Material Glass Lens Type Coated Usage/Application Non Metal Beam Emission Shape 50.8/63.5 Light Source Type Wave Brand Sanni Wave Length Range 1064 Diameter Tolerance 20MM Minimum order quantity: 1 Piece   Laser lenses are the optical lenses that are used in laser-based devices for a variety of laser applications such as but not limited to laser illumination, laser collimator, laser scanning, laser dimensioning, material processing, laser welding, laser cutting, laser tracking, line/ pattern generator, etc.