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12.5 x 17.68 x 1mm NIR, Elliptical Plate Beamsplitter

Elliptical Plate Beamsplitters

Elliptical Plate Beamsplitters

Stock #48-914
Qty 1-5
Qty 6
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Surface Flatness:
Reflection/Transmission Ratio (R/T):
Wavelength Range (nm):
700 - 1100
Minor Axis (mm):
12.50 +0.0/-0.10
Major Axis (mm):
17.68 +0.0/-0.40
Parallelism (arcmin):
Clear Aperture (%):
Coating Specification:
Surface 1: 50R/50T (Rabs ±5% @ 900nm, Ravg ±10% @ 700 - 1100nm)
Surface 2: Ravg ≤1.0%, Ravg ≤2.0% @ 700 - 1100nm
Cut with 0.25mm Maximum Edge Chip
Surface Quality:
Thickness (mm):
Thickness Tolerance (mm):
Standard Beamsplitter

Regulatory Compliance

RoHS 2015:
Reach 205:

Product Family Description

  • 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. 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.

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