The SELFOC lens (gradient-index lens) is a lens array composed of numerous lenses. This unique optical system forms a continuous linear image as a whole and is used as a key component in line scan systems and photosensitive printing systems. In response to the growing demand in recent years for industrial inspection equipment, we have developed the "SLA 5DG" lens, which features a long depth of field, and the "SLA 5AG" lens, which combines long depth of field and long working distance. Additionally, we have introduced the "SLA 9AGX series," which offers high resolution and long working distance, making it ideal for measurement applications.