| 单词 | image tube |
| 释义 | > as lemmasimage tube image tube n. Electronics and Television an electron tube in which a (visible or invisible) image is formed on a photoemissive surface, causing it to emit a corresponding flow of electrons which may then be used to reproduce the image in a different form; cf. image converter n. and image intensifier n. ΘΚΠ the world > physical sensation > sight and vision > optical instruments > instruments to refract, etc., light > [noun] > image tube image intensifier1930 image tube1936 image converter1937 intensifier1939 1936 N.Y. Times 3 Jan. 1/3 The new electron image tube converts the scene it receives in ‘black light’ directly into visible pictures on its fluorescent screen. 1971 Nature 3 Sept. 37/1 The difficulties associated with studying very faint [celestial] objects are very great, because of the increasing difficulty in detecting photons against the natural and man-made noise, even with the use of image-tube techniques. 2003 A. Abramson Hist. Television, 1942–2000 ix. 140/2 A silicon target had..the broadest spectral response ever obtained in an image tube. < as lemmas |
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