https://www.high-endrolex.com/1

  • Mendelstraße 11,
    D-48149 Münster
Optical and spectral properties
Transmission range
330‐2100
Refractive index @587,6 nm
nd = 1.51680
Refractive index @546,07 nm
ne = 1.51872
Reflection losses, % for two surfaces
8,3 @588 nm
Physical properties
Density in g/cm3
2,51 @20°C
Abbe Constant
nd = 64.17

ne = 63.93

Principal dispersion
nF ‐ nC = 0,008054

nF‘ ‐ nC‘ = 0,008110

Thermal conductivity in W/(m · K)
1,114
Thermal expansion in 1/K
7,1 · 10-6 (-30/+70°C)

8,3 · 10-6 (20/300°C)

Transformation temperature
557
Specific heat capacity, J/(kg/K)
858
Young's Modulus (E) in N/mm2
82·103
Poisson's ratio
0,206
Optical stress coefficient, mm2/N
2,77·10-6
Knoop Hardness , kg/mm2
610
Stain resistance class
0
Climatic resistance class
2
Acid resistance class
1
Alkali resistance class
2
Phosphate resistance class
2,3
Spectral properties
sample thickness: 10 mm