・ Refraction index Nd=1.523.    

・ Abbe value 56.    

・ Density 2.41 g/cm3.    

・ Used well throughout the year, both indoor and outdoor, in all climates and for many different activities.    

・ High original transmittance, high rate of darkening in the sun.    

・ AR multi-coating and AR+EMI coatings are available in greenish and bluish colors.    

・ Absorbing UV-ray and providing effective protection to the eyes.