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Optical constants of HOYA - LaC (Lanthanum crown)
LAC14

Wavelength: µm
 (0.280 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.8255229-0.013632902λ^{2}+0.019791402λ^{-2}+1.5032564\text{×}10^{-05}λ^{-4}+4.0761368\text{×}10^{-05}λ^{-6}-1.7527267\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 3.05e-06 1.07e-08 -2.21e-11 4.35e-07 4.49e-10 0.185
nd: 1.69680
Vd: 55.46
glass_code: 697555
glass_status: standard
density: 3.67 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 5.6e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 7.2e-06 K-1
dPgF: -0.0059
climatic_resistance: 1.0
acid_resistance: 4.0

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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