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Refractive index database


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Optical constants of SUMITA - SFLD
K-SFLD11

Wavelength: µm
 (0.370 – 2.000)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula

$$n^2=3.052913-0.012276955λ^{2}+0.041487837λ^{-2}+0.0019043764λ^{-4}-3.1653157\text{×}10^{-05}λ^{-6}+1.7320425\text{×}10^{-05}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -5.51e-06 1.82e-08 -3.64e-10 1.08e-06 1.52e-09 0.28
nd: 1.78472
Vd: 25.9
glass_code: 785259
density: 3.3 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 9.3e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.05e-05 K-1
dPgF: 0.0144
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

SF11 optical glass

SF11 is a popular optical glass. Most glass makers produce this or very similar glass under slightly different names.

SF11 and similar glasses produced by different makers

Maker Glass
Schott N-SF11
Hikari E-SF11
Sumita K-SFLD11
CDGM ZF13

SUMITA Optical Glass, Inc.

SUMITA Optical Glass, Inc. is a Japanese glass manufacturer

External links


Glass

External links