Suited for applications requiring minimal wavefront distortion, TECHSPEC® λ/20 PCX Lenses have precision fused silica substrate, λ/20 surface accuracy, and 20-10 surface quality. RoHS-compliant lenses also offer wavelength range of 0.2–2.2 µm and clear aperture of 24. Full data package is available featuring interferogram and measured results for diameter, radius, center thickness, and centration. Uncoated, 25 mm dia lenses come in focal lengths of 50, 75, 100, and 150 mm.