| 单词 | image orthicon |
| 释义 | image orthiconnoun Television.a camera tube, more sensitive than the orthicon, in which an electron image generated by a photocathode is focused on one side of a target that is scanned on its other side by a beam of low-velocity electrons to produce the output signal. Origin of image orthiconFirst recorded in 1940–45 Words nearby image orthiconimage converter, image dissector, image enhancement, image intensifier, imagemaker, image orthicon, image printer, image processing, imager, imagery, imagesetter Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for image orthiconimage orthicon nouna television camera tube in which electrons, emitted from a photoemissive surface in proportion to the intensity of the incident light, are focused onto the target causing secondary emission of electrons Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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