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

20mm Diameter, 1064nm V-Coat, λ/4 N-BK7 Window

See More by SCHOTT Optical Components
×
Stock #49-150 3-4 days
×
Quantity Selector - Use the plus and minus buttons to adjust the quantity. +
£79.47
Qty 1-5
£79.47
Qty 6+
£63.75
Volume Pricing
Request Quote
Prices shown are exclusive of VAT/local taxes
Product Downloads

Specifications

General

Type:
Laser Line Window

Physical & Mechanical Properties

Bevel:
Protective as needed
Clear Aperture CA (mm):
18.00
Diameter (mm):
20.00 +0.00/-0.25
Thickness (mm):
3.00 ±0.20
Parallelism (arcmin):
≤1
Young's Modulus (GPa):
82
Poisson's Ratio:
0.206
Edges:
Fine Ground

Optical Properties

Coating:
Laser V-Coat (1064nm)
Coating Specification:
Rabs <0.25% @ 1064nm
Design Wavelength DWL (nm):
1064
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
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:
Certificate of Conformance:
Reach 235:

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.

Frequently Purchased Together

Compatible Mounts

Title  Type Compare Stock Number   Price  Buy
20.0mm Optic Dia., Optic Mount Fixed #64-559 £25.93
Request Quote
  • 3-4 days
    ×
2.0 - 35.0mm Optic Dia., Three-Screw Adjustable Ring Mount Fixed #03-668 £52.70
Request Quote
  • 3-4 days
    ×
9.5 - 73.0mm Optic Dia., Three-Screw Adjustable Ring Mount Fixed #36-605 £65.88
Request Quote
  • 3-4 days
    ×
5.0 - 25.0mm Optic Height, Metric Bar-Type Optic Holder Fixed #55-529 £80.75
Request Quote
  • 3-4 days
    ×
7.0 - 40.0 Optic Height, English Bar-Type Optic Holder Fixed #03-676 £84.15
Request Quote
  • 3-4 days
    ×
10.0 - 60.0mm Optic Height, Metric Bar-Type Optic Holder Fixed #55-530 £85.85
Request Quote
  • 3-4 days
    ×
19.5 - 108.0mm Optic Dia., Three-Screw Adjustable Ring Mount Fixed #03-670 £90.10
Request Quote
  • 3-4 days
    ×
7.0 - 67.0 Optic Height, English Bar-Type Optic Holder Fixed #03-669 £91.80
Request Quote
  • 3-4 days
    ×
8.0 - 118.0 Optic Height, English Bar-Type Optic Holder Fixed #03-666 £95.20
Request Quote
  • 3-4 days
    ×
4.0 - 36.0mm Optic Dia., Self-Centering Jaw Clamp Fixed #16-077 £124.95
Request Quote
  • 3-4 days
    ×
2"/50.8mm Diameter, Bar Type Lens / Filter Holder, Quick Start Optical Mounts Fixed #17-530 £127.71
Request Quote
  • Contact Us
    ×
5.0 - 100.0mm Optic Dia., Self-Centering Jaw Clamp Fixed #16-078 £325.55
Request Quote
  • 3-4 days
    ×