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Product Introduction
Optical Convergence: Contrast Enhancement via Rapid Darkening Brown Photochromics
The Fast Darkening Photochromic Brown lens is specifically designed for users who prioritize high contrast and a warm visual aesthetic. Unlike standard gray lenses, brown (or amber) photochromic lenses provide a unique "contrast-boosting" effect. The brown molecules are exceptionally efficient at filtering out blue light components, which reduces atmospheric haze and scatter, resulting in sharper object outlines and more vivid colors. This is particularly beneficial in overcast, foggy, or high-glare driving environments, as it enhances depth perception and visual comfort. Our "Fast Darkening" series uses a high-density matrix of photochromic molecules that react instantly to UV exposure, transforming into a rich, warm amber-brown that can reach a Category 3 darkness (over 80% absorption), comparable to professional sunglasses. In the fading stage, we utilize advanced thermodynamic technology to allow the molecules to release energy and return to a clear state rapidly. These lenses are ideal for outdoor enthusiasts, such as golfers and hikers, who need to protect their eyes while maintaining a sharp, vivid view of their surroundings. Combined with our ultra-hydrophobic coating, these lenses remain clear in variable weather, representing the perfect marriage of aesthetic warmth and professional-grade ocular protection.
Specification
| Color Tone | High-Contrast Amber/Brown |
| Darkness Depth | Up to Cat.3 Sunglasses Level (>80%) |
| Kinetic Tech | Thermodynamic Fast-Fade Molecules |
| Material Compatibility | 1.56, 1.60, 1.67 Index |
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
- Outdoor activities requiring depth perception (golf, hiking)
- Drivers needing clear vision in haze or variable light
- Users preferring a warm, relaxing visual tone
- Premium lifestyle eyewear with a high-fashion look
Advantage
- Enhanced visual contrast and sharper object definition
- Warmer tone reduces eye fatigue and relaxes ciliary muscles
- Exceptional darkening depth for high-glare environments
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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: What is the benefit of brown over gray?
- A: Brown increases contrast and makes colors look more vivid and warm.
- Q: How dark does it get?
- A: In full sunlight, it can reach the darkness of a standard pair of sunglasses.
- Q: Is it good for foggy weather?
- A: Yes, brown lenses are excellent for improving visibility in haze or fog.
- Q: How fast does it return to clear?
- A: It returns to a nearly transparent state within 2-3 minutes of entering indoors.
- Q: Does it protect against blue light?
- A: Yes, brown lenses are naturally superior at blocking harmful blue light.
- Q: Can I get them in high-index 1.67?
- A: Yes, we offer them in 1.56, 1.60, and 1.67 options.
- Q: Will it fade over time?
- A: Our UV-stable coating protects the molecules for long-term performance.
- Q: Is it suitable for rimless frames?
- A: Yes, especially if ordered in the high-tensile 1.60 MR-8 material.
- Q: Are they available as progressives?
- A: Yes, we can combine this color with any of our digital progressive designs.
- Q: Does it look stylish?
- A: Many high-end fashion brands prefer the warm amber tone for its luxury aesthetic.
Payment and Shipping Policy
- Payment: T/T, L/C, or Credit Line for established partners.
- Shipping: International Air Express (UPS/DHL) for RX; Sea Freight for bulk.
- Packaging: Premium vacuum-sealed individual pouches for protection.
- Lead Time: 15-20 days for advanced surfacing and coating.
Comprehensive Business Information
| MOQ | 50 Pairs (Stock) |
| Lead Time | 15-20 Days |
| Packaging | Reinforced moisture-proof export cartons. |
| Certifications | FDA, CE, ISO9001. |
| Raw Materials | Contrast-Enhancing Photochromic Monomers. |
| Customization | Available with specific base curves and AR coatings. |
