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Optical constants of SCHOTT - Inquiry glasses
BK7G18

Wavelength: µm
 (0.38 – 2.5)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.26538542λ^2}{λ^2-0.00813104078}+\frac{0.0144191073λ^2}{λ^2-0.0543303226}+\frac{1.00323028λ^2}{λ^2-102.821166}$$

Comments

inquiry glass

Data

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

Additional information

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 1.52e-06 1.37e-08 -1.26e-11 4.36e-07 4.17e-10 0.194
n_d: 1.51975
V_d: 63.58
glass_code: 520636.252
glass_status: special
density: 2.52 g/cm3
coefficient_of_thermal_expansion_1: 7e-06 K-1
coefficient_of_thermal_expansion_2: 8.22e-06 K-1
ΔP_gF: 0.0007
stain_resistance: 0.0
acid_resistance: 1.0
alkali_resistance: 2.0

References

SCHOTT Zemax catalog 2015-07-22

More info - wiki

SCHOTT AG is a German glass manufacturer. SCHOTT also publishes a glass catalog (SCHOTT Optical Glass Datasheets), which is a standard reference for the properties of many optical glasses.

External links