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Optical constants of HOYA - TaF (Tantalum flint)
M-TAF401

Wavelength: µm
 (0.310 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.07279-0.01366385λ^{2}+0.02527346λ^{-2}+0.000612182λ^{-4}-1.147045\text{×}10^{-05}λ^{-6}+1.543\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 8.39412e-06 0.0 0.0 0.0 0.0 0.0
n_d: 1.77377
V_d: 47.17
glass_code: 774472
glass_status: standard
density: 4.62 g/cm3
coefficient_of_thermal_expansion_1: 6.1e-06 K-1
coefficient_of_thermal_expansion_2: 7.7e-06 K-1
ΔP_gF: -0.0078
climatic_resistance: 1.0
stain_resistance: 2.0
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.

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