ホログラフィック回折光学素子による光沢面検査用RGB照明の開発

抄録

A lighting module using a holographic optical element (HOE) for glossy surface inspection has been developed and demonstrated. This lighting module has several advantages for such kind of inspection compare to the usual lighting s ystem. The differences between HOEs lighting system and usual lighting system were discussed. HOEs were fabricated by our originally developed ultra-high speed collinear holographic printer. The several optical systems and image processing method using hue also were developed, the validity of our system for actual defect was investigated.