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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

Elliptical Plate Beamsplitters

Elliptical Plate Beamsplitters

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  • Circular Profile at 45°
  • Visible and NIR Coating Options Offered
  • Ideal for Diffuse Axial and In-line Illumination

TECHSPEC® Elliptical Plate Beamsplitters maximize beamsplitting efficiency while minimizing required mounting space. These beamsplitters are ideal for diffuse axial and in-line illumination. When oriented at 45°, the beamsplitters create a circular aperture equal to the diameter of the minor axis. TECHSPEC® Elliptical Plate Beamsplitters are available with either a visible or NIR 50% reflection/50% transmission beamsplitter coating and feature a high efficiency multi-layer anti-reflection (AR) coating to reduce back reflections. The beamsplitters are offered in either a 1 or 3mm thickness, in a range of major and minor axis measurements and wavelength ranges. 

Common Specifications

Construction:
Plate
Edges:
Cut with 0.25mm Maximum Edge Chip
Parallelism (arcmin):
<1
Thickness (mm):
1.00
Thickness Tolerance (mm):
±0.1
Reflection/Transmission Ratio (R/T):
50/50
Substrate:
N-BK7
Surface Flatness (P-V):
<2λ (per inch)
Surface Quality:
60-40

Products

 Substrate   Reflection/Transmission Ratio (R/T)   Wavelength Range (nm)   Minor Axis (mm)   Major Axis (mm)   Thickness (mm)   Compare   Stock Number   Price  Buy
N-BK7 50/50 400 - 700 12.50 18.68 1.00 #48-913 C$225.57 Qty 6+ C$203.31   Request Quote  
  • In Stock
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N-BK7 50/50 700 - 1100 12.50 18.68 1.00 #48-914 C$238.92 Qty 6+ C$215.18   Request Quote  
  • In Stock
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N-BK7 50/50 400 - 700 25.00 36.36 1.00 #48-915 C$283.44 Qty 6+ C$255.25   Request Quote  
  • In Stock
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N-BK7 50/50 700 - 1100 25.00 36.36 1.00 #48-916 C$296.80 Qty 6+ C$267.12   Request Quote  
  • In Stock
    ×
 
N-BK7 50/50 400 - 700 50.00 71.71 1.00 #48-917 C$434.81 Qty 6+ C$391.78   Request Quote  
  • In Stock
    ×
 
N-BK7 50/50 700 - 1100 50.00 71.71 1.00 #48-918 C$446.68 Qty 6+ C$400.68   Request Quote  
  • In Stock
    ×
 

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.