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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

50 x 50mm 30R/70T, VIS Plate Beamsplitter

Visible and NIR Plate Beamsplitters

Stock #47-241 3-5 days
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Qty 6+
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Angle of Incidence (°):
Clear Aperture (%):
Coating Specification:
Surface 1: 30/70 ±5% @ 550nm, ±10% @ 400 - 700nm
Surface 2: AR Ravg ≤1%, Rabs ≤2% @ 400 - 700nm
Dimensions (mm):
50.0 x 50.0 +0.0/-0.25
Cut with 0.25mm maximum edge chip
Beamsplitter-coated side is marked with a black dot
Parallelism (arcmin):
Reflection/Transmission Ratio (R/T):
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Flatness (P-V):
1λ per inch
Surface Quality:
Thickness (mm):
3.00 ±0.25
Standard Beamsplitter
Wavelength Range (nm):
400 - 700

Regulatory Compliance

RoHS 2015:
Certificate of Conformance:
Reach 240:

Product Family Description

  • Many Beamsplitting Ratios Available
  • Visible and NIR Coating Options Offered
  • Multi-Layer AR Coated Second Surface
  • C-Mounted Plate Beamsplitters Also Available

TECHSPEC® Visible and NIR Plate Beamsplitters are ideal for dual magnification imaging systems and for combining low power laser beams. These beamsplitters offer the optimum combination of polished, high-quality optical-grade glass with minimum substrate thickness. The broadband dielectric coatings provide maximum throughput, are ideal for minimizing ghost images, and have much less energy loss than metallic coatings. TECHSPEC® Visible and NIR Plate Beamsplitters are coated on their back surfaces with a multi-layer anti-reflection (AR) coating, reducing back reflections to less than 1.0% for each wavelength range. Note that for easy identification, the coated side of the beamsplitter is marked with a black dot.