Nylon Sunglasses Lens Gradient Gray Tinted
Engineered Optical Excellence
Every lens inherits five core performance pillars — from optical purity to impact safety.
Supreme Optical Clarity
Engineered exclusively as 0.00D Plano Lenses with an Abbe Value of 52, rivaling crown glass for ultimate optical purity. Low internal stress design guarantees minimal optical distortion and zero edge color fringing.
Seamless Dual-Zone VLT
High-Temp Precision Dip-Dyeing achieves a flawless transition from Top CAT 3 (8-18% VLT) for glare blocking to Bottom CAT 2 (18-43% VLT) for near-field clarity. Strictly controlled batch symmetry with Delta E < 1.0 and zero visible color banding.
Ultra-Lightweight & Crack Resistant
Specific Gravity of 1.01 for a truly weightless wearing experience. Delivers exceptional mechanical stability, absolutely immune to edge chipping during CNC drilling and slotting for rimless designs.
UV400 Full Protection
Offers uncompromised 100% blockage of UVA and UVB rays (≤400nm, ≥99% blocking) consistently across both the dark and light transition zones.
Precision Alignment Marks
To solve the industry pain point of tilted gradient lines during CNC edging, all gradient blanks feature high-precision, washable eco-ink horizontal axis lines. This completely eliminates alignment defects and maximizes your rimless assembly yield rate.
Nylon Sunglasses Lens Gradient Color Gray Tinted
Click to play and see the optical performance and real-world clarity of our gray gradient nylon sunglass lenses — showcasing the seamless CAT 3-to-CAT 2 tint transition.
Technical Specifications
| Material | Optical Grade Nylon (Polyamide) |
| Color | Couture Gradient Gray (Pantone matching available) |
| VLT / Category | CAT 3: 8-18% (Top / Dark Zone) / CAT 2: 18-43% (Bottom / Light Zone) |
| UV Protection | UV400 (≤400nm, ≥99% blocking) |
| Abbe Value | 52 |
| Specific Gravity | 1.01 g/cm³ |
| Optical Accuracy | Plano 0.00D; Residual Astigmatism ≤0.09D; Residual Prism ≤0.12Δ, measured at the optical reference point. |
| Base Curve | 2C / 4C / 6C / 8C Available |
| Center Thickness | 1.5mm - 2.0mm (±0.05mm) |
| Diameter | 71mm / 75mm / 80mm (custom available) |
| Impact Test | FDA 21 CFR 801.410 Pass |
| Certifications | CE / FDA / UKCA / GB / ANSI / EN / AS/NZS |
| MOQ | 300 Pairs/Specification |
| Origin | Shenzhen, China |
| Logo | Laser engraving (recommended for gradient lenses), Screen printing, UV printing, Decal, Embedded logo |
Production-Ready Integration
Everything you need to source with confidence
- Acetate Frames — Highly recommended. Excellent chemical resistance against acetate plasticizers. Completely immune to stress cracking caused by Acetate's cooling shrinkage during fitting.
- Rimless / Drill-mount — Supreme tensile strength ensures zero edge chipping during CNC drilling and slotting.
- Titanium / Carbon Fiber / Metal / TR90 Frames — Optimal compatibility, lightweight and corrosion-resistant, ideal for premium eyewear frame designs.
- Pantone matching for precise gradient base colors and bi-color transitions (e.g., Sunset Gradient)
- Custom gradient zone ratio — dark zone depth adjustable (e.g., top 40% / bottom 60% of lens height)
- B-AR (Back-Surface AR) coating recommended to eliminate rear reflections
- Coating upgrades: HC / Oleophobic / Hydrophobic / Anti-fog
- Simple Packaging: PE bag + white box, Premium Packaging: Individual color box + cloth bag, Blister: Transparent blister box, Custom: Brand LOGO packaging
- MOQ: 300 Pairs/Specification
- Sample Lead Time: 7–10 working days, allowing you to verify gradient quality before bulk order
- Bulk Lead Time: 15–20 working days (subject to quantity and customization complexity)
- Custom Options: Pantone color matching, custom VLT zone ratio, dark-zone depth control, bi-color gradient transitions, B-AR coating, OEM/ODM laser logo, custom packaging
- Reports: Light Transmittance Test Report, UV Blocking Test Report, Impact Resistance Test Report, Color Consistency (Delta E) Test Report, Salt Spray Test Report
Features & Applications
Technical Features
- Optical Purity: An Abbe Value of 52 rivals crown glass for clear, distortion-free vision. By utilizing high-grade nylon (PA-12), you can eliminate visual fatigue and maintain high customer satisfaction for your premium sunglass lines.
- Dual-Zone Tint Engineering: High-temp precision dip-dyeing achieves a consistent fade from CAT 3 (Top) to CAT 2 (Bottom). This advanced gradient transition provides functional near-field clarity without sacrificing overhead sun protection, which actively reduces costly batch rejections.
- UV400 Compliance: Full 100% blockage of UVA and UVB rays (≤400nm, ≥99% blocking) is enforced consistently across both the dark and light transition zones. This strict compliance keeps your business safe from regulatory roadblocks and liability risks.
- Scrap Reduction: Edge-chipping during CNC drilling is virtually eliminated. The ultra-low specific gravity of 1.01 g/cm³ delivers the mechanical stability needed to lower material waste during rimless assembly.
- Mechanical Safety: Reliable shatter resistance minimizes warranty claims for premium eyewear collections. These lenses fully satisfy the FDA 21 CFR 801.410 drop-ball test to provide robust impact protection.
- Scalable Manufacturing: Independent Eyewear Designers can efficiently prototype new lines with minimal financial risk. Custom diameters up to 80mm, tailored base curves (2C-8C), and Pantone color matching are available starting at a highly accessible 300-pair MOQ.
Perfect For
- Premium Eyewear Brands
- Independent Eyewear Designers
- Private Label Distributors
- Optical Retailers
- Concept & Multi-Brand Stores
- Luxury Fashion Houses
Dual-Zone VLT Reference
| Gradient Zone | VLT (%) | Category | Usage Environment |
|---|---|---|---|
| Top (Dark Zone) | 8% - 18% | CAT 3 | Direct sunlight, outdoor glare blocking |
| Bottom (Light Zone) | 18% - 43% | CAT 2 | Near-field clarity, reading, driving view |
Note: The gradient transition is continuous with zero visible banding. Delta E < 1.0 batch-to-batch consistency is enforced at the factory level.
Overview
A flagship sunglass collection needs a gradient lens that balances overhead glare control with near-field visibility—the transition must be continuous, avoiding abrupt shifts that disrupt the visual experience.
The advanced dip-dyeing process ensures a consistent tint fade, so the finished product delivers optical precision without the visual banding that drives costly returns. Custom base curves and tailored coating stacks can be requested in the production brief—Xinxin manages the entire customization flow in-house, guaranteeing the final sample matches the intended design language.
Precision Dip-Dye Manufacturing — How Xinxin Crafts Gradient Nylon Sunglass Lenses in Shenzhen
Click to play and see how our gray gradient nylon lenses are precision dip-dyed and quality-controlled — from blank forming through dual-zone tint verification.
International Quality Standards
Active certifications — verified & compliant
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Ready to Elevate Your Sunglass and Goggles Lenses?
Partner with XinXin Optics for premium custom lens manufacturing. We offer competitive MOQs and industry-leading lead times, specifically tailored for global brands.
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