High throughput and robust spectrometer modules for OEM integration

The ROCK NIR spectrometers offer the market’s highest throughput industrial grade spectrometers. These benefits are accomplished by our highly efficient in-house manufactured transmission gratings and a high numerical aperture 0.22 (f/2.2) nearly on-axis beam geometry in the optical bench.

The ROCK NIR spectrometers enable better sensitivity and/or lower optical light input power than traditional spectrometers.

Contact Ibsen to get more information

Key Features

  • 900 to 1700 nm wavelength ranges
  • Numerical aperture of 0.22
  • Configurable resolution from 7.0 nm to 16 nm (typical)
  • Symmetrical peak shapes
  • Athermal optical bench
ROCK NIR Spectrometer

ROCK Spectrometer

How Do you Select the Best Spectrometer?


  • RSM-420 – ROCK NIR 900-1700 nm spectrometer with 256 pixels, TE-cooled InGaAs detector array
  • RSM-445 – ROCK NIR 900-1700 nm spectrometer with 512 pixels, TE-cooled InGaAs detector array

Download Product Sheets

pdf_icon Product sheet – ROCK-NIR 900-1700nm


Request a quotation here for any of our ROCK spectrometers. If you have special requirements for resolution, detector, or wavelength range just enter those into the “Request quotation” form.

Related Article

How to Obtain a Large Absorbance Range

How Do you Select the Best Spectrometer?