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Refraction index Nd=1.60 & Nd=1.67 |
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Abbe value 41 (Nd=1.60) & 31 (Nd=1.67) |
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Density 1.28 g/cm3 (Nd=1.60) & 1.35 g/cm3 (Nd=1.67) |
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Thinner and lighter than CR-39 1.5 lenses & 1.56 middle index lenses. |
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High scratch resistance, super-hard protection coated. |
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HMC+EMI coating available. Super Hydrophobic also available. |
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UV cut-off at 400nm, absorbing UV-ray and providing effective protection to the eyes. |
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UV400 + Blue Cut is available. |