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Product Introduction
Introduction: Distortion-Free Vision from Edge to Edge
Standard aspheric lenses only correct the front surface of the lens, but for high-precision vision, both surfaces must be optimized. Our Double Aspheric Premium Lenses represent the pinnacle of optical design. By applying complex mathematical curves to both the front and back surfaces, we virtually eliminate peripheral "swim" and oblique astigmatism. This results in a lens that provides a much wider clear viewing zone than traditional designs, which is especially beneficial for high-prescription wearers and those with significant astigmatism.
Beyond optical performance, the double aspheric design allows the lens to be even flatter and thinner than a standard aspheric lens. This dramatically improves the aesthetic appearance of the eyewear, reducing the "bulge" of plus lenses and the "thick edge" of minus lenses. These lenses are crafted using high-precision digital surfacing technology, ensuring that every millimeter of the lens is calibrated for visual excellence. If you are looking for the most natural visual experience possible, our double aspheric series is the ultimate choice.
Specification: Precision Engineering Data
| Lens Design | Bi-Aspheric / Double Aspheric Digital Surface |
| Optical Zone | Full-Field Sharpness (Minimized Distortion) |
| Refractive Index | 1.60, 1.67, 1.74 |
| Abbe Value | 32 - 42 (Material Dependent) |
| UV Protection | 100% UV400 Protection |
| Specific Gravity | 1.30 - 1.47 g/cm³ |
| Coating | Ultra-Low Reflection SHMC |
Technological Highlights: Premium Monomers and Coating Integrity
- High-Purity Monomer Selection: We exclusively use high-performance monomers (e.g., MR-series) to achieve superior tensile strength and optical purity, resulting in excellent clarity and minimal risk of yellowing over time.
- Precision Liquid Casting Process: The lenses are produced via a controlled liquid casting method that ensures uniform material density and refractive index consistency across the entire blank, which is critical for accurate therapeutic power zones.
- Advanced Vacuum Multi-Coating (SHMC): Coatings are applied in a high-vacuum chamber, using multiple layers of metallic oxides to create a durable, anti-reflective stack. This process guarantees maximum light transmission and minimal glare.
- Thermal Curing Optimization: A slow and precise thermal curing cycle is employed to maximize the material’s resistance to internal stress, ensuring the finished lens remains stable and optically perfect under varying temperature conditions.
- Integrated Peripheral Defocus Geometry: The therapeutic design is engineered into the mold itself for cast lenses, or applied via digital surfacing for semi-finished blanks, guaranteeing the accuracy and consistency of the myopia control zone geometry.
Application: High-Precision Visual Needs
- High Astigmatism Patients: Provides superior clarity for those with complex cylinder powers.
- High Power Prescriptions: Drastically reduces lens thickness and facial distortion.
- Professional Pilots & Drivers: Essential for sharp peripheral awareness and wide fields of view.
- Architects & Designers: Ensures straight lines remain straight across the entire lens surface.
- Premium Retail Optical: Targeted at customers seeking the absolute best in lens technology.
Advantage: The Gold Standard of Clarity
- Minimized Peripheral Distortion: Clear vision extends all the way to the lens edge.
- Ultra-Flat Profile: Thinner and more aesthetically pleasing than any other resin lens design.
- Reduced Magnification Effect: Eyes appear more natural behind the lens, regardless of power.
- Lightweight Construction: Advanced geometry reduces material volume and weight.
- Instant Adaptation: Precision curves align perfectly with the eye's natural movement.
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Customization
Customized For Your
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Complete Customization Capability
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Professional Lens Architecture
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Functional Coating Customization
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Digital Rx Customization
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Branding & Packaging
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Delivery & Support
Frequently Asked Questions (FAQ)
- Q: What is the benefit of "Double" aspheric vs regular aspheric?
- A: It offers even flatter lenses and a much wider area of clear peripheral vision.
- Q: Do these make my eyes look more natural?
- A: Yes, they minimize the "bug-eye" or "small-eye" effect significantly.
- Q: Are they good for astigmatism?
- A: They are arguably the best design for correcting high astigmatism accurately.
- Q: Can I get these in 1.74 index?
- A: Yes, 1.74 Double Aspheric is our thinnest and most premium lens.
- Q: Is there an adaptation period?
- A: Most users adapt immediately because the vision is so natural.
- Q: Are they more expensive than standard lenses?
- A: They are a premium product reflecting the advanced digital manufacturing required.
- Q: Do they come with anti-reflective coating?
- A: Yes, we use our best SHMC coating to match the high optical quality.
- Q: Can I use them for sports?
- A: Yes, the wide field of view is excellent for situational awareness in sports.
- Q: Are they available as progressives?
- A: Double aspheric technology is typically applied to premium single vision lenses.
- Q: How do I know if I have a double aspheric lens?
- A: You can see it in the extreme flatness of the lens profile compared to standard curves.
Payment and Shipping Policy
- Payment: T/T or L/C at sight. Secure online portals available for smaller RX orders.
- Shipping: High-security air freight to prevent surface damage during transit.
- Lead Time: 15-20 days due to complex dual-surface digital surfacing.
- Packaging: Premium shock-proof individual job envelopes.
Comprehensive Business Information
| MOQ | 20 Pairs (Custom RX) / 100 Pairs (Stock) |
| Lead Time | 15-20 Days |
| Packaging | Serialized premium envelopes for authenticity. |
| Certifications | CE, FDA, ISO9001. |
| Raw Materials | Premium Optical Monomers (MR Series). |
| Customization | Power-specific digital surface optimization. |
