光学雷达

optical radar (lidar)

light / ray / CL:道[dao4] / bright / only / merely / to use up

optics / optical (instrument)

to learn / to study / to imitate / science / -ology

surname Lei

thunder / mine (weapon) / (Internet slang) terrifying / terrific

thunder / (bound form) (military) mine, as in 地雷[di4 lei2] land mine / (coll.) to shock; to stun; to astound / (Tw) (coll.) spoiler / (Tw) (coll.) to reveal plot details to (sb)

radar (loanword)

surname Da

to attain / to reach / to amount to / to communicate / eminent