Posted in | Image Sensors

Spectral Analysis Using V-EOS Widefield Hyperspectral Camera

Photon etc. offers the V-EOS widefield hyperspectral camera, which gives complete information about the target with full resolution images at wavelengths ranging from 400 to 1000nm. With a patented design based on volume Bragg gratings, the V-EOSTM redefines spectral analysis and offers a range of monochromatic images at user-specified wavelengths.

Key Features

The main features of the V-EOS are:

  • High-performance CCD
  • Non-dispersive technology
  • Continuously tunable
  • Motorized focus
  • Control and analysis software available

Applications

The applications of the V-EOS are:

  • Mining, oil and gas operations – Rapid mineral identification is performed by spectral signature analysis of improved underground exploration or by drill core characterization.

  • Dermatology – A software extension enables high precision mapping of the nature and extent of abnormal tissues, and also allows effective monitoring of the medication effects in clinical research

  • Environment and agriculture – Infrared spectroscopy helps in analyzing various components of the environment and helps fight different sources of pollution.

Specifications

Performance
Spectral Channels Continuously tunable
Spatial Resolution 2 mm at 1.20 m with a FOV of 1.85 m x 1.35 m
Spectral Range 400 - 1000 nm
Standard Field of View (custom available) 72º Horizontal, 50º Vertical
Calibration Automatic
Wavelenght absolute accuracy < 0.4 nm
Entrance Slit Size No slit / Full field of view measured for each wavelength
Spectral Width Sampling ≥ 0.1 nm programmable
Spectral Resolution 2 nm
Spectral Image Rate 3 fps
Pixel Size 6.45 µm x 6.45 µm
Dynamic Range (digitization) 14 bit
CCD Frame Rate 13.5 fps
Smile Distortion ≤ 0.5 nm
Keystone Distorsion No
Barrel Distortion ≤ 2% due to widefield entrance optics
Noise Level 7e- RMS @ 25 MHz
Camera Type Interline
Camera Acquisition (linear or matrix) Matrix
Lens Mount Standard C-Mount (option for CS-mount)
Camera Interface USB
Frame Grabber Needed No
Exposure Control PHySpec software controlled
Binning (horizontal and vertical) 1x1 ; 1x2 ; 2x1 ; 2x2
Detector Type CCD
Focus Motorized
Software & Data Processing
Operating System Windows XP SP2, Vista, 7
Fonctions  
Acquisition PHySpec software
Preprocessing Image stabilization, spatial filtering, statistical tools, spectrum extraction, data normalization, spectral calibration
Hyperspectral Data Format FITS
Single Image data format FITS, PNG, TIFF, JPG
Spectrum Data Format JPG, PNG, TIFF, CSV, PDF, SGV
Option C++ SDK plugin interface included
Motor Control
Control Step motor driver embedded
Power Supply 24 V
Dimensions, Weight & Power
Footprint 305 mm x 610 mm x 270 mm
Weight 20 kg
Power Consumption ≤ 20 W (including CCD)
Portability
Mounting 305mmx610mm optical breadboard; ¼ imperial threaded
Tripod Optional
Environmental Conditions
Operation Temperature 10 - 40ºC
Storage Temperature 0 - 50ºC
Accessories
Computer Not included
Objective Lens Included
Reference Panels Reflectance standard and calibration lamp

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