Optical constants of SCHOTT - LLF (Very light flint)
LLF1
Wavelength:
µm
(0.31–2.5)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.21640125λ^2}{λ^2-0.00857807248}+\frac{0.13366454λ^2}{λ^2-0.0420143003}+\frac{0.883399468λ^2}{λ^2-107.59306}$$Conditions & Spec sheet
n_is_absolute: false
wavelength_is_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
- type: "Schott formula"
coefficients: 3.25e-07 1.74e-08 -6.12e-11 6.53e-07 2.58e-10 0.233
nd: 1.54814
Vd: 45.75
glass_code: 548458.294
glass_status: standard
density: 2.94 g/cm3
thermal_expansion:
- temperature_range: -30 70 °C
coefficient: 8.1e-06 K-1
- temperature_range: 20 300 °C
coefficient: 9.2e-06 K-1
dPgF: -0.0009
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 1.0
alkali_resistance: 2.0
phosphate_resistance: 1.0
Comments
lead containing glass type
References
SCHOTT Zemax catalog 2017-01-20b (obtained from http://www.schott.com)
See also SCHOTT glass data sheets