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Optical constants of SCHOTT - BK (Borosilicate crown)
SCHOTT N-BK7®

Wavelength: µm
 (0.3 – 2.5)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.03961212λ^2}{λ^2-0.00600069867}+\frac{0.231792344λ^2}{λ^2-0.0200179144}+\frac{1.01046945λ^2}{λ^2-103.560653}$$

Comments

step 0.5 available

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: 1.86e-06 1.31e-08 -1.37e-11 4.34e-07 6.27e-10 0.17
n_d: 1.5168
V_d: 64.17
glass_code: 517642.251
glass_status: standard
density: 2.51 g/cm3
coefficient_of_thermal_expansion_1: 7.1e-06 K-1
coefficient_of_thermal_expansion_2: 8.3e-06 K-1
ΔP_gF: -0.0009
climatic_resistance: 1.0
stain_resistance: 0.0
acid_resistance: 1.0
alkali_resistance: 2.3
phosphate_resistance: 2.3

References

1) SCHOTT optical glass data sheets 2015-07-22
2) 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