1.56 Progressive Blue Block SHMC
Refractive Index:n(e)=1.550
Abbe Value:40
Specific Gravity:1.17
72/12MM Coating:HMC,EMI
Multi color:Green,blue
Refractive Index:n(e)=1.550
Abbe Value:40
Specific Gravity:1.17
72/12MM Coating:HMC,EMI
Multi color:Green,blue