| 摘要 |
PROBLEM TO BE SOLVED: To photograph the whole workpiece having a convex shape toward a camera with suitable brightness. SOLUTION: An illumination system 6 is used when photographing the sphere 10a of a workpiece 10 having a convex shape toward the camera 5, and includes a ring light source 7 arranged in the front nearer to the camera 5 than to the sphere 10a, and a reflection housing 8 surrounding around the image axis connecting the sphere 10a and the camera 5 from the ring light source 7 to the rear of the maximum outer diameter part 10e of the sphere 10a. COPYRIGHT: (C)2010,JPO&INPIT |
