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Optical constants of SUMITA - BaSF (Barium dense flint)
K-BaSF5

Wavelength: µm
 (0.340 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.5165762-0.01183779λ^{2}+0.017631594λ^{-2}+0.00095834052λ^{-4}-6.7623905\text{×}10^{-05}λ^{-6}+6.2543393\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -1.33e-06 1.61e-08 -2.3e-10 5.78e-07 6.96e-10 0.262
nd: 1.60323
Vd: 42.5
glass_code: 603425
density: 2.71 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.9e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.02e-05 K-1
dPgF: 0.0005
climatic_resistance: 2.0
acid_resistance: 3.0

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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