Biconvex toroid lens

lens with two different radius of curvature

Material : H-K9L

Process : precision optics manufacturing and thin layer deposition

Dimensions:  D12mm, CT 3.8mm,  central thickness 3.1mm

Shape : round biconvex lens with toroid surface

Aspect : S&D 40/20, polished P3

Usage : Calibration lenses

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