Measurement	Result
Diameters	65mm/70mm	64.8mm/69.6mm
Refractive index windage	1.502	1.503
Optical prec	0.25	0.07
Cutting ability	OK	OK
Scratchability Hs	2.5%	0.7%
Color dispel Date	57.6	56.2
UV Ability T SUVA	90%	11.9%
T SUVB	45%	0.5%

Choice of Tintable	Brown、Gray、Seven Color、Double color changing
Choice of appendant	AR、Hard、Hard and coating、UV、hertzian Waves