Color-changing lenses are becoming increasingly popular because they not only provide UV protection as sunglasses, but also can be worn on a daily basis. Most importantly, they are suitable for single light, presbyopia, and plain light.
How to choose photochromic lenses?
● Look at the discoloration
Base change: The more traditional color-changing technology, the lens in the raw material mixed with color-changing agent, after the production of the entire lens filled with color-changing agent. So the discoloration is on the lens.
Film change: The new color-changing technology refers to the surface of the lens spin coated with a layer of color-changing film, to achieve lens color change. Its discoloration is in the membrane on the surface of the lens.
As the discoloration part of the lens is on the film layer, it is not limited by the lens material. No matter ordinary aspheric surface, progressive, anti-blue light, 1.56, 1.60, 1.67, 1.71, etc., it can be processed into film changing lenses. More varieties, consumers can choose more.
● Look at the degree of discoloration
General color changer can not change color with the change of light environment, can only achieve a color switch under strong light and indoor, and will retain a certain background color in the indoor. However, a good color changing lens it will automatically adjust the color of the lens according to the change of light, according to your needs tailored for you, in the shade will have a good color changing effect, indoor lens will return to the normal state, and ordinary lenses, to ensure the lens light transmission.
● Look at the color uniformity
In traditional discoloration lenses, the discoloration effect is affected by the thickness of different areas of the lens because the discoloration agent is added inside the lens material. The panda eye effect occurs when the center of a lens is thin and the sides are thick, so the center of the lens changes color or recovers more slowly than the sides.
Jiangsu Green Stone Optical Co., Ltd. is a professional optical lens manufacturer with strong combination of R&D, production and sales. We have production base of 65000 square meters and more than 350 employees. With introduction of complete sets of advanced equipment, new production technology and moulds, we sell our optical lenses not only in the domestic market, but also export to the world.
Our lens products involves almost all types of lenses. Product range covers 1.499, 1.56, 1.60, 1.67, 1.70 and 1.74 index, including single vision,bifocal, progressive, blue cut, Photochromic, blue cut photochromic, Infrared cut etc. with HC, HMC and SHMC treatment. Besides finished lens, We also manufactures semi-finished blanks. The products are registered with CE&FDA and our production certified by ISO9001& ISO14001 standards.
We positively introduce excellent management technology, comprehensively import Corporate Identity System and enhance the external image of company and brand.
Post time: Nov-17-2022