Inspect crach, chipping, other defects on glass edge in TFT-LCD production lines.

• Adopt alone-developing Prism to detect not only front side and back side, but also top side at the same time.
• Use 15um resolution for high precision detection.
• Adopt 4 TAP Camera(retain 4 rows image at the same time) for high speed inspection with max speed of 48m/min.
• Adopt illumination of LED, can reduce running cost.