Optical constants of SCHOTT - PK (Phosphate crown)
N-PK51
Wavelength:
µm
(0.3–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.15610775λ^2}{λ^2-0.00585597402}+\frac{0.153229344λ^2}{λ^2-0.0194072416}+\frac{0.785618966λ^2}{λ^2-140.537046}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 20.0 °C thermal_dispersion: - type: "Schott formula" coefficients: -1.98e-05 -6.06e-09 1.6e-11 4.16e-07 5.01e-10 0.134 nd: 1.52855 Vd: 76.98 glass_code: 529770.386 glass_status: standard density: 3.855 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 1.235e-05 K-1 - temperature_range: 20 300 °C coefficient: 1.412e-05 K-1 dPgF: 0.0258 climatic_resistance: 1.0 stain_resistance: 0.0 acid_resistance: 52.3 alkali_resistance: 3.3 phosphate_resistance: 4.3
Comments
suitable for precision molding. step 0.5 available
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets