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All Products / Laser Optics / Laser Windows / Laser Line Windows / λ/4 N-BK7 Laser Line Windows
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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

5mm Diameter, 532nm V-Coat, λ/4 N-BK7 Window

See More by SCHOTT Optical Components

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Stock #49-125 3-5 days
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S$126.15
Qty 1-5
S$126.15
Qty 6+
S$101.50
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Specifications

General

Type:
Laser Line Window

Physical & Mechanical Properties

Bevel:
Protective as needed
Clear Aperture CA (mm):
4.50
Diameter (mm):
5.00 +0.00/-0.25
Thickness (mm):
2.00 ±0.20
Parallelism (arcmin):
≤1
Young's Modulus (GPa):
82
Poisson's Ratio:
0.206
Edges:
Fine Ground

Optical Properties

Coating:
Laser V-Coat (532nm)
Coating Specification:
Rabs <0.25% @ 532nm
Design Wavelength DWL (nm):
532
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
N-BK7
Surface Flatness (P-V):
λ/4
Surface Quality:
60-40
Index of Refraction (nd):
1.516
Abbe Number (vd):
64.17

Material Properties

Coefficient of Thermal Expansion CTE (10-6/°C):
7.1 (-30 to +70°C)
8.3 (+20 to +300°C)
Density (g/cm3):
2.51

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
View
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Reach 235:
Compliant
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Product Details

  • <0.25% Reflection at Design Wavelength
  • Coatings Available for HeNe, Diode, and Nd:YAG Laser Sources
  • Precision N-BK7 Substrate
  • Also Available Uncoated, MgF2 Coated and VIS 0° Coated

TECHSPEC® λ/4 N-BK7 Laser Line Windows are ideally suited for industrial and low power laser applications. The high tolerance design yields minimal beam distortion and scatter. Anti-reflection coatings provide <0.25% reflection at the coating's design wavelengths.

Laser Optics

Technical Information

Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

  • Custom dimensions, materials, coatings, and more
  • High-precision surface quality and flatness
  • Tight tolerances and complex geometries
  • Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.

Compatible Mounts