1, Essilor
French brand, formed by the merger of Essel founded in 1849 and Silor founded in 193 1.
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.
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.
4. Rodenstock
A pioneer in manufacturing lenses and frames in Germany, the production base is located in the historic city of Munich, Germany, the sales network covers more than 80 countries around the world, and there are 14 lens production bases in 12 countries.
5. Seiko
Japanese brand, 188 1, was founded in the watchmaking industry; in 192 1, it set foot in the design and manufacture of spectacle frames; in 1964, it set up a Japanese-American lens center and began to grind and process lenses.
All-optical color-changing glasses are:
1, Alicia:
It is the brand of Shanghai Kuaiji Optoelectronic Technology Co., Ltd. ... Shanghai Kuaiji Optoelectronic Technology Co., Ltd. is a scientific and technological glasses company specializing in R&D, design, trade and wholesale.
2. Le Shen:
Founded Lashio brand in 2009, engaged in domestic chain optical shops. 20 13, the company transformed into the e-commerce industry, and gathered a group of domestic optometry graduates to advocate medical optometry.
3. Parzin:
Glasses are simple, natural and elegant in Europe and America. Since the brand was founded, Parsons has been keeping close cooperation with well-known design companies in the industry. With excellent quality and good reputation, Parsons quickly ranks among the first-class glasses brands in China, and is a well-deserved new brand and industry leader in the glasses industry.
4. essay road:
A well-known brand of lenses and a world-famous brand of glasses, 1849 was founded in France and is an expert in the field of optometry in the world. It mainly produces and sells high-quality ophthalmic optical lenses and is one of the largest optometry enterprises in the world.
5. Rhodes stock:
A well-known brand of lenses, 1877, was founded in Germany. It is a pioneer in manufacturing lenses and frames in Germany and enjoys an excellent reputation as a lens brand. It is one of the few high-end brands in the world that can provide both lenses and frames.
Color change principle:
The principle of color-changing glasses is to change color when encountering ultraviolet rays, not sunlight. Therefore, it is not recommended for drivers to wear color-changing lenses, because in the car, the window blocks ultraviolet rays and is not easy to change color. In addition, ultraviolet protection is related to the material of the lens and has nothing to do with the color of the lens. Many ordinary lenses are also 100% UV-proof.
Good quality color-changing glasses are of course eye protection. But if the quality is not good, it is better not to wear it. Because the color of the lens is dark, the eyes will not protect themselves, and the pupils will not shrink when encountering light. In this way, if the lens is ultraviolet light, more ultraviolet light will enter the pupil, which is easy to cause cataracts.
Refer to the above content: Baidu Encyclopedia-Full True Optical Color Changing Glasses