释义 |
WordReference Random House Unabridged Dictionary of American English © 2024vid•i•con (vid′i kon′),USA pronunciation n. [Television.]- Radio and Televisiona camera tube in which a charge-density pattern is formed on a photoconductive surface scanned by a beam of low-velocity electrons for transmission as signals. Cf. Saticon.
- vid(eo) + icon(oscope) 1945–50
Collins Concise English Dictionary © HarperCollins Publishers:: vidicon /ˈvɪdɪˌkɒn/ n - a small television camera tube, used in closed-circuit television and outside broadcasts, in which incident light forms an electric charge pattern on a photoconductive surface. Scanning by a low-velocity electron beam discharges the surface, producing a current in an adjacent conducting layer
Etymology: 20th Century: from vid( eo) + icon( oscope) |