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Optical constants of HOYA - FEL (Extra light flint)
E-FEL2

Wavelength: µm
 (0.340 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.3317983-0.0097042192λ^{2}+0.014032761λ^{-2}+0.00064822896λ^{-4}-4.0813761\text{×}10^{-05}λ^{-6}+3.9064873\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
n_d: 1.54072
V_d: 47.20
glass_code: 541472
density: 2.53 g/cm3
coefficient_of_thermal_expansion_1: 8.2e-06 K-1
coefficient_of_thermal_expansion_2: 1e-05 K-1
ΔP_gF: 0.0044
climatic_resistance: 1.0
stain_resistance: 1.0
acid_resistance: 1.0

Comments

General 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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