Optical constants of SCHOTT - SF (Dense flint)
SF56A
Wavelength:
µm
(0.37–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.70579259λ^2}{λ^2-0.0133874699}+\frac{0.344223052λ^2}{λ^2-0.0579561608}+\frac{1.09601828λ^2}{λ^2-121.616024}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 6.02e-06 1.7e-08 -2.61e-11 1.63e-06 1.59e-09 0.269
nd: 1.7847
Vd: 26.08
glass_code: 785261.492
glass_status: standard
density: 4.92 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.9e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.8e-06 K-1
dPgF: 0.0098
climatic_resistance: 1.0
stain_resistance: 1.0
acid_resistance: 3.2
alkali_resistance: 2.2
phosphate_resistance: 3.2
Comments
lead containing glass type
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets