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

Wavelength: µm
 (0.320–1.550)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

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
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 8.39412e-06 0.0 0.0 0.0 0.0 0.0
nd: 1.77377
Vd: 47.17
glass_code: 774472
glass_status: standard
density: 4.62 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.1e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.7e-06 K-1
dPgF: -0.0078
climatic_resistance: 1.0
stain_resistance: 2.0
acid_resistance: 3.0

Comments

Preforms for Precision molding

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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