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Optical constants of HOYA - TaF (Tantalum flint)
MC-TAF1

Wavelength: µm
 (0.280 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.070806-0.012276924λ^{2}+0.02456566λ^{-2}+0.00047436648λ^{-4}+5.432616\text{×}10^{-07}λ^{-6}+6.5976661\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 3.46184e-06 0.0 0.0 0.0 0.0 0.0
n_d: 1.77250
V_d: 49.47
glass_code: 773495
glass_status: special
density: 4.83 g/cm3
coefficient_of_thermal_expansion_1: 7.6e-06 K-1
coefficient_of_thermal_expansion_2: 9e-06 K-1
ΔP_gF: -0.0052
climatic_resistance: 1.0
stain_resistance: 1.0
acid_resistance: 3.0

Comments

Not in a position to accept new order because of discontinuation.

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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