Explore our flagship precision-engineered acetate and titanium optical frames. Manufactured in accordance with rigorous global photoprotective and bio-compatibility standards.
In the contemporary optical manufacturing ecosystem, UV400 certification represents far more than a routine compliance mark; it is the definitive benchmark for photoprotective efficiency against solar ultraviolet radiation. Solar radiation reaching the Earth's surface spans ultraviolet spectrums including UV-B (280–315 nm) and UV-A (315–400 nm). Standard UV filters historically blocked radiation only up to 380 nanometers, leaving eye structures vulnerable to high-energy atmospheric UV-A photon penetration. UV400 certification guarantees complete attenuation of all electromagnetic radiation with wavelengths up to 400 nanometers, preventing phototoxic maculopathy, pterygium formation, cortical cataracts, and acute photokeratitis.
For global procurement directors, brand owners, and optical retail syndicates, sourcing from certified UV400 manufacturers requires deep verification of material science, optical purity, structural longevity, and multi-spectral anti-reflective coatings. Modern premium lenses—whether constructed from Cellulose Propionate, High-Index Trivex, Polycarbonate, or CR-39 resin—integrate UV absorbers directly into the monomer matrix or apply nano-scale sputtered dielectric stacks to reflect harmful spectral bands without compromising visual transmittance or inducing chromatic distortion.
Yintai Eyewear is a premier manufacturer based in Shenzhen, Guangdong Province, China, specializing in high-precision eyewear production. After 15 years of dedicated engineering and vertical development, we have evolved into a modern high-tech enterprise integrating technological R&D, precision manufacturing, and global supply chain distribution.
The Foundation of Our Hard Power
Located in the industrial park at Fuji Land Building, equipped with: fully automated production lines, CNC machining centers, Class 10,000 cleanrooms, and more, ensuring both stable production capacity and consistent quality.
The Foundation of Our Hard Power
We have over 200 dedicated employees, including a 10-member elite R&D and technical team that continuously drives product innovation and process optimization.
The Foundation of Our Hard Power
From raw material procurement and mold development to finished product assembly, we have achieved vertical integration across core production processes. This translates to more controllable costs, faster delivery cycles, and consistent quality.
★ Factory Area: Over 5,000 square meters of modern factory space.
★ Employee Scale: Over 200+ full-time employees.
★ Monthly Capacity: Up to 20,000+ units, supporting large-scale enterprise order demands.
★ Complete Certifications: Fully compliant with international standards including ISO9001, CE, RoHS, and FDA guidelines.
★ Strict QC Workflow: Implementing comprehensive IQC, IPQC, and FQC inspection protocols, maintaining a qualification rate of 99%.
★ Industry Experience: 15 years of deep industrial specialization and global market intelligence.
★ Technical Team: 10-person expert engineering team providing custom CAD/3D modeling, rapid prototyping, and structural optimization.
★ Prompt Response: Overseas sales team guaranteeing detailed quote & inquiry response within 24 hours.
★ One-stop Service: End-to-end management spanning CAD design, mold tooling, prototyping, mass assembly, custom packaging, and global door-to-door logistics.
Through semantic search evaluation and B2B user intent mining across international optical buyers, procurement priorities have shifted from simple low-cost assembly toward holistic supply chain agility, verified regulatory compliance, and customized photoprotective product engineering. Modern brand managers face strict time-to-market constraints while demanding high structural integrity.
Traditional optical manufacturers impose rigid minimum order quantities (MOQs) exceeding 1,000 pieces per SKU. Yintai Eyewear disrupts this paradigm by offering flexible ordering starting at MOQ 10 units for in-stock models, paired with 7-day rapid custom prototyping for OEM/ODM private label brands.
By controlling raw material selection (e.g., Italian Mazzucchelli acetate, Japanese pure titanium grade 2/4), precise CNC carving, five-barrel hinge soldering, electroplating, and optical coating, Yintai minimizes delivery lead times while mitigating supply chain disruption risks for international distributors.
Global buyers in Europe and North America increasingly demand bio-based cellulose acetate (phthalate-free, biodegradable) paired with eco-friendly UV400 TAC polarized lenses, meeting stringent REACH and EU environmental directive requirements without sacrificing physical resilience.
| Procurement Vector | Standard Wholesale Supplier | Yintai Eyewear OEM/ODM Solution |
|---|---|---|
| MOQ Requirements | 500 - 1,200 Pieces / Style | Flexible MOQ from 10 Pieces (Ready Stock) |
| Sample Prototyping Lead Time | 25 - 40 Days | 7-Day Rapid Prototyping via CAD/3D Precision Tooling |
| UV Protection Standard | Basic UV380 (Partial UVA Transmission) | Certified UV400 (100% Spectral Block ≤400nm) |
| In-Stock Catalog Depth | Limited Standard Tooling | 20,000+ In-Stock Models for Instant Branding |
| Quality Assurance Rate | Variable (90% - 95%) | 99% Verified Qualification Rate (IQC/IPQC/FQC) |
Achieving certified UV400 status combined with crystal-clear optical fidelity requires a sophisticated multi-layer engineering approach. Lenses undergo physical vapor deposition (PVD) sputtering inside Class 10,000 cleanrooms to deposit thin chemical stacks that control reflection, refraction, and absorption.
