Imaging Spectrographs

Near Infrared Spectrograph

NIR ImageThe near infrared spectrograph offers high optical performance and easy integration for the near infrared range. This spectrograph is designed to complement a camera that contains an InGaAs sensor and operates in the NIR (900 – 1700 nm) wavelength range.

near infrared spectrograph

For more information, including mechanical drawings, contact our application engineers.

Optical Characteristics
Spectral Range 900 - 1700 nm
Spectral Dispersion 110 nm/mm
Spectral Resolution 5 nm (w/ 30 µm slit)
Spatial Resolution RMS spot radius < 15 µm
Image Size (Spectral x Spatial) max. 7.6 x 14.2 mm
Numerical Aperture F/2.0
Optical Input Telecentric
Average Diffraction Efficiency > 50%, independent of polarization
Stray Light < 0.5% (halogen lamp, 1400 nm long-pass filter)
Slit Width, default 30 µm (50, 80 and 150 µm available on request)
Slit Length 14.3 mm
Magnification 1:1
Bending of Spectral Lines Across Spatial Axis Smile < 5 µm (0.066%)
Bending of Spatial Lines Across Spectral Axis Keystone < 5 µm (0.035%)
Astigmatism None
Mechanical Characteristics
Body Anodized Aluminum Tube
Size (W x H x L) 60 x 60 x 220 mm
Weight 1500 g
Lens Mount Standard C-mount
Camera Mount Standard C-mount or U-mount
User Adjustments Image axis rotation relative to detector rows, back focal length adjustable ±1 mm
Environmental Characteristics
Storage Temperature -20 °C to +85 °C, non-condensing
Operating Temperature +5 °C to +40 °C, non-condensing
Near Infrared Spectrograph Ordering Information
Part numberDescriptionProduct Name
MRC-305-003-01 ImSpector – Enhanced NIR Spectrograph N17E, 30 µm slit* (default) ImSpector N17E

*When ordering please specify if different slit width is needed.

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