RefractiveIndex.INFO

Refractive index database


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Optical constants of HOYA - LaF (Lanthanum flint)
MP-LAF81

Wavelength: µm
 (0.330 – 1.550)  
 

Complex refractive index (n+ik)[ i ]


n   k   LogX   LogY   eV

Derived optical constants

Dispersion formula

$$n^2=2.9167886-0.012398199λ^{2}+0.026675237λ^{-2}+0.00065190504λ^{-4}+4.6956175\text{×}10^{-06}λ^{-6}+2.691054\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 1.72608e-06 0.0 0.0 0.0 0.0 0.0
nd: 1.73077
Vd: 40.50
glass_code: 731405
glass_status: special
density: 3.22 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 8.9e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.13e-05 K-1
dPgF: -0.004
climatic_resistance: 1.0
stain_resistance: 5.0
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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