突变型多模光纤multimode step-index optical fiber
电传光学投影系统teletype optical projection system【光】
旋旋光性；旋光度optical activity
量子势阱光波导quantum well optical waveguide
【物理】磁性光学mechano-optical
光学高温计optical pyrometer
视差optical parallax
耐磨光纤abrasion resistant optical fiber