Nylon Sunglasses Lens Dual 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-Color Transition
Advanced Double High-Temp Precision Dip-Dyeing achieves a flawless, harmonious transition from the top color to a contrasting bottom color. Strictly controlled batch symmetry with Delta E < 1.0 ensures zero muddy color mixing or visible banding at the intersection zone.
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 top and bottom color 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 Dual Gradient Color Gray Tinted
Click to play and see the optical performance and real-world clarity of our gray dual gradient nylon sunglass lenses — showcasing the flawless transition between two contrasting colors.
Technical Specifications
| Material | Optical Grade Nylon (Polyamide) |
| Color | Dual-Color Gradient Gray (Pantone matching available for both zones) |
| 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.
- Independent Pantone matching for both top and bottom gradient base colors (e.g., Yellow to gray, or Blue to gray Dual Gradient)
- Custom transition ratios and overlap control (e.g., 50/50 split, or 60% top color dominance)
- B-AR (Back-Surface AR) coating recommended to eliminate rear reflections
- Coating upgrades: HC / Oleophobic / Hydrophobic / Anti-static
- Custom packaging and labeling, including PE bag, white box, individual color box, cloth bag, or 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: OEM/ODM, 2-Tone Pantone matching, custom transition ratios, B-AR coating, 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 (PA-12) eliminates the visual distortion that typically drives customer complaints and damages brand reputation.
- Precision Dual-Tint Control: Advanced double high-temp precision dip-dyeing ensures a flawless top-to-bottom transition (CAT 3 to CAT 2). Strict batch-to-batch color matching completely eliminates rejected shipments due to muddy color mixing.
- UV400 Compliance: We guarantee 100% blockage of UVA and UVB rays (≤400nm) across both color 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 rimless frame 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.
- Scalable Manufacturing: Luxury Fashion Houses can prototype new gradient lines with minimal financial risk. Custom transition ratios, tailored base curves (2C–8C), and independent Pantone matching for both zones 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-Color Gradient Reference
| Gradient Zone | Example VLT (%) | Category | Description |
|---|---|---|---|
| Top Color Zone | 8% - 18% | CAT 3 | Deep tint for direct sunlight and glare blocking |
| Bottom Color Zone | 18% - 43% | CAT 2 / CAT 1 | Contrasting tint for near-field clarity and aesthetic transition |
Note: The bi-color gradient transition is continuous with zero muddy color mixing. Delta E < 1.0 batch-to-batch consistency is enforced at the factory level.
Overview
Luxury fashion houses building distinctive eyewear collections need a dual-gradient lens that delivers a flawless color transition alongside optical purity. A clean, seamless fade between two contrasting zones elevates a standard frame into a premium statement piece.
Advanced dip-dyeing technology controls the intersection boundary precisely, ensuring your design team’s color story translates to the finished product without rejected batches. Independent tint matching for both the top and bottom zones gives your brand complete creative control, with every sample built in-house at Xinxin from resin to final coating.
Double High-Temp Precision Dip-Dyeing — How Xinxin Crafts Dual Gradient Nylon Lenses
Click to play and see how our dual gradient nylon lenses are precision double 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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