eo_logo
  • Country/Region
  • cart   
 
See all 44 Products in Family
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

25mm Diameter x 3.3mm Thickness, Uncoated, BOROFLOAT® Window

See More by SCHOTT Optical Components
TECHSPEC BOROFLOAT Borosilicate Windows

TECHSPEC BOROFLOAT Borosilicate Windows

×
Stock #43-892 Other Coating Options
×
- +
$23.00
Qty 1-5
$23.00
Qty 6+
$18.00
Volume Pricing
Request Quote
Get Product Downloads

Specifications

Abbe Number (vd):
65.41
Bevel:
Protective as needed
Clear Aperture (%):
≥90
Clear Aperture CA (mm):
22.50
Diameter (mm):
25.00 ±0.5
Thickness (mm):
3.30 ±0.2
Coating:
Uncoated
Coefficient of Thermal Expansion CTE (10-6/°C):
3.25 (+20 to +300°C)
Density (g/cm3):
2.23
Edges:
Ground
Index of Refraction nd:
1.472
Knoop Hardness (kg/mm2):
480
Operating Temperature (°C):
1 hour @ 500; >100 hours @ 450
Poisson's Ratio:
0.2
Resistance to Temperature Difference (K):
Short Term, 1 hr: 110K
1 - 100 hrs: 90K
Long Term, >100 hrs: 80K
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Flatness:
4 - 6λ
Surface Quality:
80-50
Thermal Shock (K):
Up to 4mm Thick: 175K
4 - 6mm Thick: 160K
6 - 15mm Thick: 150K
Transformation Temperature (°C):
525
Transmission (%):
90
Type:
Protective Window
Wavelength Range (nm):
350 - 2000
Young's Modulus (GPa):
64

Regulatory Compliance

RoHS 2015:
Reach 224:

Learn More

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.

Can’t find what you need? Get a quick custom quote.

Technical Information

Compatible Mounts

Title  Type Compare Stock Number  Price Buy
25.0/25.4mm Optic Dia., SM1 Thin Mount, M4 Fixed #13-787 $17.50
Qty 5+ $16.60 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., SM1 Thin Mount, 8-32 Fixed #13-788 $17.50
Qty 5+ $16.60 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., E-Series Kinematic Mount Adjustable - Tip-Tilt #15-866 $39.00
Qty 10+ $37.00 Request Quote
  • In Stock
    ×
25.0mm Optic Dia., Optic Mount Fixed #64-560 $42.50
Qty 10+ $38.20 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., SM1 Thin Mount, M4, Quick Start Optical Mounts Fixed #17-536 $52.50 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., SM1 Thin Mount, 8-32, Quick Start Optical Mounts Fixed #17-537 $52.50 Request Quote
  • In Stock
    ×
2.0 - 35.0mm Optic Dia., Three-Screw Adjustable Ring Mount Fixed #03-668 $56.00
Qty 10+ $49.50 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., Side Flange Direct Mount Fixed #36-414 $59.50 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., L-Slot Direct Mount Fixed #36-410 $59.50 Request Quote
  • In Stock
    ×
9.5 - 73.0mm Optic Dia., Three-Screw Adjustable Ring Mount Fixed #36-605 $70.00
Qty 10+ $62.00 Request Quote
  • In Stock
    ×
25/25.4mm Diameter, E-Series Kinematic Mount, Quick Start Optical Mounts Adjustable - Tip-Tilt #17-521 $74.00 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., Kinematic Mount, 2-Screws Adjustable - Tip-Tilt #58-851 $82.00
Qty 5+ $73.80 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., L-Slot and Rotation Direct Mount Adjustable - Rotary #36-411 $86.00 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., Kinematic Mount, 3-Screws Adjustable - Tip-Tilt #58-854 $90.00
Qty 5+ $81.00 Request Quote
  • In Stock
    ×
5.0 - 25.0mm Optic Height, Metric Bar-Type Optic Holder Fixed #55-529 $90.00
Qty 10+ $81.00 Request Quote
7.0 - 40.0 Optic Height, English Bar-Type Optic Holder Fixed #03-676 $90.00
Qty 10+ $81.00 Request Quote
  • In Stock
    ×
19.5 - 108.0mm Optic Dia., Three-Screw Adjustable Ring Mount Fixed #03-670 $96.00
Qty 10+ $85.00 Request Quote
  • In Stock
    ×
7.0 - 67.0 Optic Height, English Bar-Type Optic Holder Fixed #03-669 $98.00
Qty 10+ $88.00 Request Quote
  • In Stock
    ×
10.0 - 60.0mm Optic Height, Metric Bar-Type Optic Holder Fixed #55-530 $98.00
Qty 10+ $88.00 Request Quote
  • In Stock
    ×
8.0 - 118.0 Optic Height, English Bar-Type Optic Holder Fixed #03-666 $101.00
Qty 10+ $91.00 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., Optical Cell Assembly Fixed #36-461 $106.00
Qty 10+ $94.00 Request Quote
  • In Stock
    ×
25/25.4mm Dia., Kinematic Mount, 3-Screws, Quick Start Optical Mounts Adjustable - Tip-Tilt #17-523 $125.00 Request Quote
  • In Stock
    ×
2"/50.8mm Diameter, Bar Type Lens / Filter Holder, Quick Start Optical Mounts Fixed #17-530 $135.00 Request Quote
  • In Stock
    ×
4.0 - 36.0mm Optic Dia., Self-Centering Jaw Clamp Fixed #16-077 $136.00
Qty 5+ $120.00 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., X-Y Translating Optic Mount Adjustable - Linear (XY) #62-956 $245.00
Qty 5+ $233.00 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Diameter, X-Y Translating Quick Start Optical Mounts Adjustable - Linear (XY) #17-513 $282.80 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., Kinematic Mirror Mount Adjustable - Tip-Tilt #55-003 $299.00
Qty 5+ $284.00 Request Quote
25.0/25.4mm Optic Dia., Kinematic Mirror Mount with Micrometer Adjustable - Tip-Tilt #55-456 $320.00
Qty 5+ $304.00 Request Quote
  • In Stock
    ×
5.0 - 100.0mm Optic Dia., Self-Centering Jaw Clamp Fixed #16-078 $356.00
Qty 5+ $314.00 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., Kinematic Mirror Mount with Micrometer, Quick Start Optical Mounts Adjustable - Tip-Tilt #17-519 $362.90 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., Precision Gimbal Mount Adjustable - Gimbal #54-999 $409.00
Qty 5+ $364.00 Request Quote
  • In Stock
    ×
25/25.4mm ID, Precision Gimbal Mount, Quick Start Optical Mounts Adjustable - Gimbal #17-517 $455.40 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., X-Y-Z Translating Optic Mount Adjustable - Linear (XYZ) #62-959 $481.00
Qty 5+ $433.00 Request Quote
  • In Stock
    ×
25.0/25.4mm Optic Dia., 5 Axes Optical Mount Adjustable - Linear (XYZ) & Tip-Tilt #13-776 $670.00
Qty 5+ $637.00 Request Quote
  • In Stock
    ×
×