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Optical constants of HIKARI - LaSF (Lanthanum dense flint)
J-LASF021HS
Wavelength:
µm
(0.360 – 2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2=3.30477446-0.0145925795λ^{2}+0.0359916632λ^{-2}+0.00349591839λ^{-4}-0.000743189237λ^{-6}+0.000155265866λ^{-8}-1.52961037\text{×}10^{-05}λ^{-10}+6.59677491\text{×}10^{-07}λ^{-12}$$Conditions & Spec sheet
n_absolute: false
wavelength_vacuum: false
temperature: 23.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 1.3032e-07 1.0819e-08 2.8653e-12 9.0546e-07 1.2613e-09 0.26464
nd: 1.850260
Vd: 32.352867
density: 4.37 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 7e-06 K-1
dPgF: 0.0046
phosphate_resistance: 1.0
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