ZEISS, the German optical giant, unveiled its new-generation DuraVision Gold UV coating in Shanghai. Endowed with revolutionary technologies, this product has obtained international ISO 17223 certification. It has achieved all-round upgrades in core indicators such as light transmittance, yellowing resistance and wear resistance, thereby redefining the performance benchmarks for high-end lenses.

In terms of technology, the coating optimizes the nano-layer stacking structure and adopts a deposition process of 12 alternating layers of silicon oxide and titanium oxide. While maintaining a high light transmittance of 99.7%, it reduces the yellowness index of the lens base from 15 (a common level for traditional coatings) to 3, representing an 80% reduction. The Global R&D Director of ZEISS Vision Care explained that the reduced yellowness is attributed to the adoption of a new chromium-free substrate material combined with the precise control of atomic layer deposition (ALD) technology, which fundamentally prevents the coating from yellowing due to oxidation.

Beyond its core optical performance, the coating also boasts outstanding practical properties. Its surface is designed with a bionic lotus leaf structure, resulting in a water contact angle of 110° and a 50% improvement in stain resistance. Moreover, it remained free of scratches even after 5,000 wear-resistance tests. Market feedback indicates that within the first month of its launch, the product was made available in 5,000 stores worldwide, and the sales volume in stores located in China's first-tier cities surged by 120% month-on-month. The General Manager of ZEISS Vision Care China stated that a dedicated version tailored for prescription sunglasses will be launched subsequently to further meet segmented market demands.