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Porro Prism, Right-angle Prism, Amci-roof Prism, Dove Prism, Cube Beam Splitter, Pechan-Schmidt Prism, Penta Prism, etc. Division Production Capacity Wavelength UV - Visible - IR Material All Optical Glass Inclusive Angular Tolerance 5” Size Tolerance ±0.01㎜ Surface Tolerance λ/10