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Optical constants of OHARA - i-Line glasses
PBL26Y

Wavelength: µm
 (0.31 – 2.4)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.29471773λ^2}{λ^2-0.00986579479}+\frac{0.108880981λ^2}{λ^2-0.0477568828}+\frac{0.220322964λ^2}{λ^2-28.8509863}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 25.0 °C
coefficients_of_thermal_dispersion: -1.24e-06 1.52e-08 -3.95e-11 7.86e-07 7.36e-10 0.228
n_d: 1.567322
V_d: 42.855569
glass_code: 567428
density: 3.1 g/cm3
coefficient_of_thermal_expansion_1: 8.9e-06 K-1
coefficient_of_thermal_expansion_2: 1e-05 K-1
ΔP_gF: -0.0015
climatic_resistance: 1.0
acid_resistance: 1.0
phosphate_resistance: 2.0

Comments

Improved XMT at 365

References

1) OHARA i-line glass data
2) OHARA Zemax catalog 2015-12-01

Data

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

INFO

Ohara Group

Ohara Group is an international group of companies with headquarters in Japan and subsidiaries in Japan (Ohara, Inc.), United States (Ohara Corporation), and Germany (Ohara, GmbH). Ohara manufactures optical and electronic products and also offers measurement services, in particular measurement of refractive indices of solids and liquids.

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