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Product Introduction
Visual Transparency: The Physics of Multi-Layer Anti-Reflective Systems
Standard, uncoated resin lenses reflect a significant portion of incident light, resulting in a loss of transmission and the creation of distracting ghost images. Our Anti-Reflective Hard Multi-Coating (HMC) lenses utilize the principle of destructive interference to virtually eliminate surface reflections. In a specialized high-vacuum chamber, 12 to 16 individual layers of metallic oxides—such as Zirconium and Titanium—are deposited onto the lens surface with atomic precision. These layers are engineered to have specific refractive indices and thicknesses that cancel out reflected light waves across the entire visible spectrum. This raises the light transmission of the lens to over 99%, providing a level of visual clarity that feels almost like the lens isn't there. For the wearer, this translates to sharper vision, improved contrast in low-light conditions, and a significant reduction in the glare from oncoming headlights during night driving. Externally, the HMC treatment removes the "white flash" from the lenses, allowing others to see the wearer's eyes clearly. To ensure long-term durability, the AR stack is anchored by a high-density hard coat (HC) that protects the relatively soft resin substrate from scratches. This balanced combination of optical performance and physical resilience makes HMC the essential baseline for all high-quality corrective eyewear.
Specification
| Light Transmission | > 99.2% |
| Coating Layers | Double-Sided 16-Layer Stack |
| Hardness Grade | 6H - 8H (Bayer Test) |
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
- Safe night-time driving
- Professional photography and videography
- Social and professional interactions
Advantage
- Eliminates distracting ghost images and glare
- Maximizes light flow for superior vision
- Enhances the aesthetic appearance of the wearer
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Customization
Customized For Your
Business
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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: Why does my lens have a green or blue reflection?
- A: This is the residual reflection color of the AR coating, indicating its functionality.
- Q: Is HMC coating resistant to scratches?
- A: Yes, it includes a primer hard-coat layer specifically for scratch resistance.
- Q: Can the coating peel off?
- A: Our vacuum-deposition process ensures a permanent bond that will not peel under normal use.
- Q: Does it help with computer eye strain?
- A: Yes, by reducing the glare from digital screens and overhead lighting.
- Q: Are HMC lenses harder to clean?
- A: Not if they include a hydrophobic top-layer, which our HMC lenses do.
- Q: Can I get HMC on high-index lenses?
- A: It is highly recommended for high-index lenses, as they naturally reflect more light.
- Q: Does HMC block UV?
- A: HMC is for light transmission; UV protection is built into the lens material itself.
- Q: Is it suitable for sunglasses?
- A: Yes, it is often used on the back surface of sunglasses to stop rear-glare.
- Q: How long does the coating last?
- A: With proper care, the coating lasts as long as the prescription is valid.
- Q: Does the coating color change over time?
- A: No, the color is a result of the layer thickness, which is stable.
Payment and Shipping Policy
- Payment: T/T (Telegraphic Transfer), L/C, or Credit Line for established distributors.
- Shipping: Standard Air Express (UPS/DHL) for RX orders; Sea Freight for bulk 1.74 stock blanks.
- Packaging: Premium vacuum-sealed individual envelopes to protect the photochromic layer.
- Lead Time: 15-20 days due to the precision required for 1.74 casting and coating.
Comprehensive Business Information
| MOQ | 50 Pairs |
| Lead Time | 15-20 Days |
| Packaging | Reinforced moisture-proof export cartons. |
| Certifications | FDA, CE, ISO9001. |
| Raw Materials | Advanced 1.74 High-Refractive Monomer. |
| Customization | Specific base curves and custom coating tints. |
