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AvaBench Optical Bench

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The AvaBench series is a family of miniature high-resolution spectrometers designed for customers with the most demanding applications such as LIBS, OCT or Raman.

Four types of UV/VIS/NIR optical benches have been developed especially for OEM markets, delivering down to 0.05nm spectral resolution. The optical benches are Czerny-Turner designs with fiber-optic entrance connectors (Standard SMA, others possible), collimating and focusing mirrors and a plane diffraction grating. A choice of gratings with different dispersions and blaze angles allow applications in the 200-1,160 nm range.

All AvaBench optical benches are fully compatible with tec5USA’s advanced high-speed industrial electronics, accepting sensors such as linear CMOS or back-thinned CCDs for high frame rate measurements.

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  • Symmetrical Czerny-Turner.
  • Small angles, easy optical focusing and high resolution.
  • Ultra-low stray light design.


  • High resolution spectral bench for LIBS, OCT and Raman.
  • Configurable for a wide range of spectral coverages thanks to a large selection of plane gratings.
  • Compact, miniature platform allowing for multi-device / multi-channel measurements in a reduced footprint.


  • Focal length 75mm
  • Numerical aperture 0.07
  • Wavelength range Select range within 200-1,160nm
  • Grating Different versions available (groove density, efficiency)
  • Resolution 0.05 to 20 nm
  • Stray light 0.04% to 0.1%
  • Slit 10, 25, 50, 100, 250, 500 μm
  • Dimensions 120 x 91 x 21 mm
  • Sensors Linear CMOS & Back-thinned CCDs

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