Resistance to Temperature Difference (K):

Short Term, 1 hr: 110K
1 - 100 hrs: 90K
Long Term, >100 hrs: 80K

Thermal Shock (K):

Up to 4mm Thick: 175K
4 - 6mm Thick: 160K
6 - 15mm Thick: 150K

Product Details

Type:

Protective Window

Physical & Mechanical Properties

Bevel:

Protective as needed

Clear Aperture (%):

≥90

Clear Aperture CA (mm):

27.00

Diameter (mm):

30.00 ±0.5

Thickness (mm):

3.30 ±0.2

Edges:

Ground

Knoop Hardness (kg/mm²):

480

Poisson's Ratio:

0.2

Young's Modulus (GPa):

64

Optical Properties

Abbe Number (v_d):

65.41

Coating:

NIR (700-1150nm)

Coating Specification:

R_avg <1.0% @ 700 - 1150nm

Index of Refraction n_d:

1.472

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

BOROFLOAT^®

Surface Flatness (P-V):

4 - 6λ

Surface Quality:

80-50

Transmission (%):

≥97

Wavelength Range (nm):

700 - 1150

Material Properties

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

3.25 (+20 to +300°C)

Density (g/cm³):

2.23

Transformation Temperature (°C):

525

Environmental & Durability Factors

Operating Temperature (°C):

1 hour @ 500; >100 hours @ 450

30mm Diameter x 3.3mm Thickness, NIR Coated, BOROFLOAT® Window

Product Details

Physical & Mechanical Properties

Optical Properties

Material Properties

Environmental & Durability Factors

Regulatory Compliance

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