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Abstract

An imaging system includes a line-scan camera (8) having an image line in an planar imaging beam path and a depth of focus. Line forming optics are arranged between at least two arrays of LEDs (4,6) and the image object so as to form two respective illumination stripes in two planar illumination beam paths (5,7). The planar imaging beam path (9) is located between the two or more planar illumination beam paths (5,7). The planar imaging beam path (9) and the two planar illumination beam paths (5,7) preferably intersect proximate to the far depth of focus of the camera. The image line and illumination stripes are parallel across an image area, which may comprise a transport device, such as a conveyor. The non-coplanar planar illumination beam paths provide maximum overlap at the farthest depth of field where illumination is most needed and diverge closer to the camera.

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First Claim