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Optical constants of SUMITA - SFLD
K-SFLD8

Wavelength: µm
 (0.360 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.7609221-0.011601354λ^{2}+0.029309701λ^{-2}+0.0012957192λ^{-4}-3.6971081\text{×}10^{-05}λ^{-6}+9.8723481\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -9.37e-07 1.62e-08 -1.83e-10 7.05e-07 1.05e-09 0.299
nd: 1.68893
Vd: 31.1
glass_code: 689311
density: 2.94 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 9.7e-06 K-1
dPgF: 0.0062
climatic_resistance: 1.0
acid_resistance: 1.0

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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