Product description:
Double convex glass lens
Double-convex Lenses are manufactured with an identical convex surface on both sides of the lens. This kind of lenses has positive focal length and form both real and vitrual images.
Material: BK7, Fused Silica, SF10, CaF2, Sapphire .etc. Paraxial Focal Length Tolerance: ±2% Dimension Tolerance: ±0.2(General). ±0.05(High Precision) Centration: <3 arc min IRR: λ/4@633nm(General),λ/10@633nm(High Precision) Clear Aperture: >80%(Small Size), >95%(Large Size) Surface Figure <1.5λ@633nm(General),<λ/4@633nm(High Precision) Surface Quality: 60/40(General),10/5(High Precision) Bevel: <0.25mm Coating: Uncoated, AR,PR, HR, etc.
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Product Categories : Optical Lens
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