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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

15mm Square Uncoated, B270 Window

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Stock #64-086 10 to 12 days
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₹2,654
Qty 1-5
₹2,654
Qty 6+
₹2,132
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Product Details

Type:
Protective Window

Physical & Mechanical Properties

Bevel:
Protective as needed
Clear Aperture CA (mm):
13.50 x 13.50
Dimensions (mm):
15.00 x 15.00
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):
15.00
Width (mm):
15.00

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 241:

Product Family Description

  • 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. 

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Anti-Reflection (AR) Coatings

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

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

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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?

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Surface Accuracy

BBAR Coating

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

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

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Anti-Reflection (AR) Coating

Bevel

Parallelism

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

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