Photochromic lens(optical lens)

Photochromic lens Index=1.56, 1.61 Diameter: 65/70mm Power: 0.00 to +/-6.00/-2.00 Material: LG CHEMICAL Color: Grey and brown Real Index: 1.55 Abbe Value: 39 Specific Gravity: 1.15 UV: 380NM Darkening: 75% after 30 seconds 85% after 60 seconds Fading time: 10 minutes Transmittance: Gray 15% to 85% Brown 14% to 85% 1.56 Round top photochromic 70/28mm 1.56 Blend top photochromic 70/28mm 1.56 Flat top photochcomic 70/28mm 1.56 Progressive photochromic 70mm short corridor power: 0.00/+3.00/Add +1.00 to +3.00 color: brown and grey All above finished and semi-finished