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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

15mm Diameter x 1.75mm Thickness, MgF2 Coated, BOROFLOAT® Window

TECHSPEC BOROFLOAT Borosilicate Windows for high temperature harsh environments are available at Edmund Optics! ✓ Buy Now!

TECHSPEC BOROFLOAT Borosilicate Windows

Stock #83-373
€23.00
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Qty 1-5
€23.00
Qty 6
€18.40
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Abbe Number (vd):
65.41
Bevel:
Protective as needed
Clear Aperture (%):
≥90
Diameter (mm):
15.00 ±0.5
Thickness (mm):
1.75
Coating:
MgF2 (400-700nm)
Coating Specification:
Rabs ≤2.5% @ 550nm
Coefficient of Thermal Expansion CTE (10-6/°C):
3.25
Density (g/cm3):
2.2
Edges:
Ground Edges
Index of Refraction nd:
1.472
Operating Temperature (°C):
1 hour @ 500; >100 hours @ 450
Poisson's Ratio:
0.2
Stress-Optical Coefficient (mm2/N):
4 x 10-6
Substrate:
Surface Flatness:
4 - 6λ
Surface Quality:
80-50
Thickness Tolerance (mm):
±0.2
Transformation Temperature (°C):
525
Transmission (%):
≥95
Type:
Protective Window
Typical Energy Density Limit:
10 J/cm2 @ 532nm, 10ns
Wavelength Range (nm):
400 - 700
Young's Modulus (GPa):
64

Regulatory Compliance

RoHS 2015:
Reach 205:

Product Family Description

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

BOROFLOAT® Borosilicate Windows are ideal for high temperature and harsh environment applications. 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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