Spherical Lens Precise Optical Ball Lenses PARAMETER: BRD Optical ball lenses are highly polished spheres made of optically transparent homogeneous materials. Carefully controlled manufacturing process produces spheres with precise diameters and unsurpassed surface quality. Material optical glass Diameter 0.2mm-100mm Diameter Tolerance +0.0-0.05mm Surface Qualty 60/40, 40/20.20/10 Surface Frigure lambda/2~lambda/8 Coating as customer's request
