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Cylinderical Lens, Elliptical Lens, Parabolic Lens(Symmetric/Asymmetric), Toric Lens, Free Space Aspherical Lens, etc. Division Production Capacity Wavelength UV - Visible - IR Diameter 5~600㎜ Material All Optical Glass Inclusive, Fused Silica, Zerodur Precision Tolerance ±1㎛ Irregularity λ / inch