iHR550 Imaging Spectrometer


The iHR550 spectrometer offers a unique combination of spectral quality, flexibility, robustness, and ease of use that makes it the ideal general-purpose spectrometer for performing spectral measurements with quality results.

With a focal length of 0.55 m, the iHR550 is designed to deliver superb image quality for spectral measurements, and offers the ability to perform multi-track experiments with up to 20 fiber inputs. Incorrect and re-diffracted spectra are eliminated using an asymmetric Czerny-Turner design, in conjunction with our patented on-axis grating drive system. The iHR550 has two entrance and two exit ports available. Each exit port can be configured for use with either an Array detector, such as a CCD, or with a slit for use with a PMT.

Built as a single-piece cast aluminum housing, the iHR550 is robust and ready to easily make the most difficult measurements.


  • A Unique Shape for a Unique Spectrometer
  • Superior Imaging Performance
  • No Re-diffracted Light
  • Flexible & Easy to Use

Manufactured by HORIBA Scientific


Focal Length

550 mm



Spectral Range

150 to 1500 nm with 1200 g/mm grating
150 nm to 40 µm with appropriate gratings

Grating Size

76 mm x 76 mm

Number of Gratings on Turret


Flat Field Size

30 mm x 12 mm

Resolution with Exit Slit and PMT

0.025 nm

Wavelength Accuracy

± 0.20 nm


± 0.075 nm

Spectral Dispersion

1.34 nm/mm



Stray Light

1 x 10-5

Scan Speed

160 nm/sec

Step Size

0.002 nm

Computer Interface

USB 2.0 (USB 1.1 compatible)



648 mm (25.51 in)


460 mm (18.09 in)


193 mm (7.78 in)

Optical Axis Height
from the bottom of the instrument

98 mm (3.9 in)

Nominal Weight

28 kg (62 lb)