RefractiveIndex.INFO Refractive index database

Shelf

Book

Page

Optical constants of OHARA - Low Tg glasses for precision molding
L-LAH84

Wavelength: µm
 (0.34 – 2.4)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.83606127λ^2}{λ^2-0.00981969903}+\frac{0.341720032λ^2}{λ^2-0.0385636264}+\frac{1.35280173λ^2}{λ^2-107.04553}$$

Comments

Low Softening Temperature

Data

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

Additional information

n_is_absolute: false
λ_is_vacuum: false
temperature: 25.0 °C
coefficients_of_thermal_dispersion: 8.14e-06 9.68e-09 -3.1e-12 8.24e-07 8.84e-10 0.23
n_d: 1.808350
V_d: 40.548503
density: 4.62 g/cm3
coefficient_of_thermal_expansion_1: 6e-06 K-1
ΔP_gF: -0.007
climatic_resistance: 2.0
acid_resistance: 51.3
phosphate_resistance: 2.2

References

1) OHARA optical glass datasheets 2015-12-01
2) OHARA Zemax catalog 2015-12-01

More info - wiki

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.

External links