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Optical constants of HOYA - FDS (Special dense flint)
FDS24

Wavelength: µm
 (0.36501 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=3.5126327-0.0153015λ^{2}+0.053936061λ^{-2}+0.0034949369λ^{-4}-0.00017950295λ^{-6}+3.4403181\text{×}10^{-05}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
wavelength_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -3.37e-06 7.78e-09 -2.33e-11 1.13e-06 1.32e-09 0.275
nd: 1.92119
Vd: 23.96
glass_code: 921240
glass_status: standard
density: 3.84 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 7.8e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 9.6e-06 K-1
dPgF: 0.0151
climatic_resistance: 1.0
stain_resistance: 1.0
acid_resistance: 1.0

Comments

Recommended glass type

References

HOYA Zemax catalog 2017-04-01 (obtained from http://www.hoya-opticalworld.com)

Data

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

INFO

HOYA Corporation

Hoya Corporation is a Japanese company manufacturing optical products.

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