Refractive index or Abbe number (vd or ve) can be measured at different wavelengths ranging from 450 to 1,100nm.
The DR-M2 digitally displays measurement result of refractive index or Abbe number...
Refractive index or Abbe number (vd or ve) can be measured at different wavelengths
ranging from 450 to 1,100nm ( For measurement at wavelengths ranging from 681 to 1,100nm, the Optional Near...