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Imaging Solutions for Science and Industry

Home > Products > VIS / SWIR HyperSpectral Imaging > Snapshot Spectral Imaging Camera
ximea and photonfocus snapshot cameras
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snapshot VIS/RedNIR/NIR camera with USB3.0

photonfocus-snapshot-nir-2021_51003110167_o

snapshot VIS/RedNIR/NIR camera with GigE

Snapshot Spectral Imaging Camera

Features

  • Spectral Resolution
    • VIS: 16 bands (10~15nm FWHM) from 460 – 600nm
    • RedNIR: 15 bands (10~15nm FWHM) from 600 – 860nm
    • NIR: 24 bands (10~15nm FWHM) from 665 – 960nm
  • Spatial Resolution: 2048 x 1088 (2MP after reconstruction)
  • AMS CMV2000 CMOS image sensor
  • Supports Hardware Triggering
  • Host Interface: USB3.0 | GigE, | GigE PoE | 10GigE
  • C-Mount compatible: works with industry standard lenses and microscopes
  • Includes HSI Mosaic Software for Image Acquisition and analysis
  • Includes HSI Studio Software for the interactive visualization of datacubes
  • Supported by a Full-featured API with both C and Python bindings

Typical Applications:

  • Assisted surgery
    • Robotic surgery
    • Endoscopy
    • Surgical microscopy
    • Tissue regeneration monitoring
  • Space
    • Global scale monitoring and sensing
    • Disaster management
  • In-field detection
    • Robotic anomaly detection
    • Security & surveillance
    • Precision Agriculture
    • Mining & mineralogy
  • Advanced machine vision
    • Waste management
    • Food safety and inspection
    • Material detection
    • Process monitoring
  • UAV remote sensing
    • Environment sensing
    • Marine plastic pollution

Product Documents

Camera Docs

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Snapshot cameras are used by scientists and engineers to spectrally inspect samples by rapidly acquiring selected spectral and spatial data from a field of view. The image sensors used in these cameras employ imec’s proprietary technology in which 10~15nm FWHM Fabry-Perot band-pass spectral filters are deposited in a pattern on the photosensitive pixels of a CMOS imager. In Snapshot cameras, the band-pass filters are deposited on the image sensors in a 4×4 or 5×5 mosaic pattern.

The cameras are c-mount compatible, which allows their use in microscopy or with conventional camera lenses. See below for an animation that describes the operation of snapshot cameras

Snapshot cameras generate spectral and spatial data at video rates, capturing the image circle that is projected by the lens or microscope optics onto the focal plane. Pixel values are read out and can now be rearranged with each λ plane along the z-axis representing the spatially sampled (x,y) intensity values measured for a particular wavelength.

The systems are robust enough for lab operation as well as for use in the field, on fixed or movable platforms including UAVs.

Users who wish to set up Snapshot camera systems for inspecting “macro” samples can select a lens with a focal length that allows them to achieve their Field-of-View requirements. To complete the system, users may add a Lab Setup kit that includes the following: (a) a mounting setup with vibration dampening on a breadboard with a sturdy metal frame (b) 2x Effilux Effi-Flex LED bars with diffusers (for VIS and RedNIR versions) -or- 4 x 20W Halogen lighting solution with diffusers (for NIR version) (c) a stabilized DC power supply (d) a 200mm x 200mm calibration tile with 95% reflectance (d) a Color checkerboard calibration card

Included with Snapshot cameras is HSI Mosaic software for the acquisition of spectral image datacubes which are ENVI compatible. HSI Mosaic is a powerful, user-friendly software that helps researchers discover spectrally significant information in the reflected light from their samples that is inaccessible via conventional imaging systems. Users may also interact with datacubes from HSI Studio, which is included with the camera. HSI Studio is a user-friendly tool for the interactive visualization of ENVI compatible datacubes.

Snapshot cameras are shipped as complete systems with a sturdy Pelicase in which the snapshot camera, all necessary cables and software are included.

Host Interface:

  • USB3.0
  • GigE
  • GigE PoE
  • 10GigE

Color Space Options:

  • VIS: 16 bands in 460 – 600 nm range
  • RedNIR: 15 bands in 600 – 860 nm range
  • NIR: 24 bands in 665 – 960 nm range
  • [For Snapshot SWIR imaging click here]

