Image Engineering GEOCAL User Manual page 18

7 DATA SHEET
Overview
Product name
Principle
Features
7.2.1 Hardware
Diffractive Optical
Element (DOE)
Output window
Usable FoV
Dimensions (l x w x h)
Mounting points
7.2.2 Illumination (CAUTION: DO NOT LOOK DIRECTLY INTO THE LIGHT SOURCE!)
Light source
Wavelength
Output power
Laser Class (diode only)
Laser Class (device as
sold)
Lifetime
Warm-up time
7.2.3 Software
System requirements
Functions
Output data
Image Engineering
GEOCAL / GEOCAL XL
DOE-based geometric calibration of digital cameras
Generates a very evenly distributed grid of light points,
virtually originating from infinity
GEOCAL: Usable aperture: Ø 77 mm
GEOCAL XL: Usable aperture: Ø 155mm
(camera lens needs to have an equal or smaller diameter)
Approx. 30 – 120° (more extreme values need to be tested)
GEOCAL: approx. 575 mm x 144 mm x 170 mm
GEOCAL XL: approx. 850 mm x 244 mm x 270 mm
GEOCAL: 3 x M5x0,8 tapped holes in the base plate
GEOCAL XL: 10 x M5x0,8 tapped holes in the base plate
Frequency-stabilized diode laser
633 nm
5 mW
3B
1M
> 10.000h
Not required
PC with Windows 7 operating system (or higher)
USB port
• Load multiple images
• View selected image
• Perform calibration
• Overlay detected point grid
• Various tools for result visualization
• Export results (CSV and XML)
Camera intrinsic and extrinsic data, the orientation of DOE
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