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Optical constants of HOYA - LaC (Lanthanum crown)
MP-LAC14-80

Wavelength: µm
 (0.280 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.8306733-0.014855863λ^{2}+0.018103472λ^{-2}+0.00053539971λ^{-4}-3.1929778\text{×}10^{-05}λ^{-6}+2.0340983\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 4.13456e-06 0.0 0.0 0.0 0.0 0.0
n_d: 1.69760
V_d: 55.51
glass_code: 698555
glass_status: standard
density: 3.7 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.5e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8e-06 K-1
ΔP_gF: -0.0059
climatic_resistance: 1.0
stain_resistance: 5.0
acid_resistance: 4.0

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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