Hemispherical lens diameter 15mm focal length 10mm optical glass anti-reflection coating led condenser processing plano-convex

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Plano-convex lens 15.5mm focal length around 20 telescope eyepiece accessories optical glass material custom processing

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K9 Plano-convex Lens Diameter 15.96mm Focal Length 44.5mm Surface Can Be Coated with Anti-reflection Coating Optical Film

K9 Plano-convex Lens Diameter 15.96mm Focal Length 44.5mm Surface Can Be Coated with Anti-reflection Coating Optical Film

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K9 Plano-convex Lens Diameter 6.5mm Focal Length 6.725mm Surface Can Be Coated with Anti-reflection Coating Optical Film

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K9 Plano-Convex Hemispherical Lens Diameter 15mm Focal Length 161mm Coated Optical Film Telescope Objective Lens Convex Lens

K9 Plano-Convex Hemispherical Lens Diameter 15mm Focal Length 161mm Coated Optical Film Telescope Objective Lens Convex Lens

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