Optical constants of HIKARI - LaF (Lanthanum flint)
J-LAF3
Wavelength:
µm
(0.340 – 2.400)
Derived optical constants
n
k
logX
logY
eV
Dispersion formula
$$n^2=2.88297779-0.0115922463λ^{2}-0.000115749419λ^{4}+0.0224704179λ^{-2}+0.000475179381λ^{-4}-1.9647181\text{×}10^{-06}λ^{-6}+1.41116684\text{×}10^{-06}λ^{-8}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 2.6301e-06 1.0963e-08 -1.2155e-12 6.522e-07 7.8937e-10 0.20425
nd: 1.717000
Vd: 47.974566
density: 3.93 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 6.1e-06 K-1
dPgF: -0.0053
phosphate_resistance: 2.0
References
NIKON Zemax catalog 2017-11 (obtained from http://www.nikon.com)
See also HIKARI glass data sheets
Data
INFO
Hikari Glass Co., Ltd.
Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.External links
- Hikari Glass Co., Ltd. (in Japanese)
- Nikon