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  General Conditions
  CR-39 Hard Resin Lens
  1.56 Middle Index Hard
  Resin Lens
  1.56 Photochromic Hard
  Resin Lens
  1.59 Polycarbonate Lens
  1.61 Hi - Index Hard
  Resin Lens
  Mineral White 1.523
  Optical Lens
  Mineral 1.7/1.8/1.9
  Hi-index Lens
  Mineral Photochromic Lens
  Sunlens & polarized lens
 
  1.56 Photochromic Hard Resin Lens
 
 
Refraction index Nd=1.56.
Abbe value 38.
Density 1.16 g/cm3.
Can be used well throughout the year, in and out of doors, in all climates and for
many different activities.
High original transmittance, high rate of darkening in the sun.
High rate of fading out of the sun, thorough fading capability.
Grey and brown color available.
High scratch resistance, super-hard protection coating available.
HMC and HMC+EMI coating available.
Absorb UV-ray and provide effective protection for the eyes.
 
  Photo 156 - Dia65mm & Dia70mm (Grey & Brown)
  Photo 156 - Progressive & Bifocal (Grey & Brown)
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