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Optical constants of HOYA - LaC (Lanthanum crown)
M-LAC130

Wavelength: µm
 (0.290 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.813412-0.01332448λ^{2}+0.01927865λ^{-2}+0.0004124452λ^{-4}-9.940432\text{×}10^{-06}λ^{-6}+9.622024\text{×}10^{-07}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: 3.06e-06 7.53e-09 -3.42e-11 7.88e-07 1.05e-09 4.45e-10
nd: 1.69350
Vd: 53.20
glass_code: 694532
glass_status: standard
density: 3.52 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 6.5e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 8.6e-06 K-1
dPgF: -0.0059
climatic_resistance: 1.0
stain_resistance: 4.0
acid_resistance: 4.0

Comments

Glass for molded optics lens

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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