iconoscope noun. [ʌɪ'kɒnǝskǝʊp] M19.
[from ICONO- + -SCOPE.]
1. An optical instrument for giving an impression of relief when viewing flat images. M19-E20.

2. An early television camera tube in which an electron beam scanned a photoemissive surface bearing the optical image, the current from which varied according to the brightness of the various points on the surface. M20.

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