1, Essilor
French brand, formed by the merger of Essel founded in 1849 and Silor founded in 193 1.
From 65438 to 0959, Essilor invented progressive multifocal lenses, which is its most famous Wan Li Road series. Later, revolutionary Crizal films with extremely high hardness and cosmic films famous for their lightness, thinness and impact resistance came out one after another, enjoying a worldwide reputation.
1990 and American PPG industrial company * * jointly established panoramic optics, which is the patent holder of lens film color change technology. Now Essilor has acquired the optical lens part of Nikon, which will greatly improve the lens transparency and visual comfort.
2. Zeiss
German brand, founded in 1846.
The leading brand in the field of lens optics, 22 Nobel Prize winners all use Zeiss instruments for research and development.
/kloc-for more than 60 years, Zeiss's brand has represented continuous innovation, precision manufacturing and excellent quality, and almost defined the industry standard.
As the physicist Ernst Karl Abbe is the inventor of Abbe number of lens and one of the founders of Zeiss, Zeiss lens has always paid special attention to the control of Abbe number. At the same refractive index, the dispersion of Zeiss lens is much lower than that of other brands, and the wearing comfort is greatly improved.
1974, Zeiss invented multilayer antireflection film, which significantly improved the antireflection performance of lenses.
20 14 introduced diamond cubic platinum coating, which is the hardest hard coating in Zeiss history. Zeiss has also developed many specific lenses for different people and different scenes (such as children and adults, driving, digital lenses), which are widely praised in the industry.
3, TAG Heuer (Hoya)
Japanese brand, founded in 194 1 year.
TAG Heuer lenses have always occupied the first place in the Japanese market, and are also in the forefront in the field of global resin lenses.
TAG Heuer's attitude towards production and advanced workshop management mode have always been praised by the industry, and its product quality control is very strict. The lenses in the garage are precisely produced in clean workshops, and all the enterprises invested in China have passed the ISO900 1 International Quality System Certification and IS0 1400 1 International Environmental System Certification.
The lens factories in Shanghai and Guangzhou are the only zero-defect factories that passed the national production license certification in 2005.
It adopts the world's exclusive hardening buffer layer technology, which not only ensures that the hardness of the lens film is almost close to that of the glass lens, but also avoids the visual interference caused by the refractive index difference between the film and the substrate, which is both comfortable and durable.