A basic element of a machine vision system is the corresponding illumination system.
The price or even the feasibility of a machine vision system depends siginuicantly on the quality
of the image and the image itself is directly Influenced by the illumination quality of the object
(intensity, Intensity distribution, size, etc.).
Fiber optic illumination components are very suitable as illumination elements because they are
flexible, robust, they need only few adjusting elements and provide therefore easy means for well
defined and controlled illumination situations.
The very first step in a machine vision project is the image creation process. A good knowledge
of the illumination problems and the properties of illumination components helps to create an
optimal image and this in turn gives the opportunity to keep the image analysis system (hardand
software) as simple as possible.
While the classical way to create a good image is the illumination experiment, there are methods
to do a simulation of fiber optic components and to calculate the influence of design parameters
on the illumination distributions. This helps to predefine illumination parameters before creating
any hardware for illumination.