Factory Finished 1.56 Single Vision Photochromic Photogrey Photobrown Hmc Optical Lens

What Are Photochromic Lenses?More commonly, photochromic lenses  from clear to tinted when exposed to sunlight, effectively allowing a single pair of eyewear to function as both your sunglasses and eyeglasses! Not only do these types of lenses help to reduce glare from the sun, they also provide 100 % UV-protection for your eyes regardless of tint whether their tinted or not.  How Do Photochromic Lenses Work?Well for starters, since they adapt their tint based on how bright it is outside, glasses with variable tint lenses are ideal for people who wear both glasses and sunglasses, and frequently go inside and outside. One of the main advantages of combining the two into one saves you from having to carry around two sets of glasses everywhere. That means no more trying to fit bulky glasses cases in your pocket or trying to remember the last place you stored your shades.  Features★Extreme clear in doors,85% darkness out outside.★Darkening to 85% within 30 seconds, fading to clear  within 60 seconds.★Harmful UV rays 100% eliminated.★Durable using life, consistent colour changing for 2 years.About CoatingOur FactoryWDO (WEIHAI DINGXIN OPTICAL) is one of the most Potential Finished and Semi-Finished Optical Lenses factory located in Weihai City, China. Our Key & Advantage Products:Single Vision Lens:CR-39;1.56;1.60;1.67;1,74Bifocal Lens: CR-39; 1.56;1.60Progressive Lens: CR-39; 1.56; 1.60Functional Lens: Blue Cut, Photochromic; Photomagic +UV420cut, Polarized; PolycarbonateRX Service: Free Form; Special Coating; Special Power RangeOptical Equipment;Frames  Why choose us? -A Grade optical lens -20+ years experience -Various logo customization-One of the top 10 manufacturers in China Optical Lens industry -Best service and the most cost-effective quality productQuality AssurancePacking and shipping  /* January 22, 2024 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1