Featuring precision aspheric designs, TECHSPEC® Laser-Line Coated Precision Aspheric Lenses maximize performance in high-power Nd: YAG laser applications. RoHS-compliant lenses have Laser V-coatings with absolute reflectance of <0.25% at design wavelength, and UV fused silica substrate is resistant to thermal expansion. Supplied in 15 and 25 mm dia sizes, 12 models offer numerical apertures (NA) of 0.60, 0.50, and 0.42 and design wavelengths of 355, 532, and 1,064 nm.