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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

25mm Square Uncoated, B270 Window

See More by SCHOTT Optical Components
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Stock #48-538 Contact Us
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€36,75
Qty 1-5
€36,75
Qty 6+
€29,50
Volume Pricing
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Prices shown are exclusive of VAT/local taxes
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Specifications

General

Type:
Protective Window

Physical & Mechanical Properties

Bevel:
Protective as needed
Clear Aperture CA (mm):
22.50 x 22.50
Dimensions (mm):
25.00 x 25.00
Thickness (mm):
2.00
Edges:
Fine Ground
Knoop Hardness (kg/mm2):
500
Poisson's Ratio:
0.22
Young's Modulus (GPa):
71.5
Length (mm):
25.00
Width (mm):
25.00

Optical Properties

Abbe Number (vd):
58.3
Coating:
Uncoated
Index of Refraction (nd):
1.523
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Flatness (P-V):
Surface Quality:
60-40
Wavelength Range (nm):
360 - 2700

Material Properties

Coefficient of Thermal Expansion CTE (10-6/°C):
9.4 (+20 to +300°C)
Density (g/cm3):
2.56

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 235:

Product Details

  • Large Selection of Sizes
  • Available Uncoated, MgF2, or VIS-NIR Anti-Reflection (AR) Coated
  • Custom Sizes Available for Volume OEM Requirements

TECHSPEC® B270 Windows offer a high transmission from the visible to the near-infrared (NIR). They have a similar refractive index to N-BK7 while being more cost-effective. These windows are often used as a protective element due to their high solarization stability and chemical resistance, making them ideal for standard window applications. TECHSPEC® B270 Windows are available either uncoated or coated with a MgF2 or VIS-NIR Anti-Reflection (AR) Coating. Both circular and square options are offered in various sizes, and custom sizes and coatings are available for OEM applications. 

Technical Information

Frequently Purchased Together

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