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Optical constants of HOYA - LaF (Lanthanum flint)
LAF2
Wavelength:
µm
(0.320 – 1.550)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=2.9657374-0.0096571624λ^{2}+0.026024525λ^{-2}+0.00036684641λ^{-4}+2.8205551\text{×}10^{-05}λ^{-6}-1.3739929\text{×}10^{-07}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 2.21119e-06 0.0 0.0 0.0 0.0 0.0
nd: 1.74400
Vd: 44.90
glass_code: 744449
density: 4.39 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7.2e-06 K-1
- temperature_range: 20 300 °C
coefficient: 8.7e-06 K-1
dPgF: -0.0044
climatic_resistance: 1.0
stain_resistance: 2.0
acid_resistance: 3.0
Comments
General glass Type
References
HOYA Zemax catalog 2017-04-01 (obtained from http://www.hoya-opticalworld.com)
Data
INFO
HOYA Corporation
Hoya Corporation is a Japanese company manufacturing optical products.External links
- HOYA Corporation
- HOYA Group Optics DIvision
- HOYA Corporation USA Optics DIvision
- Hoya Corporation - Wikipedia