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Optical constants of HOYA - BSC (Borosilicate crown)
BSC7

Wavelength: µm
 (0.280 – 1.550)  
 

Derived optical constants

n   k   logX   logY   eV

Dispersion formula

$$n^2=2.2702566-0.0091988101λ^{2}+0.011609706λ^{-2}-7.6123911\text{×}10^{-05}λ^{-4}+2.8558727\text{×}10^{-05}λ^{-6}-1.2566486\text{×}10^{-06}λ^{-8}$$

Conditions & Spec sheet

n_is_absolute: false
λ_is_vacuum: false
temperature: 20.0 °C
coefficients_of_thermal_dispersion: 3.25479e-06 0.0 0.0 0.0 0.0 0.0
n_d: 1.51680
V_d: 64.20
glass_code: 517642
density: 2.52 g/cm3
coefficient_of_thermal_expansion_1: 7.6e-06 K-1
coefficient_of_thermal_expansion_2: 9.3e-06 K-1
ΔP_gF: 0.0016
climatic_resistance: 3.0
stain_resistance: 1.0
acid_resistance: 1.0

Comments

General glass Type

References

HOYA Zemax catalog 2017-04-01 (obtained from http://www.hoya-opticalworld.com)

Data

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

INFO

BK7 optical glass

BK7 is a very popular crown glass. Most glass makers produce this glass under slightly different names.

Analogs of BK7 glass produced by different makers

Maker Glass
SCHOTT N-BK7
OHARA S-BSL7
HIKARI J-BK7A
CDGM H-K9L
HOYA BSC7
SUMITA K-BK7
LZOS K8

External links


HOYA Corporation

Hoya Corporation is a Japanese company manufacturing optical products.

External links


Glass

External links