Automatic collimation technology and its application based on video graduation technology
Yuekang Shan, Ming Quan Zhou, Rong Xiang, Zhi Zhang, Yu Ji, Miaoyan Yang · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2006
Based on optical graduation technology, video graduation technology is proposed. The generation of video vertical line, horizontal line and crossing line is introduced. The principle and precision of video graduation and aiming are discussed. At last, an application example of the technology that used in the steel tape fixed length cutting system is presented.