Polyspectral cameras (multispectral and hyperspectral) in the near infrared and short-wave infrared (NIR, SWIR) 900-1700nm and extended-SWIR 900-2500nm.
For scientific, research (R&D&I) and industrial applications, including machine vision and online multispectral and hyperspectral imaging.
In the NIR-SWIR spectral range (900-1700, 900-2500 nm) the detection is based on InGaAs sensors typically, inherently (quite) more expensive than CMOS sensors. Therefore, these NIR-SWIR cameras cost much more than multispectral and hyperspectral cameras in the spectral range 400 - 1000 nm (VNIR, VISNIR), based on CMOS sensors.
Within polyspectral cameras no one agrees on how far to call multispectral and from where hyperspectral, but a good approximation would be:
- multispectral camera: measures up to a few spectral bands, maximum of 10
- hyperspectral camera: measures from about 10 spectral bands
Hyperespectral cameras in the SWIR (900 - 1700 nm, 900 - 2500 nm):
We offer cameras with push-broom technology ("HSG-Black" models) and different configurations. They are ideal for OEM integration into machines for online processes and general machine vision applications.
We also have models based on Fourier transform detection in the time domain using an ultrastable interferometer. This gives the NRS-HERA unmatched sensitivity with exceptional spatial and spectral resolution, and makes it ideal for static applications, especially in low-light conditions.
- HSG-BlackIndustry-SWIR-1.7(-Max): line-scanning camera (push-broom) for machine OEM integration; models with spatial resolution 640 px and 1280 px; 900 - 1730 nm.
- NRS-HERA-SWIR(-Ext-SWIR): camera for static applications; high sensitivity and spectral resolution; models with spectral range 900-1700 nm o 900-2300 nm
| HSG-BlackIndustry-SWIR-1.7
| HSG-BlackIndustry-SWIR-1.7-Max | NRS-HERA-SWIR | NRS-HERA-Ext-SWIR
|
| Technology | Line scanning (push-broom) | Interferometric, Fourier Transform (FT) based |
| Key aspects | In-line, machine vision applications | Low light, high sensitivity, static applications |
| Spectral range | 900-1730 nm | 900 - 1700 nm | 900 - 2300 nm |
| Spatial resolution | 640 px | 1280 px | 640 x 512 px | 320 x 256 px |
| Spectral resolution | < 9 nm (25 μm slit) | <5 nm @ 900 nm, <20 nm @ 1700 nm | <5 nm @ 900 nm, <30 nm @ 2300 nm |
| Sensor | InGaAs | InGaAs | T2SL |
| Lens | C-mount | Fixed, FoV 16 degrees |
| Working distance | na | 1 m - ∞ | 110 cm - ∞ |
| Dimensions | 60 x 80 x 145 mm | 220 x 160 x 105 mm | 240 x 170 x 120 mm |
| Weight | 2 Kg | 2.85 Kg | 5 Kg
|
Multispectral cameras in the SWIR (900 – 1700 nm):
We propose multispectral imaging cameras from the French company Silios Technologies with ColorShades® technology that divides the sensor into different zones by hybridizing a matrix of filters on a commercial CMOS sensor. In this way, each zone corresponds to a spectral band and thus the simultaneous capture of all of them is achieved. They are therefore “snapshot” type cameras.
Furthermore, unlike technologies with different sensors and lenses, all the spectral bands correspond to the same scene without the need to post-process and stitch the different spectral images so that they correspond exactly to the same real image.
Key features of the multispectral SWIR cameras:
| | SIL-Ant-Cam | SIL-Cicada |
| Typ. Spectral Range | 1100 to 1600 nm |
| Spectral bands | 9 |
| Bandwidth (FWHM avg) | 30 nm |
| Array type | InGaAs |
| Pixel pitch | 15 um | 5 um |
| Optical interface | CS-mount (C-mount with supplied adapt. ring) |
| Resolution (raw picture) | 640 x 512 | 1296 x 1032 |
| Resolution (spectral pictures) | 213 x 170 | 436 x 334 |
| Max. frame rate | 178 fps | 68 fps |
| Exposure time | 0.3 us to 7 ms | 33 us to 10 s |
| ADC | 16-bit | 12-bit |
| Interface | USB3.0 |
| Digital output | 16-bit USB3.0 | 12-bit USB3.0 |
| Power supply | USB3.0 |
| Dimension | 46.5 x 46.5 x 32.5 mm | 34 x 38 x 35 mm |
| Weight | 120 g | 70 g |
The multispectral and hyperspectral systems in the spectral range 900 - 2500 nm are suitable for applications that require polyspectral image such as:
- reciycling
- plastics
- food and agriculture (agri-food)
- art
- humidity
- forensics
- minerals
- pharmaceuticals
We are the distributors in Portugal and Spain of the manufacturers Haip Solutions (Germany), Nireos (Italy) and Silios Technologies (France).
Check here all our solutions in polyspectral imaging (hyperespectral and multispectral) in the visible-NIR (400-1000 nm):
