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Optical constants of SUMITA - SFLD
K-SFLD4

Wavelength: µm
 (0.360 – 2.000)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.9621759-0.011836005λ^{2}+0.037648353λ^{-2}+0.0015341601λ^{-4}-1.0776303\text{×}10^{-05}λ^{-6}+1.378924\text{×}10^{-05}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -2.91e-06 1.97e-08 -3.23e-10 8.95e-07 9.72e-10 0.291
nd: 1.75520
Vd: 27.5
glass_code: 755275
density: 3.19 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.6e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 9.1e-06 K-1
dPgF: 0.0131
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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