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Optical constants of SCHOTT - SF (Dense flint)
N-SF4

Wavelength: µm
 (0.365 – 2.5)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.67780282λ^2}{λ^2-0.012679345}+\frac{0.282849893λ^2}{λ^2-0.0602038419}+\frac{1.63539276λ^2}{λ^2-145.760496}$$

Data

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

Additional information

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: -4.88e-06 6.57e-09 -2.72e-11 9.67e-07 1.48e-09 0.282
n_d: 1.75513
V_d: 27.38
glass_code: 755274.315
glass_status: standard
density: 3.145 g/cm3
coefficient_of_thermal_expansion_1: 9.45e-06 K-1
coefficient_of_thermal_expansion_2: 1.087e-05 K-1
ΔP_gF: 0.0118
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 1.3
alkali_resistance: 1.0
phosphate_resistance: 1.0

References

1) SCHOTT optical glass data sheets 2015-07-22
2) SCHOTT Zemax catalog 2015-07-22

More info - wiki

SCHOTT AG is a German glass manufacturer. SCHOTT also publishes a glass catalog (SCHOTT Optical Glass Datasheets), which is a standard reference for the properties of many optical glasses.

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