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The ANSI Z87.1 standard is OSHA's benchmark for workplace eye protection, mandating compliance under 29 CFR 1910.133. It classifies safety eyewear through markings like Z87+ (high-impact resistance) and Z87-2 (prescription compatibility), with specialized codes for UV (U), infrared (R), and light filtration (L). The 2020 update introduced O2 for reduced optical clarity needs and D3-D5 ratings for chemical/dust protection. Features like anti-fog (X) and variable tint (V) address environmental challenges. For employers, understanding ANSI Z87.1 markings ensures proper hazard matching—from flying debris to radiation. Manufacturers like Comarc leverage these standards to produce certified eyewear, combining regulatory compliance with advanced protection. Adherence minimizes injuries while avoiding OSHA penalties, making ANSI Z87.1 the cornerstone of occupational eye safety.

Producing high-power lenses (+8.00D) for curved sunglasses requires decentered lens cutting to ensure optimal optical performance. Leading eyewear manufacturers in China follow strict ISO and ANSI standards for eye former alignment, guaranteeing precision in lens shaping. The process involves shifting the optical center toward the bridge and upper frame, requiring careful lens blank sizing to avoid material waste. Chinese eyewear factories use marking pins and geometric alignment to maintain accuracy during cutting. Key steps include: Calculating lens offset (X1 – X2) for machine adjustment Aligning optical centers with frame curvature Conducting decentration tests before mass production China eyewear factory direct suppliers emphasize quality control, ensuring high-curve sunglasses meet exact optical standards. Trust professional eyewear factory in China for advanced lens-cutting expertise.

1. Multilayer 2. Metallic acetate

HD acetate is also a kind of acetate material, in the design and mass production, HD also has its limitations like other acetate materials.

Natural /warmth/classic/ light/thin，The combination and collision of aluminum and wood bring different elements and perspective effects to the eyewear.

Consumers are getting more and more aware of their environmental impact when making purchases.

The stated nominal dimensions of the spectacle frame shall be in accordance with the measuring system specified in ISO 8624.

All sunglasses for European Union (‘EU”) market should comply with harmonized standard EN1836 of the Personal Protective Equipment Directive (89/686/EEC) to access the European Union (