PC bifocal lens

Detailed Product Description

The first internal-stress-free PC lens ever produced in mainland China

 

Internal stress free

After several years researches and tests, Dongbao Optical has developed internal-stress-free PC lenses which eliminates the rainbow effect in the essential lens area (from optical ceter to 2.5-5.0cm from the edge). It effectively avoid headache , eye swollen pain and fatigue of the eyeglasses wearer resulting therefrom.

Anti-Scratch

We introduced a new hard coating technology which makes lenses to resist outside scratches and impacts in a long term. It effectively reduce the probability of wear and tear and keeps lenses clear.

Anti-reflection

Dongbao MC PC lenses have 7 coating on double sides and its transmission rate can reach 99.5% by eliminating reflection lights from different directions.

Solid Coating

We use a special hard coating technology to secure the strong adhesion of AR coats.

Hydrophobic, Dustproof and Anti-Fog

Atmospheric dust, haze and moisture are main factors to effect cosmetic cleanness of lenses. Dongbaos special hard coating technology also improve the performance of hydrophobic, dustproof and anti-fog of lenses.

Built-in UV Blocking

Not like mineral and other plastic lenses, PC lenses are made of material with native UV proof functions. So they can durably block UVA and UVB which are harmful to humans eyes.

Anti-glare

The surface of PC lenses is extremely smooth and it can reduce the contrast scattering inside the lenses, increase the contrast and saturation of image and reduce the hurt to retina due to glare.

Electromagnetic Wave Proof

Dongbao EMI coating PC lenses can absorb the harmful EM waves produced from computers and other electromic devices.

Hyper Light and Thin

Thanks to the very light raw material and Dongbaos spevial optical design, our PC lenses are lighter and thinner than competitors. It makes the glasses wearer more comfortable and confident.

Impact resistant

PC lenses are 10 times stronger against impact compared with plastic lenses and 60 times compared with mineral lenses. Its material is also used to produce bullet-proof shield.