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Lens Design: Spherical and Aspheric Lenses
Key features and benefits of aspheric lenses:
- Reduce vision distortion, the curvature of lens surface change gradually to reduce optical aberrations on the peripheral of lenses, providing a clearer and more realistic vision
- Thinner and lighter
- Comfortable and aesthetic
Lens Coating Options:
- UV resistant coating: Blocks UV light
- Stain resistant coating: Allows dirt and stains to be wiped off easily
- Scratch resistant coating
Lens Material:
|
Material |
Glass |
Plastic |
|
Lens design |
Spherical |
Spherical / Aspherical |
|
Advantages |
- High transmittance - Scratch resistant - Does not turn yellow |
- Light-weighted - More sturdy than glass - Can be tinted |
|
Disadvantages |
- Heavy - Easy to break |
- Not as scratch resistant as glass - Transmittance is not as good as glass |
