RefractiveIndex.INFO

Refractive index database


Shelf

Book

Page

Optix.eXpert is our new website that aims at connecting optical professionals with employers looking to outsource optics related work. Sign up and fill out a short form to start offering your service!

Optical constants of HOYA - TaFD (Dense tantalum flint)
TAFD65

Wavelength: µm
 (0.36501 – 1.550)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula

$$n^2=4.0113202-0.017752009λ^{2}+0.05856933λ^{-2}+0.0043200932λ^{-4}-0.00031070842λ^{-6}+3.7485638\text{×}10^{-05}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -6.69e-07 9.68e-09 -3.75e-11 1.14e-06 1.22e-09 0.264
nd: 2.05090
Vd: 26.94
glass_status: standard
density: 5.27 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.3e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.9e-06 K-1
dPgF: 0.0055
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.

External links


Glass

External links