| 　Mineral 1.7/1.8/1.9 Hi-index Lenses |
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| Refraction
index (Nd) |
Abbe value |
Density (g/cm3) |
Color |
| 1.7 |
35 |
3.10 |
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| 1.8 |
35 |
3.65 |
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| 1.9 |
31 |
4.10 |
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Lighter, slimmer, and better looking, particularly suitable for high power lenses. |
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AR multi-coating and AR+EMI coatings are available in greenish and bluish colors. |
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Absorbing UV-ray and providing effective protection for the eyes. |
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Copyright 2021 by Y & S (Beijing) Opto-Electro Industries Ltd. All Rights Reserved. |
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