Product Overview
Following are the specifications of CR-39 Lenses: 1) Nd = 1.499 2) Power range: a) Sph: -6.25~ -20.00, +6.25~ +10.00 b) Cyl: -2.25~ -4.00, -4.25~ -6.00 3) Diameter: 50 / 55 / 60 / 65 / 70mm 4) Coating: Uncoated / HC / Tintable HC / HMC / HMC + EMI Cr-39 Round Top Bifocal Lenses Finished lenses: a) Nd: 1.499 b) Power range: Sph: 0.00 ~ -2.00 / Add: +1.00 ~ +3.00 Sph: 0.00 ~ +3.00/ Add: +1.00 ~ +3.00 c) Diameter: 70/28mm, 70/24mm, 65/28mm Semi-finished lenses: a) Diameter: 70/28mm, 70/24mm, 65/28mm b) Base: 200, 400, 600, 800 c) Add: +100 ~ +300 d) Semi-finished ST28 and ST24 round top bifocal lens
Following are the specifications of CR-39 Lenses: 1) Nd = 1.499 2) Power range: a) Sph: -6.25~ -20.00, +6.25~ +10.00 b) Cyl: -2.25~ -4.00, -4.25~ -6.00 3) Diameter: 50 / 55 / 60 / 65 / 70mm 4) Coating: Uncoated / HC / Tintable HC / HMC / HMC + EMI Cr-39 Round Top Bifocal Lenses Finished lenses: a) Nd: 1.499 b) Power range: Sph: 0.00 ~ -2.00 / Add: +1.00 ~ +3.00 Sph: 0.00 ~ +3.00/ Add: +1.00 ~ +3.00 c) Diameter: 70/28mm, 70/24mm, 65/28mm Semi-finished lenses: a) Diameter: 70/28mm, 70/24mm, 65/28mm b) Base: 200, 400, 600, 800 c) Add: +100 ~ +300 d) Semi-finished ST28 and ST24 round top bifocal lens
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