Nylon Sunglasses Lens Gradient Purple 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 Purple Tinted
Click to play and see the optical performance and real-world clarity of our purple gradient nylon sunglass lenses — showcasing the seamless CAT 3-to-CAT 2 tint transition.
Technical Specifications
| Material | Optical Grade Nylon (Polyamide) |
| Color | Couture Gradient Purple (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 clarity. This high-grade nylon material completely eliminates the visual distortion that typically drives customer complaints and damages brand reputation.
- Precision Gradient Fade: Avoid costly supply chain delays caused by mismatched lenses. Our high-temp dip-dyeing process guarantees a flawless transition from a CAT 3 top to a CAT 2 bottom with strict Delta E < 1.0 consistency.
- UV400 Compliance: We guarantee 100% blockage of UVA and UVB rays (≤400nm) across both dark and light zones. This full compliance with FDA and CE standards 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 assembly.
- Mechanical Safety: Reliable shatter resistance minimizes warranty claims for premium eyewear collections. These lenses are fully compliant with the FDA 21 CFR 801.410 drop-ball test.
- Design Flexibility: Independent Eyewear Designers can prototype new gradient lines with minimal financial risk. Custom diameters up to 80mm, tailored base curves (2C–8C), and Pantone matching are available starting at a low 300-pair MOQ.
Perfect For
- Premium Eyewear Brands
- Independent Eyewear Designers
- Private Label Distributors
- Luxury Fashion Houses
- High-End Optical Chains
- Concept & Multi-Brand Stores
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
Gradient tint consistency dictates the aesthetic value of high-end fashion lines. A flawless transition from dark to light must align perfectly across the horizontal axis, otherwise the final assembly loses its intended visual signature.
Precision alignment marks integrated into every blank ensure your production line completely avoids the assembly defects that ruin gradient designs. Xinxin runs the entire dip-dyeing and color-matching workflow in-house in Shenzhen, so the subtle gradient fade approved in the design brief is exactly what ships at production scale.
Precision Dip-Dye Manufacturing — How Xinxin Crafts Gradient Nylon Sunglass Lenses in Shenzhen
Click to play and see how our purple 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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