RefractiveIndex.INFO

Refractive index database

Shelf

Book

Page

Optical constants of HOYA - NbFD (Dense niobium flint)
M-NBFD10

Wavelength: µm
 (0.350 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.264623-0.01581977λ^{2}+0.03225894λ^{-2}+0.001709312λ^{-4}-0.0001081957λ^{-6}+1.058323\text{×}10^{-05}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 8.48661e-06 0.0 0.0 0.0 0.0 0.0
n_d: 1.83441
V_d: 37.28
glass_code: 834373
glass_status: standard
density: 4.39 g/cm3
coefficient_of_thermal_expansion_1: 6.1e-06 K-1
coefficient_of_thermal_expansion_2: 7.7e-06 K-1
ΔP_gF: -0.004
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