During polymerization of optical grade CR-39 resin or high-impact Polycarbonate, specialized organic benzotriazole ultraviolet light absorbers are directly infused into the monomer structure. This guarantees that UV blocking capability is permanent and unaffected by surface scratches or long-term atmospheric exposure.
Lenses are treated with vacuum-deposited anti-reflective (AR) coatings consisting of alternating layers of Silicon Dioxide ($SiO_2$) and Titanium Dioxide ($TiO_2$). These coatings eliminate internal glare, boost luminous transmittance above 98.5%, and prevent rear-surface reflection of UV rays into the human eye.
The outermost layer consists of a fluorosilane nano-coating, imparting high contact angles (>110 degrees) against water and organic oils. This layer reduces surface smudge accumulation, improves scratch resistance (tested via Bayer abrasion assays), and simplifies cleaning maintenance for end users.
Exporting custom optical products across international borders requires stringent adherence to region-specific health and safety standards. Yintai Eyewear maintains an active compliance matrix ensuring seamless customs clearance and market authorization across major global jurisdictions.
All UV400 sunglasses and prescription optical frames conform to EU Personal Protective Equipment (PPE) Regulation 2016/425 and EN ISO 12312-1:2013/A1:2015 standards, verifying non-transmittance of solar radiation below 400nm and compliance with nickel release restrictions under REACH Annex XVII.
Products shipped to North American markets undergo impact resistance testing pursuant to FDA 21 CFR 801.410 (Drop Ball Test—dropping a 5/8-inch steel ball from a height of 50 inches without fracturing). Optical properties meet ANSI Z80.3:2018 non-prescription sunglasses standards.
Our Shenzhen production base operates under ISO 9001 certified workflows. Every batch is evaluated across three strict checkpoints: IQC (Incoming Quality Control of raw acetate/titanium/lenses), IPQC (In-Process Quality Control during CNC milling and hinge mounting), and FQC (Final Quality Control for optical alignment and cosmetic finish).
As optical technology converges with smart wearable trends and advanced material science, Yintai Eyewear is actively pioneering developments in next-generation photoprotective platforms:
Integrating ultrafast molecular photochromic dyes that switch from clear state (T > 92%) indoors to high-density tinting (T < 15%) outdoors within less than 15 seconds, maintaining permanent 100% UV400 protection across all states.
Developing hybrid substrate filters that simultaneously block 100% of UV solar radiation up to 400nm while selectively filtering high-energy visible (HEV) blue light in the 415–455nm spectrum, reducing digital eye strain for hybrid workers.
Combining ultra-thin (15g class) aerospace-grade Beta-Titanium components with precision 3D-milled bio-acetate rims to maximize ergonomic comfort without sacrificing structural durability or frame stability.
UV380 protection blocks electromagnetic wavelengths up to 380 nanometers, which excludes a significant portion of high-energy UV-A radiation between 380nm and 400nm. UV400 certification guarantees complete attenuation of solar ultraviolet rays up to 400nm, offering total protection for the retina, cornea, and crystalline lens against long-term phototoxic damage.
We maintain an active inventory warehouse in Shenzhen stocking over 20,000+ ready-to-ship optical frames and sunglasses. This infrastructure allows brand owners, independent opticians, and eCommerce sellers to order custom-branded products starting at just 10 pieces per model, reducing initial capital risk and inventory lead times.
Every production batch undergoes spectrophotometric testing to confirm 0% transmittance below 400nm. Mechanical integrity is verified using FDA-compliant Drop Ball impact testing (21 CFR 801.410), hinge cycle durability testing (>20,000 flexes), and nickel release mass spectrometry to ensure full compliance with EU REACH and US FDA regulatory standards.
Utilizing our in-house 10-member technical R&D engineering team and high-precision CNC machining centers, we can convert 2D design renders or CAD specifications into fully functional physical samples within 7 business days. Mass production lead times range between 15 to 30 days depending on material complexity.
We specialize in premium eco-friendly materials, including high-density cellulose acetate (offering superior color depth and hand-polishing gloss), pure grade 2/4 lightweight titanium (weighing as little as 15 grams for ultra-comfort), memory stainless steel, and high-impact polarized TAC/Polycarbonate lenses.
Browse our additional certified optical frames and custom UV400 wholesale product catalog. Click any item to view detailed engineering specifications and OEM manufacturing options.
Yintai Eyewear
