To ensure high optical performance and genuine eye safety, sun glasses women must comply with international testing protocols. Legitimate UV400 rating indicates that lenses block 99% to 100% of UVA and UVB rays up to 400 nanometers. Key regulatory accreditations include the European Union's CE (EN ISO 12312-1), the United States FDA registration with ANSI Z80.3 criteria, and Australia's AS/NZS 1067.1 framework.
Determining genuine lens quality requires rigorous spectrophotometer measurements in accredited laboratories. Testing equipment measures light transmittance across the entire UV spectrum, including UVA (315–400 nm) and UVB (280–315 nm). Quality lenses work by absorbing or reflecting damaging high-energy light before it can reach the human eye.

Leading eyewear manufacturers like Yiwu Green Shine Arts & Crafts Co., Ltd combine 3D modeling technologies with precision optical testing tools. Every batch of frames and lenses undergoes rigorous checks for UV cutoff, impact durability, and daily wear resilience prior to international shipment.
| Standard Name | Target Region | Minimum UV Protection | Primary Evaluation Focus |
|---|---|---|---|
| CE (EN ISO 12312-1) | European Union | 380 nm - 400 nm | Light transmission, clarity, optical power |
| FDA / ANSI Z80.3 | United States | 380 nm - 400 nm | UV ray limits, drop-ball impact safety |
| AS/NZS 1067.1 | Australia & New Zealand | 400 nm | High-UV absorption, clear category labeling |
How does a CE mark guarantee effective UV protection on sun glasses women?
CE compliance requires certified laboratory test reports confirming that lenses meet EN ISO 12312-1 standards for filtering harmful UVA and UVB radiation.
Why is a verified certificate better than a simple UV400 sticker?
A sticker is merely a marketing label, while an official certification is backed by spectrophotometric lab data confirming complete light blockage up to 400 nm.
Are impact resistance tests required alongside optical testing?
Yes, standards such as US FDA 21 CFR 801.410 require mandatory drop-ball testing to ensure lens structural integrity under impact.
Checking valid certificates (CE, FDA, AS/NZS 1067.1) ensures sun glasses women offer authentic UV protection and structural safety. B2B buyers seeking OEM/ODM manufacturing should always review official test documentation before placing bulk orders. Global orders are shipped via Sea Freight, Land Transportation, or Air Freight, with standard payments handled through Corporate Bank Transfer / Wire Transfer. For custom inquiries or technical assistance, contact leoxiao@cngreenshine.com.
Founded in 2016 in Yiwu City, Zhejiang Province, Yiwu Green Shine Arts & Crafts Co., Ltd operates a 130 sqm facility with a dedicated 10-person team. The firm specializes in trendy eyewear, including sunglasses, optical frames, anti-blue light glasses, and reading glasses. Powered by robust R&D capabilities and rapid prototyping, the facility produces over 3 million pairs annually, serving OEM/ODM clients in the US, Germany, Spain, France, Italy, Australia, and Ireland.

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