| 释义 |
vidicon|ˈvɪdɪkɒn|
[f. video- + icono- scope.]
A kind of small television camera tube in which the image is formed on a transparent electrode coated with photoconductive material, the video signal being obtained from the variation in the current flowing to or from this as it is scanned by a beam of (usu. low-speed) electrons.
1950P. K. Weimer et al. in Electronics May 72/1 The name ‘vidicon’ has been coined to distinguish these tubes from the photoemissive tubes. 1961Listener 2 Nov. 726/3 A vidicon tube is also used in a small lightweight ‘radio camera’. 1966McGraw-Hill Encycl. Sci. & Technol. XIII. 465/2 Nearly all closed-circuit television cameras utilize a vidicon. 1978Nature 5 Oct. 414/1 The UV vidicons, when properly erased and prepared for use, can be exposed for several hours on very weak planetary emissions. 1981‘A. Hall’ Pekin Target xvi. 158 These are hard copies of some stuff we took from high altitude with vidicon cameras. |