Mechanical vision system using selective wavelength and brightness illumination

摘要

An illumination subsystem which is used in conjunction with a mechanical vision system and which has a plurality of intensity adjustable monochromatic light sources, at least two of which are of different wavelength illumination. An oblique illumination assembly is positioned off to the side of the video camera and is pointed at the subject to be viewed. A direct illumination assembly is positioned within the light path of the lens of the camera to facilitate direct illumination of the subject. The intensity of the emitters as well as there colors can be adjusted to provided optimum recognition for the mechanical vision system.