... 3. Transimission: over the 87% 4. Density(g/cm3) 1.70 white hi-index glass lens1. Diameter: 65mm2. Abble ... , we can supply you the lens as following: 1. GLASS LENS (index 1.523, 1.70, uncoated & A/R, size 65/70 ... mm)2. CR-39 LENS (index 1.499, 1.56, 1.61, uncoated ... bifocal and curve bifocal lens)4. PROGRESSIVE LENS. 1.70 asp white hi-index glass lens