Crown glass Traditional crown glass was once the most common material used for eyeglasses. Although it has some advantages, such as scratch resistance and exceptional clarity, glass is heavy and can shatter easily. It also does not have built-in UV protection, so it is not the best choice f...
Poly 1.59 Polycarbonate PC Photochromic Transition Eyeglasses Lenses Photogrey Hmc Optical Lens US$10.00 1-499 pair US$0.10 500+ pair Product Details Customization: Available Function: for Presbyopic, for Astigmia, UV Protection, for Myopia Mater...
Thickness: Polycarbonate has a higher index of refraction than Trivex (1.58 vs. 1.53), so polycarbonate lenses are about 10 percent thinner than Trivex lenses ---Weight: Polycarbonate lenses are lighter than glass lens, so polycarbonate is more comfortable to...
Polycarbonate vs. PVC: Applications and Uses The main applications for polycarbonate (extruded sheet and molded parts) are listed below: Medical equipment: Cameras, lenses, medical tools. Eye protection: Safety glasses and face shields. Optical lenses: Spectacle lenses, instrument lenses, fiber optic...
Ophthalmic Lenses Chinese 1.59 Spin Polycarbonate Photochromic Hmc Optical Eyeglasses Prescription Lenses US$10.00 1-499 pair US$0.10 500+ pair Product Details Customization: Available Function: for Presbyopic, for Astigmia, UV Protection, for...
Thickness: Polycarbonate has a higher index of refraction than Trivex (1.58 vs. 1.53), so polycarbonate lenses are about 10 percent thinner than Trivex lenses ---Weight: Polycarbonate lenses are lighter than glass lens, so polycarbonate is more comfortabl...
Thickness: Polycarbonate has a higher index of refraction than Trivex (1.58 vs. 1.53), so polycarbonate lenses are about 10 percent thinner than Trivex lenses ---Weight: Polycarbonate lenses are lighter than glass lens, so polycarbonate is more comfortable ...
Wholesale Cr39 1.61 Asp UV400 Photochromic Single Vision Lens Mr-8 Photogrey Eyeglasses Lens US$0.10-10.00 / pair Cr39 1.56 Single Vision Lens Hmc Lensar Coating Prescription Cr39 Optical Lenses US$0.10-10.00 / pair Wholesale Cr39 1.56 Blue L...
Thickness: Polycarbonate has a higher index of refraction than Trivex (1.58 vs. 1.53), so polycarbonate lenses are about 10 percent thinner than Trivex lenses ---Weight: Polycarbonate lenses are lighter than glass lens, so polycarbonate is more comfortable t...
---Weight: Polycarbonate lenses are lighter than glass lens, so polycarbonate is more comfortable to wear for long periods of time 1.59 Polycarbonate (pc) Lens Product Name Diameter Monomer 1.59 Polycarbonate PC Photochromic HMC Optical Lens 65/70mm...