Abbe Number (v_d):

33.64

Bevel:

Protective as needed

Clear Aperture (%):

85

Clear Aperture CA (mm):

21.59

Diameter (mm):

25.40 +0.00/-0.13

Thickness (mm):

4.00 ±0.13

Coating:

Uncoated

Coefficient of Thermal Expansion CTE (10^-6/°C):

43

Density (g/cm³):

2.753

Edges:

Fine Ground

Index of Refraction n_d:

1.56

Knoop Hardness (kg/mm²):

7

Parallelism (arcmin):

<3

Poisson's Ratio:

0.203

Solubility, in 100g of H₂O @ 273K (g):

53.48

Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More

Potassium Bromide (KBr)

Surface Flatness (P-V):

λ/10 @ 10.6μ

Surface Quality:

60-40

Type:

Protective Window

Wavelength Range (nm):

250 - 26000

Young's Modulus (GPa):

26.8

Model Number:

KB-W-25-4

25.4mm Dia., 4mm Thick, Uncoated, ISP Optics Potassium Bromide (KBr) Window | KB-W-25-4

Regulatory Compliance

產品系列說明

25.4mm Dia., 4mm Thick, Uncoated, ISP Optics Potassium Bromide (KBr) Window | KB-W-25-4

Protect your investment.

Regulatory Compliance

產品系列說明