What are photochromic sunglasses?
You might be asking yourself, "What does photochromic mean?" Photochromic simply means changing color upon exposure to radiant energy, like UV light rays.
This is exactly what sunglasses with photochromic lenses do: They become dark in the presence of UV rays, allowing you to move from indoor to outdoor lighting conditions smoothly, even on overcast days when the sun's ultraviolet radiation pushes through the clouds.
The technology behind this can differ between brands and styles. Some photochromic lenses may contain silver chloride and halide molecules, while others use proprietary dyes that react to the UV rays.
Many people who have photochromic lenses have prescription photochromic sunglasses, so they don't have to change their prescription eyeglasses when they're exposed to different light.
Non-prescription photochromic sunglasses are also available, and can work as flexible sunglasses that adjust to the different levels of UV light you might encounter.
WDO (Weihai Dingxin Optical Co.,Ltd) is one of the top ten optical lens manufacturers in China.
WDO is one of the most Potential Finished and Semi-Finished Optical Lenses factory located in Weihai City, China. It was establish in 1998 with covering 24400 sqm and 280 employees. The annual production and sales of Optical lenses are 30 million pieces, and the annual sales have exceeded 100 million for five consecutive years.
WDO is a member unit of CHINA OPTOMETRIC & OPTICAL ASSOCIATION.
Key & Advantage Products:
Single Vision Lens: CR-39; 1.56; 1.60; 1.67;
Bifocal Lens: CR-39; 1.56; 1.60
Progressive Lens: CR-39; 1.56; 1.60
Functional Lens: Blue Cut, Photochromic; Photomagic +UV420cut, Polarized; Polycarbonate
RX Service: Free Form; Special Coating; Special Power Range
The integrity of the product and the diversity of customer needs complement each other. What we provide is not only technology, sales or product itself, WDO is more concerned about making customers feel our meticulous service and professionalism. So far, WDO products have been exported to more than forty countries and regions around the world.
In the next few years, WDO will continue to optimize and upgrade the production environment and equipment, further optimize the company's management system, give full play to its own advantages, bring better services and value to customers, and help customers grow!
Our company can also provide lens anti-counterfeiting marking services.
Production
Packing and Shipping
Good heart, good fate.