Bevel:

Protective as needed

Clear Aperture (%):

85

Clear Aperture CA (mm):

53.97

Diameter (mm):

63.50 +0.00/-0.13

Thickness (mm):

6.00 ±0.13

Coating:

Uncoated

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

7.57

Density (g/cm³):

5.27

Edges:

Fine Ground

Index of Refraction n_d:

2.631

Knoop Hardness (kg/mm²):

120

Parallelism (arcmin):

<3

Poisson's Ratio:

0.28

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

Zinc Selenide (ZnSe)

Surface Flatness (P-V):

λ/20 @ 10.6μm

Surface Quality:

60-40

Type:

Protective Window

Wavelength Range (nm):

600 - 18000

Young's Modulus (GPa):

67.2

Model Number:

ZC-W-63-6

63.5mm Dia., 6mm Thick, Uncoated, ISP Optics Zinc Selenide (ZnSe) Window | ZC-W-63-6

Protect your investment.