1.56 Index Blue Ray Blocker Progressive Multifocal Photochromic Lenses

What is the "Blue color light "of digital devises which is said to be the cause of glares, flickers: the shorter the wave length of the light is the more energy it has. The lights with shorter wave length, like ultraviolet rays are said to cause damage to the eyes.
 
Blue color light are lights in the range of visible rays with high frequency. They are lights in-between 380nm to 530nm. (violet to blue lights)
They are worried that they may cause damage to the eyes since they have very short wave length like as ultraviolet rays.
 
In our daily life, we are covered with bright lights such as TV, PC monitors and LED lighting.Many of these lights emit a lot of "Blue color light" to emphasis the brightness.
 

Hard Coating: Also can be called HC coating, is to enhance the hardness of the lens to prevent the substrate scratch
 
Hard Multi Coating: Also can be called HMC or AR coating, is to protect the lens effectively from reflection
 
Super hydrophobic Coating: Also can be called SHMC coating, is to make the lens waterproof, antistatic, anti slip and oil resistance

1.Finished optical lens: 1 pcs/envelope, 500 pairs/carton

1. Standard with envelope

1. Customer service begins tracking the processing status of products daily until you receive the product and confirm the quality.
 
2. You could contact us by SKYPE, Whatsapp, e-mail, voice phone, message at any time!
 
3. We provide free samples. Just send us your requirements, then we will send samples accordingly. However, according to our company rule, our customers need to assume the shipping cost.
 
4. Our payment term: 30% T/T in advance, the balance before shippment
 
5. We guarantee the quality to all buyers all over the world, and got a high reputation about quality from buyers in the past 8 years exporting time.