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Optical constants of SUMITA - SKF
K-SKF6(M)

Wavelength: µm
 (0.320 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.2407767-0.008821111λ^{2}+0.011852627λ^{-2}+0.00046630703λ^{-4}-2.7146793\text{×}10^{-05}λ^{-6}+2.5187584\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -9.67e-06 1.6e-08 -1.08e-10 4.97e-07 6.44e-11 0.231
nd: 1.50847
Vd: 52.6
glass_code: 512521
density: 2.51 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 9.5e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 1e-05 K-1
dPgF: 0.0043
climatic_resistance: 1.0
acid_resistance: 4.0

References

SUMITA Zemax catalog 2017-02-02 (obtained from http://www.sumita-opt.co.jp)
See also SUMITA optical glass data book

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

INFO

SUMITA Optical Glass, Inc.

SUMITA Optical Glass, Inc. is a Japanese glass manufacturer

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