High Quality CR-39 1.499 Colorful Tinted Sunglasses Lens
Model No.
DGS1600
Material
CR-39
Refractive Index
1.499
Diameter/mm
71
73
75
80
Thickness/mm
1.8
2.0
2.2
1.65-2.1
Curve
0
200
450
600
800
Abbe Value
58
Coating
Un-coated/ HC/HMC/Mirror/UV400
Delivery Time
7-15 days
Cheap, Simple, High Quality
Meet CR-39
CR-39 is the name of the monomer base that makes up the lens material in inexpensive plastic lenses.
Owned by PPG, this material revolutionized lens making. Half as heavy as glass, far less likely to shatter, and optical quality nearly as good as glass. CR-39 is heated and poured into optical quality glass moulds – adapting the qualities of glass very closely.
Most lenses in glasses today are made of CR-39 plastic, or very close copies (since the material is owned by PPG).