Nylon Polarized Lens Gradient Color Brown 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. Thoroughly eliminates the "rainbow effect" and edge color dispersion typically associated with high-base polarized lenses.
Molecular-Level Polarization
Integrates premium Japan-imported PVA polarized film with the nylon base at a molecular level, ensuring absolutely no delamination even under intense CNC rimless drilling. Delivers a polarization efficiency of ≥99% to cut off severe glare.
Seamless Dual-Zone VLT
High-Temp Precision Dip-Dyeing achieves a flawless transition from Top CAT 3 (8-18% VLT) to Bottom CAT 2 (18-43% VLT). Strictly controlled batch symmetry with Delta E < 1.0 and zero visible color banding.
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.
UV400 & FDA Impact Safety
Offers uncompromised 100% blockage of UVA and UVB rays (≤400nm, ≥99% blocking) consistently across both zones. The ultra-thin 1.5mm profile easily passes the FDA 21 CFR 801.410 drop-ball test.
Nylon Polarized Lens Gradient Color Brown Tinted
Click to play and see the optical performance and real-world clarity of our brown gradient polarized nylon sunglass lenses — showcasing the seamless CAT 3-to-CAT 2 tint transition and glare-cutting polarization.
Technical Specifications
| Material | Optical Grade Nylon + Japan-Imported PVA Film |
| Color | Couture Gradient Brown (Pantone matching available) |
| VLT / Category | Top: 8-18% (CAT 3) / Bottom: 18-43% (CAT 2) |
| 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 / 1.7mm / 1.8mm / 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
- Reports: Light Transmittance Test Report, UV Blocking Test Report, Impact Resistance Test Report, Color Consistency (Delta E) Test Report, Salt Spray Test Report, Polarization Efficiency Test Report
Features & Applications
Technical Features
- Optical Purity: An Abbe Value of 52 rivals crown glass for clarity. This high-grade nylon (PA-12) eliminates the visual distortion that typically drives customer complaints and damages brand reputation.
- High-Efficiency Polarization: Precision-aligned Japan-imported PVA film effectively cuts blinding surface glare. This functional advantage positions your sunglasses perfectly for driving and outdoor lifestyle markets.
- Dual-Zone Tint Control: Precision dip-dyeing creates a clean transition from Top CAT 3 (8-18% VLT) to Bottom CAT 2 (18-43% VLT). Strict batch-to-batch symmetry prevents costly supply chain delays caused by mismatched lenses.
- UV400 Compliance: Your business stays safe from regulatory roadblocks through our guaranteed 100% blockage of UVA and UVB rays (≤400nm).
- Scrap Reduction: Edge-chipping during CNC rimless assembly is virtually eliminated. The ultra-low specific gravity (1.01 g/cm³) delivers mechanical stability and easily passes the FDA 21 CFR 801.410 drop-ball test.
- Scalable Manufacturing: Premium Eyewear Brands can prototype new designs without heavy financial risk. Tailored base curves (2C–8C), custom diameters (up to 80mm), and Pantone color matching start at an accessible 300-pair MOQ.
Perfect For
- Premium Eyewear Brands
- Independent Eyewear Designers
- Private Label Distributors
- Luxury Fashion Houses
- High-End Optical Chains
- Department Store Groups
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 polarized gradient requires reliable glare elimination and a color transition that holds its warmth across the fade. This warm-tone profile provides the visual depth and near-field reading clarity that high-end sunglass collections rely on.
Precision tint control delivers strict batch-to-batch consistency, eliminating the rejected shipments that drain quality assurance budgets. Custom color targets and specific curve profiles can be engineered directly into your brief—Xinxin runs the full customization flow in-house, so the prototype you approve matches bulk production.
Precision Dip-Dye Manufacturing — How Xinxin Crafts Gradient Polarized Nylon Sunglass Lenses in Shenzhen
Click to play and see how our brown gradient polarized 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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