%0 Journal Article %T Tracking Servo System With New Optical Head Locked Objective Lens %A Inada, H. %A Nomura, T. %A Shimonou, S. %A Ichiyama, Y. %J Proceedings of SPIE %V 421 %P 136-142 %@ 0277-786X %D 1983-11-10 %I SPIE %~ DeepDyve