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All Products / Optics / Windows and Diffusers / Visible Windows / BOROFLOAT® Borosilicate Windows
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

10mm Diameter x 1.1mm Thickness, Uncoated, BOROFLOAT® Window

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TECHSPEC BOROFLOAT Borosilicate Windows

TECHSPEC BOROFLOAT Borosilicate Windows

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Stock #39-271 In Stock
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$24.38
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$24.38
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$19.35
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Specifications

General

Type:
Protective Window

Physical & Mechanical Properties

Bevel:
Protective as needed
Clear Aperture (%):
≥90
Clear Aperture CA (mm):
9.00
Diameter (mm):
10.00 ±0.5
Thickness (mm):
1.10 ±0.2
Edges:
Ground
Knoop Hardness (kg/mm2):
480
Poisson's Ratio:
0.2
Young's Modulus (GPa):
64

Optical Properties

Abbe Number (vd):
65.41
Coating:
Uncoated
Index of Refraction (nd):
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 (%):
90
Wavelength Range (nm):
350 - 2000

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
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

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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Reach 242:
Compliant
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Product Details

  • Low Coefficient of Thermal Expansion
  • Visible to Near Infrared Transmission
  • High Resistance to Thermal Shock

TECHSPEC® BOROFLOAT® Borosilicate Windows are ideal for high temperature and harsh environment applications. The windows have a low coefficient of thermal expansion of 3.25 (+20 to +300°C). TECHSPEC® BOROFLOAT® Borosilicate Windows feature visible to near infrared transmission. Unlike common borosilicate that is drawn flat, BOROFLOAT® is produced by a float technique that yields superior surface flatness — typically 4 - 6λ per inch. BOROFLOAT® is about three times more resistant to thermal shock than standard soda lime glass.

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Technical Information

Compatible Mounts