Research Support Instruments
IR Beam Expander

RSI Infrared Beam Expander

Optimized for 8-11.5 microns

RSI's IR Beam Expander is now for sale.  Features include:
  • Germanium and Zinc Selenide optics optimized for 8-11.5 micron wavelength range
  • 3.7-times magnification
  • 8.36 mm effective Entrance Pupil Diameter
  • 45-degree full Field Of View
  • 40 mm back working distance to Exit Pupil
  • Adjustment capabilities for collimation, 120 threads-per-inchRSI IR Beam Expander

  • Hyper- & Multi- Spectral Imagers
  • Chemical & Bio-agent detection
  • Target image recognition & analysis
  • Matched to currently available RSI/PSI products:
  • Fabry Perot Wide-Angle Interferometer
  • Infrared Beam Expander
    Optical Substrate
    Germanium & ZnSe
    Housing Substrate
    AR Coated
    Per your specification
    Mechanical Envelope
    Ф50 mm, 65 mm long
    Mechanical Interface

    Optical Layout:
    Optical Layout for IR Beam Expander

    Near Diffraction-Limited Performance:
    • 87% Encircled energy at Airy disk radial distance from centroid 0.4-milliradians
    • Wavefront error nearly invariant over field
    • Corrected for Spherical and Coma
    Performance: Spot Diagram of image rays in radians at exit pupil.
    IR Beam Expander PSFs

    Performance: Modulation Transfer Function in Spatial Frequency Space.

    RSI IR Beam Expander Angular Frequency

    Contact Mark Boies (Boies "at" for more information and to customize your order.

Research Support Instruments, Inc :: 4325-B Forbes Boulevard :: Lanham, MD 20706
(301) 306-0010 :: (fax) (301) 306-0295

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