Description
Lens Clock with hardened ball tips.
Measures the lens curve and determines the optical power of the lens.
Measuring range 0 – 20 dioptres
Double scale for refraction index n=1.523 and n=1.70
Lens Clock with hardened ball tips.
Measures the lens curve and determines the optical power of the lens.
Measuring range 0 – 20 dioptres
Double scale for refraction index n=1.523 and n=1.70