Semi-finished Polarized CR-39 Lens Dia: 75mm Cener thickness 10mm
color: Gray / Brown / Green (G15)
Base: 200B/400B/500B/600B/800B
(Base 800 is special designing, optical centre decentralized designing)

when you order, please delcare the based you need, minimum order quanity 100 pairs required, mixed based items are acceptable,shipping charge is free.

there ar different base as below:

CR-39 POLARIZED SEMI-FINISHED LENS
Diameter	Base Curve	True Curve	Back Curve	Radius	Edge(mm)
75mm	200B (+2/-3)	2.09	3.00	250.24	10.3
75mm	400B (+4/-4)	4.03	4.00	129.78	10.5
75mm	600B (+6/-6)	6.00	6.00	87.17	10.4
75mm	800B (+8/-6)	7.90	6.00	66.2	10.0
80mm	500B (+5/-5)	4.90	5.00	106.73	10.0
Available Color:film color(light grey/Grey/Brown/Green)

Polarizing lens is the only lens type that actually can reduce glare from an excessively bright point relative to other objects in the visual field, if the bright point is caused by a reflection of light from the sun. Polycore's SunClear Polarized lens line has the best "Color" of all others on the market place. The richness and true colors such as the Gray, have been reported to be better than leaders in the industry.

Maximum protection:
•All our Polarized lenses ensure 100% UV 400nm cut off, ensuring maximum
protection against the most damaging UV light.
•For extra protection, our Polarized lenses are available with blue-blocking/melanin technology to shield against high energy visible light
(380nm - 500nm)
Semi visible markings:
•Easy identification of axis
•For semi finished single vision: semi visible marking indented to make the effective diameter larger to accommodate large frames.
It also serves as an easy reference during lens blocking.
Stringent quality control:
• Our Polarized lenses have been engineered to meet and exceed the most rigorous delamination testing.
• Colour is checked 100% of the time to ensure narrow deviation between manufacturing batches and shipments.
• Meets and exceeds impact standards and impact resistant regulations
• Foil position is measured 100% of the time, ensuring strict adherence to our specs.
Optional treatments:
• Backside AR coated
• Frontside super hydrophobic coated
• Mirror coated (customized colours available)
semi-finsihed CR-39 polarzied lens

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