Nylon Sunglasses Lens Dual 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-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 Purple Tinted
Click to play and see the optical performance and real-world clarity of our purple dual gradient nylon sunglass lenses — showcasing the flawless transition between two contrasting colors.
Technical Specifications
| Material | Optical Grade Nylon (Polyamide) |
| Color | Dual-Color Gradient Purple (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., deep purple to light purple, or purple to purple 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, plain 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-Tone Transition: Avoid costly supply chain delays caused by mismatched gradient lenses. Our advanced double high-temp dip-dyeing technology maintains strict Delta E < 1.0 color consistency across the purple gradient zones for every production run.
- UV400 Compliance: We guarantee 100% blockage of UVA and UVB rays (≤400nm). 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.
- Scalable Manufacturing: Independent Eyewear Designers can prototype new lines with minimal financial risk. Custom diameters up to 80mm, 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
- Concept & Multi-Brand Stores
- E-commerce D2C Brands
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
A dual-color gradient nylon lens provides a distinctive aesthetic transition that sets high-end optical portfolios apart. The dip-dyed fade introduces a compelling visual dynamic, bridging reliable glare defense with a striking design element.
Strict tint chemistry holds the color standard across both transition zones, ensuring production lines run without the QA stops that break delivery schedules. The entire customization flow takes a target tint sequence and returns a signed-off prototype, all built in-house at Xinxin so the initial sample matches the final production run.
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
.webp)
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.
Start Your Project
Submit your project information, and our engineering team will deliver a detailed preliminary review within 24 hours.
Thank You!
Your inquiry has been sent successfully. We will contact you within 24 hours.
Or contact us directly:
Related Series
View All Collections
Polarized Solid Red
PC Polarized Lens Solid Color Red Tinted
Single Green
Nylon Sunglasses Lens Solid Color Green Tinted
Gradient Blue
Nylon Sunglasses Lens Gradient Blue Tinted
8C Decentered Gold Mirror Coated