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Optical constants of HOYA - NbFD (Dense niobium flint)
NBFD13

Wavelength: µm
 (0.340 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.1729223-0.014248534λ^{2}+0.029168114λ^{-2}+0.001342876λ^{-4}-9.6178753\text{×}10^{-05}λ^{-6}+8.4042556\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 6.67424e-06 0.0 0.0 0.0 0.0 0.0
n_d: 1.80610
V_d: 40.73
glass_code: 806407
glass_status: standard
density: 4.38 g/cm3
coefficient_of_thermal_expansion_1: 5.7e-06 K-1
coefficient_of_thermal_expansion_2: 7.2e-06 K-1
ΔP_gF: -0.0078
climatic_resistance: 1.0
stain_resistance: 2.0
acid_resistance: 3.0

Comments

Recommended glass type

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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