Illumination arrangement for long working range line-scan imaging system
Abstract:
A line-scan imaging camera can scan an object at a near field and a far field using a low F-stop value by reading out different rows on an imager. A line LED provides a line illumination over an object. Additionally, the imaging camera captures the illumination portion of the object through an optical path that includes mirrors that allow folded optics. The optical path is longer than the distance between the object and the camera. A mirror is located close to or adjacent to the line LED to provide efficient illumination and to align the initial leg of the optical path with the line illumination.
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