High luminance surface-emitting lighting increases inspection accuracy

Uneven illumination leads to poor inspection accuracy

After a pressing process, such as for automobile doors, the completed part is illuminated and inspected via a camera. Traditionally, parts were often sent to the next process without proper detection of any burrs or chipping. These defects were only detected during the final inspection prior to shipping. Although these inspection errors were often thought to have been caused by poor camera detection sensitivity, insufficient lighting is also thought to have been a contributing factor. Normally, camera inspection system lighting contains variations in luminance below the bulb and in the surrounding area. The inability to uniformly illuminate the object for inspection can often lead to camera recognition errors.

High luminance surface-emitting lighting improves inspection accuracy