Optical UNI光用户网络接口opticaladj.视觉的；光学的optically coupled device光耦合装置optical preamplification前置光放大optical axis parallelism光轴平行度optically thickdiffusive强散射optical interface detect光学界面检测optical display keyboard光显示键盘optical-track guidance光学跟踪制导Optical Scanning Devices光扫描器optical branching filter光分路滤波器optical resonator cavity光空腔谐振器