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Optical constants of HOYA - TaFD (Dense tantalum flint)
TAFD55

Wavelength: µm
 (0.360 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.8317578-0.015266397λ^{2}+0.054573843λ^{-2}+0.0023109346λ^{-4}-4.4476201\text{×}10^{-05}λ^{-6}+1.6143887\text{×}10^{-05}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: -4.17e-07 8.97e-09 -4.73e-11 1.05e-06 8.82e-10 0.262
n_d: 2.00100
V_d: 29.13
glass_status: standard
density: 5.12 g/cm3
coefficient_of_thermal_expansion_1: 7.3e-06 K-1
coefficient_of_thermal_expansion_2: 9e-06 K-1
ΔP_gF: 0.0036
climatic_resistance: 1.0
stain_resistance: 1.0
acid_resistance: 1.0

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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