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Single Vision Lenses
Middle-Index 1.55 |
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Middle-Index 1.55 Spherical
Raw Material: NK-55 |
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| Refractive Index |
1.55 |
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| Specific Gravity |
1.28 |
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| Abbe value |
38 |
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| Diameter |
73/70/65mm |
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| Coating |
Green |
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As an antistatic lens, it is suitable for people working extensively with computers. Wearers will feel an exceptional difference when watching TV.
· Having low specific gravity and high index
makes it lightweight and thin.
· High clarity with over 98% transmissivity.
· Extremely strong surface with no surface
diffusion phenomenon.
· Completely blocks UV rays under 380nm.
· Exceptional antistatic effect.
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Middle-Index 1.55 Spherical UV400
Raw Material: NK-55 |
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| Refractive Index |
1.55 |
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| Specific Gravity |
1.28 |
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| Abbe value |
38 |
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| Diameter |
73/70/65mm |
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| Coating |
Green HMC, UV400 |
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This lens has a UV protection and antistatic effect; it is suitable for people working extensively with computers. Wearers will feel an exceptional difference when watching TV.
· A low specific gravity and high index makes
it lightweight and think.
· High clarity with over 98% transmissivity.
· Completely blocks UV rays under 400nm.
· Exceptional antistatic effect. |
Middle-Index 1.55 Aspherical
Raw Material: NK-55 |
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| Refractive Index |
1.55 |
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| Specific Gravity |
1.28 |
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| Abbe value |
38 |
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| Diameter |
73/70/65mm |
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| Coating |
Green HMC, UV400, ITO |
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Unlike the mid-index aspherical lens provided by other companies, it is uniquely coated with a UV protective and antistatic layer. It is lightweight and thin with low specific gravity and high index.
· The astigmatism in spherical lens is resolved
for greater clarity (Aspeherical design)
· Exceptional aspherical design for a clear and
comfortable field of vision.
· Exceptional antistatic effect.
· Completely blocks UV rays under 400nm. |
Spherical Lens vs. Aspherical Lens
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Spherical Lens)
-Hazy around the fringes of the field of vision
-Astigmatism formed on sloped surfaces.
-Convex in shape, making it a drawback aesthetically |
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Aspherical Lens
-The focus is hardly ever hazy.
-Low chromatic dispersion and no haziness around the fringes
of the field of vision
-Little occurrence of astigmatism formed on sloped surfaces.
-Thinner and lighter than spherical lens.
-Aesthetically appealing.
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