1.56 SF Photochromic Flat Top/Round top/Blended (Grey) Blue Block 70/28MM

Product Name: 1.553 Photochromic Lens
Material:Photochromic Oligomer
Refractive Index (25­°C):1.548
UV Cut Off:420
Abbe Value:41
Specific Gravity (20­°C):1.21

The anti blue light factor added in the lens effectively block harmful blue light.

● Long-lasting
● UV protect
● Blue cut
● Anti-Glare

Diameter(mm) NominalCurve Truecurve RadiusofCurvature SAG40(mm) SAG50(mm) BackCurve C.T.(mm) E.T.(mm)
70mm 2.00 2.35 225.17 0.88 1.39 4.23 9.20 11.10
70mm 4.00 4.12 128.66 1.56 2.45 4.23 7.60 7.50
70mm 6.00 6.03 87.90 2.30 3.63 6.43 7.50 7.60
70mm 8.00 7.95 66.67 3.07 4.86 6.43 9.20 6.50

WHAT WE CAN DO FOR YOU

Lens Index Materials Surface Coating AR Coating Color Diameter Visual Effect Power Range Blue Block Parameter Logo Customize
1.499 Lens CR-39 Uncoated Green 55MM Single Vision -15.00~0.00/
0.00~6.00
UV360 Invisible Fog Logo
1.58 Trivex Lens Trivex Hard Coating Blue 60MM Bifocal +8.00~0.00/
0.00~-6.00
UV380 Pocket Customize
1.59 Polycarbonate PC AR Coating Purple 65MM Progressive UV400
1.56 Lens KOC/NK Anti Reflection Burgundy 70MM Photochromic UV410
1.61 Lens MR-8/Acrylic/Resin Anti Radiation 72MM Polarized UV420
1.67 Lens MR-7/MR-10 Super Hydrophobic 75MM Sunglasses
1.74 Lens MR-174 EMI Coating 80MM
Anti Fog
Scroll to Top