Explore our flagship OEM optical frames and precision-crafted sunglasses manufactured under stringent ISO9001 and CE quality standards.
Analyzing the engineering transition toward ultra-lightweight, high-tenacity rimless optics in international commercial and optical markets.
Unlike traditional full-rim optical structures that rely on external frame tension, OEM Frameless Sunglasses eliminate the peripheral rim entirely. Force distribution relies entirely on direct lens-to-hinge and lens-to-bridge compression anchors. This requires ultra-precise CNC micro-milling, zero-tolerance lens notch drilling, and optimized stress-dispersion compression bushings to prevent radial cracking under torsional stress.
Modern rimless optical manufacturing has shifted away from brittle CR-39 monomer resins toward high-tenacity polyamide polymers, nylon (PA), and high-index polycarbonate lens blanks. Coupled with aerospace-grade 100% pure titanium and beta-titanium arm temples, frameless sunglasses achieve total weight metrics as low as 12 to 15 grams while maintaining superior ballistic impact resistance under ISO 12312-1 standards.
For global eyewear brands, private label distributors, and luxury fashion houses, frameless architecture provides an infinite canvas for custom lens edge beveling, laser-etched perimeter logos, diamond-cut facet edges, and custom gradient vacuum coating colors (PVD). As an established OEM/ODM factory supplier, Yintai Eyewear delivers scalable mass-manufacturing capabilities for these intricate custom configurations.
Located in Shenzhen, Guangdong Province, China — the global hub for premium eyewear manufacturing. Integrating technology R&D, precision engineering, and worldwide sales export.
Located in the industrial park at Fuji Land Building, equipped with fully automated production lines, CNC machining centers, Class 10,000 cleanrooms, ensuring stable output capacity and uncompromised precision quality control.
We house over 200 dedicated employees, including a 10-member elite technical and design R&D team that continuously drives product innovation, process optimization, structural stress analysis, and mold refining.
From raw material procurement and mold development to finished assembly, we achieve complete vertical integration across core production processes. This translates to controlled costs, rapid prototyping, and faster delivery cycles.
★ Factory Area: Over 5,000 sq. meters
★ Employees: 200+ full-time staff
★ Capacity: 20,000+ pcs monthly volume
★ Certifications: ISO9001, CE, RoHS
★ Inspection: Complete IQC, IPQC, FQC
★ Yield Rate: 99% factory pass rate
★ Experience: 15 years B2B manufacturing
★ R&D Core: 10 senior optical engineers
★ Customization: Full OEM/ODM engineering
★ Response: Guaranteed within 24 hours
★ Support: Dedicated overseas sales team
★ Service: One-stop design to delivery
Understanding material selection, mechanical tension dynamics, and precision tooling tolerances required for long-lasting rimless optical structures.
| Component / Parameter | Material / Technology Option | Mechanical / Optical Benefit | OEM Customization Capability |
|---|---|---|---|
| Lens Substrate | Polyamide (Nylon) / High-Index Polycarbonate / TAC Polarized | High crack resistance, zero stress craze under screw pressure, 100% UV400 protection. | Custom lens thickness (1.8mm–3.0mm), edge chamfering, diamond tinting. |
| Bridge & Temple Hardware | Pure Titanium (Gr2) / Beta-Titanium / Swiss TR90 / High-Density Acetate | Ultra-lightweight (12g–18g total frame weight), hypoallergenic, flexural memory retention. | Laser logo engraving, PVD vacuum plating (Gold, Rose Gold, Gunmetal, Matte Black). |
| Fastening Mechanism | Dual-Compression Plugs / Micro Teflon Washers / Stainless Steel Screws | Eliminates lens wobble, buffers structural impact, prevents micro-cracking at drill points. | Customized screw head profile, thread locker locking compound integration. |
| Nose Pad Assembly | Medical-Grade Silicone / Titanium Air-Cushion Pads | Ergonomic weight distribution, slip-resistant, non-yellowing skin safety. | Custom laser-branded nose pad core, adjustable beta-titanium wire arms. |
| Optical Surface Coating | Multi-Layer Anti-Reflective (AR), Hydrophobic Nano-Coating, Mirror Finish | Reduces glare, repels water and smudge oil, enhances scratch resistance to >3H. | Custom AR reflection colors (Blue, Green, Gold), gradient mirror density. |
Automated 5-axis CNC machining centers drill rimless mounting holes with ±0.02mm tolerance to avoid tension points.
Diamond wheel edge polishing creates crystal-clear facet bevels, providing high visual clarity and aesthetic elegance.
Eco-friendly Physical Vapor Deposition ensures scratch-resistant metal finishing compliant with EU REACH standards.
Every batch undergoes drop-ball impact testing, hinge flex endurance (>20,000 cycles), and saltwater corrosion verification.
Tailored B2B manufacturing turnkey programs for global brand distributors, boutique optical chains, and industrial clients.
Yintai Eyewear maintains an active commitment to international trade standards and eco-conscious manufacturing. Our operational framework incorporates end-to-end traceabilities:
Frameless sunglasses and rimless optical frames serve diverse market verticals across global consumer demographics:
Pioneering next-generation manufacturing processes to drive lightweight comfort, bio-based sustainability, and smart optical integration.
Yintai Eyewear is actively integrating selective laser melting (SLM) 3D titanium printing into our custom prototype laboratory. This technology allows rapid turnarounds for hyper-customized rimless temple arm geometries and intricate bridge lattice structures without mold tooling overhead.
Responding to global carbon reduction mandates, our R&D team has qualified 100% bio-acetate and plant-derived polyamide resins for frameless lens and temple production. These materials maintain optical clarity while reducing life-cycle carbon footprints for eco-focused eyewear brands.
We are engineering lightweight rimless frame platforms designed to seamlessly house micro-waveguide AR (Augmented Reality) lenses and ultra-miniature Bluetooth audio temples, bridging traditional luxury optical craftsmanship with next-gen smart eyewear requirements.
Clear answers regarding OEM customization options, minimum order quantities, engineering tolerances, and export logistics.
Explore our ultra-light pure titanium rimless eyewear, hand-carved designer optical frames, and polarized fashion sunglasses.
Yintai Eyewear