The color of the film layer of the glasses lens of Essilor is light blue, and it will appear light yellow-green after being wiped with alcohol. This is the genuine Essilor glasses! After we unpack the lens, the color of the lens should be light blue. If it's directly green, it's fake Essilor glasses! In fact, the color of the film of the eSight lens is very unique, light yellow and green. Generally, the glasses with green film made in China are dark green, and the unique light yellow-green color of Essilor glasses cannot be seen.
2, look at the manufacturer's security code query
Essilor glasses upgraded the anti-counterfeiting of all Essilor glasses products. After each pair of Sight-on-Sight glasses appears, the unique query code of Sight-on-Sight glasses will be affixed, and each query code can only be queried two or three times to avoid the repeated use of anti-counterfeiting codes. We can go to Essilor official website to make an inquiry, but remember the accuracy of the input. Whether it is two or three inquiries or two or three input errors, we can't make another inquiry, so we can only call the manual customer service number.
Extended data:
Essilor 1849 originated in Paris, France, and has a history of 160 years. Essilor focuses on the field of ophthalmology optics, and its lenses fully integrate human vision and optical technology, making it a leader in the world optometry industry. It has 50,700 employees and 460 garages in 56 countries around the world, and its sales network covers 1 15 countries.
References:
Baidu Encyclopedia-I Record