RefractiveIndex.INFO

Refractive index database

Shelf

Book

Page

Optical constants of HOYA - NbFD (Dense niobium flint)
M-NBFD130

Wavelength: µm
 (0.340 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.173794-0.01498658λ^{2}+0.02906741λ^{-2}+0.001204829λ^{-4}-5.355158\text{×}10^{-05}λ^{-6}+5.27135\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 1.03293e-05 0.0 0.0 0.0 0.0 0.0
nd: 1.80610
Vd: 40.73
glass_code: 806407
glass_status: standard
density: 4.56 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.8e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.4e-06 K-1
dPgF: -0.0056
climatic_resistance: 1.0
stain_resistance: 3.0
acid_resistance: 3.0

Comments

Glass for molded optics lens

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.

External links


Glass

External links