machines from 100W to 200W. DOUBLE SIDED COATING Features a resilient double sided coating that increases durability and minimizes the need for frequent maintenance or cleaning. Precision engineering: Designed for optimal focusing capabilities to ensure high-quality performance in optical applications and improve overall efficiency. Easy selection: Clear specifications for diameter and focal length allow you to easily select the right lens for your specific usage needs.