 

snapshot VIS snapshot RedNIR snapshot NIR
Spectral resolution 16 bands in 460-600 nm range (VIS) 15  bands in 600 – 860 nm range (RedNIR) 24 bands in 665 – 960 nm range (NIR)
Central Wavelengths (nm) 460.9, 468.1, 476.5, 486.0, 494.6, 506.4, 515.4, 524.5, 536.9, 543.9, 554.5, 563.2, 571.7, 582.6, 587.7, 598.2  609.0, 625.6, 648.0, 666.3, 683.9, 700.8, 718.9, 736.6, 754.1, 770.1, 786.2, 802.4, 818.3, 833.1, 849.4  668.7, 686.8, 700.1, 711.6, 728.0, 739.2, 752.3, 767.3, 780.7, 789.4, 804.5, 815.3, 828.3, 843.4, 852.9, 865.1, 879.4, 891.6, 899.8, 912.8, 922.2, 931.9, 942.4, 951.4 
Bandwidth per band (FWHM) ~10 - 15 nm (collimated)
Spatial resolution 2048x1088 (2MP after reconstruction)
Base imager type AMS CMV2000 CMOS detector
Acquisition speed Up to 120 spectral cubes/second
Pixel pitch 5.5 μm
Bit depth 10 bit
Optics C-mount
Triggering Via GPIO interface
Software HSI Mosaic software for raw image acquisition, data pre-processing, data cube visualization and classification & API for acquisition and pre-processing in custom software

imec's snapshot VIS, RedNIR and NIR cameras are offered with either USB3.0 or GigE host interface
Host Interface options USB3.0 Gigabit Ethernet (GigE)
Power Consumption 1.5 Watts < 5.1 Watts
Dimensions (WxHxD) 26mm  x 26mm x 31mm | 1.02" x 1.02" x 1.22" 55mm  x 55mm x 52mm | 2.17" x 2.17" x 2.05"
Weight 32 g (without optics) 265 g (without optics)
Included accessories USB3 and trigger cable Power supply, ethernet and trigger cable

Using the method described in our Knowledge Base Article titled “How Diffraction Limits the Optical Resolution of a Microscope” one can estimate the performance of this camera when used in a microscope with commercially available microscope objectives. In the table below, it is assumed that the microscope is comprised of the objective and a tube lens with the correct focal length for the objective such that the nominal optical magnification of the microscope is the value that is specified for the objective.

snapshot VIS / RedNIR / NIR Camera Parameters
Optical Format #Megapixels #H pixels #V pixels Pixel size (μm) H size (mm) V size (mm) Diagonal (mm)
> 2/3" 2MP 2048 1088 5.5 11.26 5.98 12.75
Commercially Available Objectives
Objective: Mag/NA 1X\0.03NA 2X\0.1NA 4X\0.13NA 10X\0.26NA 20X\0.5NA 40X\0.75NA 60X\0.85NA 100X\1.4NA
Min. feature size (um) 11.18 3.36 2.58 1.29 0.67 0.45 0.39 0.24
Max pix size (um) 5.59 3.36 5.16 6.45 6.70 9.00 11.70 12.00
FN (mm) 22 22 22 22 22 22 22 22
WD (mm) 8 56.3 17.2 16 2.1 16 0.66 0.31-0.4
NA 0.03 0.1 0.13 0.26 0.5 0.75 0.85 1.4
Magnification 1 2 4 10 20 40 60 100
Estimated Performance of Camera and Objective Combinations
(*) Limiting Resolution (µm) 11.18 5.5 2.75 1.29 0.67 0.45 0.39 0.24
Vignetting? No No No No No No No No
FOV (H x V) mm 11.26 x 5.98 5.63 x 2.99 2.82 x 1.5 1.13 x 0.6 0.56 x 0.3 0.28 x 0.15 0.19 x 0.1 0.11 x 0.06
FOV (diagonal) mm 12.75 6.38 3.19 1.28 0.64 0.32 0.21 0.13
Please contact our imaging experts for assistance in selecting a camera & objective combination that fulfils your FOV & resolution requirements at application-specific wavelengths.
1) The minimum feature size is estimated using the Rayleigh Criteria at λ = 550nm; it can be re-calculated for other wavelengths. R = 1.22*λ/(2NA)
2) The maximum pixel size is estimated by applying the Nyquist criteria to the minimum feature size as it appears on the imager plane. Maximum pixel size = R*magnification/2
3) Camera and Objective combinations which meet the Nyquist criteria and are therefore diffraction limited are indicated by showing the Limiting Resolution in green font. (*)
4) Values for Working Distance (WD) and Field Number (FN) are shown for reference only. Actual values may vary.
5) Vignetting, a darkening of the image at the corners, may be observed if the Imager Diagonal is larger than the Field Number of the Objective.

Please contact Scientific Imaging to select a suitable lens based on your Field-of-View requirements.

Optical format > 2/3" #H pixels #V pixels Pixel size (μm) H size (mm) V size (mm) Diagonal (mm)
snapshot VIS / RedNIR / NIR 2MP 2048 1088 5.5 11.26 5.98 12.75
In applications that require the best achievable optical resolution, it is desirable to use a lens with an optical resolution ≥ 91 lp/mm for an image sensor with a pixel size of 5.5μm. This will ensure that the optical resolution of the camera & lens combination is Nyquist-limited by the pixel-size of the camera, and not by the quality of the lens.

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