RefractiveIndex.INFO

Refractive index database

Shelf

Book

Page

Optical constants of HOYA - FD (Dense flint)
E-FD8

Wavelength: µm
 (0.360 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.7617586-0.011254039λ^{2}+0.028221737λ^{-2}+0.0017540315λ^{-4}-0.00012127053λ^{-6}+1.5522384\text{×}10^{-05}λ^{-8}$$

Conditions & Spec sheet

n_absolute: false
λ_vacuum: false
temperature: 20.0 °C
thermal_dispersion:
  - type: "Schott formula"
    coefficients: -1.08706e-06 0.0 0.0 0.0 0.0 0.0
n_d: 1.68893
V_d: 31.16
glass_code: 689312
density: 2.97 g/cm3
thermal_expansion:
  - temperature_range: -30 70 °C
    coefficient: 9.3e-06 K-1
  - temperature_range: 20 300 °C
    coefficient: 1.12e-05 K-1
ΔP_gF: 0.0067
climatic_resistance: 1.0
stain_resistance: 1.0
acid_resistance: 1.0

Comments

General 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.

External links


Glass

External links