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Optical constants of HOYA - TaFD (Dense tantalum flint)
TAFD45

Wavelength: µm
 (0.360 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.672962-0.0151805λ^{2}+0.0457187λ^{-2}+0.002186221λ^{-4}-9.93742\text{×}10^{-05}λ^{-6}+1.490466\text{×}10^{-05}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 8.36e-07 9.08e-09 -4.59e-11 9.61e-07 1.39e-09 0.246
nd: 1.95375
Vd: 32.32
glass_code: 954323
glass_status: standard
density: 5.1 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.5e-06 K-1
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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