CR39 1.499 Single Vision Uncoated Plastic Optical Lenses
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This 1.499 UC lens is uncoated single vision lens. The material of the single vision lens is CR-39. CR39 single vision lenses have a high Abbe number, high light transmission, which means that they can provide clearer visual effects, reduce dispersion phenomenon. In addition, the CR-39 material is relatively light, which makes the wearer more comfortable.
Features of CR39 1.499 Single Vision Uncoated Plastic Optical Lenses
CR39 resin lenses have a transmittance of 92%, slightly higher than glass lenses with 91%. The specific gravity of CR39 is 1.32g/cm3, compared to 2.54g/cm3 for glass lenses, which means that CR39 is lighter. CR39 is more impact-resistant and safer than glass. In terms of blocking ultraviolet rays, CR39 has a stronger protective ability and can effectively block 390nm ultraviolet rays. However, CR39 has a low refractive index and thick lenses. Compared to other high-end lens materials, the production cost of CR-39 resin is lower, so the price is relatively cheap.
Advantages of CR39 1.499 Single Vision Uncoated Plastic Optical Lenses
High Abbe number: CR39 lenses have a high abbe number, which reduces dispersion and provides a clearer visual effect.
High transparency: CR39 lenses have high transparency to provide a clear visual experience.
Strong wear resistance: CR39 lenses have strong wear resistance, especially in the case of uncoated.
Good dyeing performance : CR39 lens is easy to color, can be hardened, dyed and other treatment.
Good solvent resistance and chemical resistance: CR39 lenses have good resistance to most chemicals.
Good heat resistance: CR39 lens has good heat resistance.
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