Acylindrical Lens Acylindrical lenses are the cylindrical counterpart to an aspheric lens and designed to combine the aberration-reducing benefits of an aspheric surface with the one-dimensional focusing of a standard cylindrical ... Inquire Price Sold by: Photonchina Ships from: China Specifications Substrate: N-BK7, Fused Silica (FS), UV Grade Fused Silica (UVFS), CaF2, ZnSe, Ge, N-SF5, H-LAK54, H-ZLaF52, H-ZLaF5B, S-NPH1, D-LaK6, Not Specified, Other Diameter: 3 – 500 mm Wavelength Range: 450 – 1550 nm Wavefront Error: 500 nm Numerical Apertures: 0.45-0.50