Patent ID: 6040895
Filing Date: 2000-03-21
Classification: H05K

Abstract:
A method for optimally illuminating a group of objects an object having substantially identical object features, comprising the steps of:placing a first object in a group of objects in a field of view of a camera and obtaining an image of said object, said first object having an object feature and said object feature being present in said image;while said first object is in the field of view of said camera, illuminating said first object with illuminating light formed by emitted light from a plurality of illumination sources, the emitted light from each illumination source having a spectral distribution;providing a control device for each of said illumination sources and controlling said illumination sources by varying parameters of said control devices to vary the spectral distribution of the emitted light from each of said illumination sources until an optimized illumination of said first object by said illuminating light is achieved at which said object feature is reliably recognizable in said image;storing said parameters which produce an optimized illumination of said first object as stored parameters; andsetting said control devices with said stored parameters for illuminating all other objects in said group.