Description
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 |
|
|
|
|
| Aberrations |
|
|
|
| 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 |
