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20 x 28.28 x 2.5mm Elliptical Beamsplitter 50R/50T | Edmund Optics
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20 x 28.28 x 2.5mm Elliptical Beamsplitter 50R/50T

Stock #27-609 Clearance
Qty 1-5
Qty 6
Volume Pricing
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Dimensions (mm):
20.0 x 28.28
Dimensional Tolerance (mm):
Minor Axis (mm):
Major Axis (mm):
Clear Aperture (%):
Coating Specification:
Surface 1: Dielectric, ±5% R/T @ 550nm
Surface 2: AR ¼λ MgF2 @ 550nm
Reflection (%):
Thickness (mm):
Thickness Tolerance (mm):
Transmission (%):

Regulatory Compliance


Product Family Description

Elliptical 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. With an improved surface accuracy of λ/2, these beamsplitters are ideal for diffuse axial and in-line illumination integration. They are available in 50/50 beamsplitter coating and feature an anti-reflection coating to reduce back reflections. Commercial Grade Elliptical Beamsplitters offer commercial quality, at an affordable price.

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