RefractiveIndex.INFO

Refractive index database


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Optical constants of HOYA - NbFD (Dense niobium flint)
MC-NBFD135

Wavelength: µm
 (0.340 – 1.550)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula

$$n^2=3.1819698-0.014926522λ^{2}+0.028987649λ^{-2}+0.0012223654λ^{-4}-5.2916688\text{×}10^{-05}λ^{-6}+4.7807227\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 9.98837e-06 0.0 0.0 0.0 0.0 0.0
nd: 1.80834
Vd: 40.92
glass_code: 808409
glass_status: standard
density: 4.67 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.2e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8e-06 K-1
dPgF: -0.0061
climatic_resistance: 1.0
stain_resistance: 3.0
acid_resistance: 3.0

Comments

Preforms for Precision molding

References

HOYA Zemax catalog 2017-04-01 (obtained from http://www.hoya-opticalworld.com)

Data

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

INFO

HOYA Corporation

Hoya Corporation is a Japanese company manufacturing optical products.

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