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Optical constants of SCHOTT - BK (Borosilicate crown)
P-BK7

Wavelength: µm
 (0.31 – 2.5)  
 

Other optical constants

n   k   logX   logY   eV

Dispersion formula [ i ]

$$n^2-1=\frac{1.18318503λ^2}{λ^2-0.00722141956}+\frac{0.0871756426λ^2}{λ^2-0.0268216805}+\frac{1.03133701λ^2}{λ^2-101.702362}$$

Comments

suitable for precision molding

Data

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

Additional information

n_is_absolute: false
λ_is_vacuum: false
n_d: 1.5164
V_d: 64.06
glass_code: 516641.243
glass_status: standard
density: 2.433 g/cm3
coefficient_of_thermal_expansion_1: 5.99e-06 K-1
coefficient_of_thermal_expansion_2: 7.32e-06 K-1
ΔP_gF: -0.0025
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.

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