N17E Enhanced SWIR Spectrograph

ImSpector Enhanced NIR Spectrograph. N17E, 30 ?m (default input slit)

SKU: MRC-305-003-01 Category:


Middleton Spectral Vision offers the complete line of ImSpector™ Series imaging spectrographs for spectral imaging applications in both industry and scientific research. Spectrographs are complex optical components that change a camera to a hyperspectral imaging device with full contiguous spectral information and high spectral resolution. The spectrograph can be attached and integrated with a monochrome camera using a standard C- or U-mount to build a line imaging hyperspectral camera. The spectrograph may be integrated by the end-user. Alternatively, the integration along with alignment and calibration can be performed at Middleton Spectral Vision for an additional fee. Contact Middleton Spectral for more details.

SWIR spectrograph

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


NIR-SWIR spectrograph datasheet

NIR Spectrograph Specifications

Optical Characteristics N17E
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 1:01
Bending of Spectral Lines Across Spatial axis Smile < 5 µm (0.066%) Bending of Spatial Lines Across Spectral Axis - none
Keystone < 5 µm (0.035%) Astigmatism
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 ··· + 85 °C, non-condensing
Operating Temperature + 5 °C ··· + 40 °C, non-condensing