| 摘要 |
In a machine vision inspection system and a light source module, the light source module includes a semi-cylindrical lampshade and linear LED light sources for provide light beams. The luminance is determined by a number of rows of the linear LED light sources, a length of each linear LED light source and cooperation of colors, wavelengths or sizes of the LEDs. The linear LED light sources are located or assembled to an interior of a curved surface of the semi-cylindrical lampshade, and arranged from a first curved-surface edge to a second curved-surface edge of the curved interior by a preset interval and a relative included angle. An arranging direction of the linear LED light sources is same to an extending direction of the interior of the curved interior. The shadow caused by illuminating from one single side may be eliminated. The present invention possesses the advantage of low cost.
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