| 摘要 |
A pickup tool (30) has reflective surfaces (42, 44, 46, 48) attached thereto. The pickup tool (30) picks up an object (38) and moves the object (38) over a light source (51). The reflective surfaces (42, 44, 46, 48) reflect a light beam (61) emitted from the light source (51), generating deflected light beams (63, 65, 67, 69) which back light the object (38). The deflected light beams (63, 65, 67, 69) form silhouette images of the object (38) in cameras (52, 54, 56, 58). A visual inspection of the object (38) is performed by analyzing the images.
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