eo_logo
 
Product added to cart
TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

BOROFLOAT® Borosilicate Windows

See More by SCHOTT Optical Components
TECHSPEC BOROFLOAT Borosilicate Windows

TECHSPEC BOROFLOAT Borosilicate Windows

×
  • 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.

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

Common Specifications

Bevel:
Protective as needed
Clear Aperture (%):
≥90
Knoop Hardness (kg/mm2):
480
Poisson's Ratio:
0.2
Young's Modulus (GPa):
64
Abbe Number (vd):
65.41
Index of Refraction (nd):
1.472
Substrate:
Surface Flatness (P-V):
4 - 6λ
Surface Quality:
80-50
Coefficient of Thermal Expansion CTE (10-6/°C):
3.25 (+20 to +300°C)
Density (g/cm3):
2.23
Transformation Temperature (°C):
525

Products

Dia. (mm)  Dimensions (mm)   Thickness (mm)   Coating   Compare  Stock Number  Price Buy
5.00 - 1.10 Uncoated
5.00 - 1.10 MgF2 (400-700nm)
5.00 - 1.75 Uncoated
5.00 - 1.75 MgF2 (400-700nm)
5.00 - 1.75 NIR (700-1150nm)
10.00 - 1.10 Uncoated
10.00 - 1.10 MgF2 (400-700nm)
10.00 - 1.75 Uncoated
10.00 - 1.75 MgF2 (400-700nm)
10.00 - 1.75 NIR (700-1150nm)
- 10.00 x 10.00 1.10 Uncoated
- 10.00 x 10.00 1.10 MgF2 (400-700nm)
- 10.00 x 10.00 1.75 Uncoated
- 10.00 x 10.00 1.75 MgF2 (400-700nm)
- 10.00 x 10.00 1.75 NIR (700-1150nm)
12.50 - 1.10 Uncoated
12.50 - 1.10 MgF2 (400-700nm)
12.50 - 1.75 Uncoated
12.50 - 1.75 MgF2 (400-700nm)
12.50 - 1.75 NIR (700-1150nm)
15.00 - 1.10 Uncoated
15.00 - 1.10 MgF2 (400-700nm)
15.00 - 1.75 Uncoated
15.00 - 1.75 MgF2 (400-700nm)
15.00 - 1.75 NIR (700-1150nm)
20.00 - 1.10 Uncoated
20.00 - 1.10 MgF2 (400-700nm)
20.00 - 3.30 Uncoated
20.00 - 3.30 MgF2 (400-700nm)
20.00 - 3.30 NIR (700-1150nm)
25.00 - 1.10 Uncoated
25.00 - 1.10 MgF2 (400-700nm)
25.00 - 3.30 Uncoated
25.00 - 3.30 MgF2 (400-700nm)
25.00 - 3.30 NIR (700-1150nm)
- 25.00 x 25.00 1.10 Uncoated
- 25.00 x 25.00 1.10 MgF2 (400-700nm)
- 25.00 x 25.00 3.30 Uncoated
- 25.00 x 25.00 3.30 MgF2 (400-700nm)
- 25.00 x 25.00 3.30 NIR (700-1150nm)
30.00 - 1.10 Uncoated
30.00 - 1.10 MgF2 (400-700nm)
30.00 - 3.30 Uncoated
30.00 - 3.30 MgF2 (400-700nm)
30.00 - 3.30 NIR (700-1150nm)
40.00 - 1.10 MgF2 (400-700nm)
40.00 - 3.30 MgF2 (400-700nm)
40.00 - 1.10 Uncoated
40.00 - 3.30 Uncoated
50.00 - 1.10 Uncoated
50.00 - 1.10 MgF2 (400-700nm)
50.00 - 3.30 Uncoated
50.00 - 3.30 MgF2 (400-700nm)
50.00 - 3.30 NIR (700-1150nm)
- 50.00 x 50.00 1.10 Uncoated
- 50.00 x 50.00 1.10 MgF2 (400-700nm)
- 50.00 x 50.00 3.30 Uncoated
- 50.00 x 50.00 3.30 MgF2 (400-700nm)
- 50.00 x 50.00 3.30 NIR (700-1150nm)
60.00 - 3.30 Uncoated
75.00 - 3.30 Uncoated
75.00 - 6.50 Uncoated
- 75.00 x 75.00 6.50 NIR (700-1150nm)
100.00 - 3.30 Uncoated
100.00 - 6.50 Uncoated
- 100.00 x 100.00 6.50 NIR (700-1150nm)
125.00 - 6.50 Uncoated
150.00 - 6.50 Uncoated
200.00 - 6.50 Uncoated
Didn't find your exact size? Get an immediate quote for your specified size here.

Technical Information

Resources

Filter

Anti-Reflection (AR) Coatings

Anti-reflection (AR) coatings are applied to optical components to increase throughput and reduce hazards caused by back-reflections.

View Now

An Introduction to Optical Coatings

Optical coatings are used to influence the transmission, reflection, or polarization properties of an optical component.

View Now

Beam Displacement Calculator

Understanding Optical Windows

Determine how to select an optical window based on its material transmission, thermal and mechanical properties, and other specifications at Edmund Optics.

View Now

Optical Windows Review

Optical Windows provide protection between an optical system or sensitive electronics and an outside environment.

View Now

I need a window for imaging underwater. The water is filtered and at room temperature with a very small amount of detergent in it. It is flowing at low speed. Will a MgF2 coated window survive this for a few years?

Optical Glass

Choosing the right optical glass is important. Find out factors and properties on how to select the right optical glass at Edmund Optics.

View Now

Surface Accuracy

BBAR Coating

Understanding Surface Quality Specifications

The surface quality of optical components the scattering off of its surface, which is especially important in laser optics applications.

View Now

Removing Protective Plastic Coating

A protective plastic coating protects a variety of our flat optics, such as optical windows, optical mirrors, and beamsplitters, from scratches during shipping.

View Now

Bevel

Parallelism

Seamed Edge

Anti-Reflection (AR) Coating

Introduction to Basic Ray Optics

An understanding of refraction and basic ray optics is a critical foundation for understanding more complicated optical concepts and technologies.

View Now

Surface Flatness

Transmission

How do I clean my optics?

Clear Aperture (CA)

Edmund Optics Global Manufacturing Facilities

Edmund Optics® (EO) manufactures millions of precision optical components and subassemblies every year in our 5 global manufacturing facilities.

View Now

Metrology at Edmund Optics: Measuring as a Key Component of Manufacturing

Learn about the metrology that Edmund Optics® uses to guarantee the quality of all optical components and assemblies.

View Now

Surface Quality

 
Sales & Expert Advice
1-800-363-1992
or view regional numbers
Easy-to-Use
QUOTE TOOL
enter stock numbers to begin