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Optical constants of HIKARI - FK (Fluorite crown)
J-FKH1

Wavelength: µm
 (0.280 – 2.400)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.22016073-0.00500725473λ^{2}-3.55507111\text{×}10^{-05}λ^{4}+0.00842088796λ^{-2}+7.02327459\text{×}10^{-05}λ^{-4}+2.470079\text{×}10^{-06}λ^{-6}-6.50002003\text{×}10^{-08}λ^{-8}$$

Data

[Expressions for n]   [CSV - comma separated]   [TXT - tab separated]   [Full database record]

Additional information

n_is_absolute: false
λ_is_vacuum: false
temperature: 23.0 °C
n_d: 1.497820
V_d: 82.571305
density: 3.86 g/cm3
coefficient_of_thermal_expansion_1: 1.29e-05 K-1
ΔP_gF: 0.0327
phosphate_resistance: 4.0

References

1) HIKARI optical glass catalog 2015-04-01
2) HIKARI Zemax catalog

More info - wiki

Hikari Glass Co., Ltd. is a Japanese glass maker, a subsidiary of Nikon Corp.

External links

Latest optical glass catalog