iconoscope

[ahy-kon-uh-skohp] /aɪˈkɒn əˌskoʊp/
noun
1.
a television camera tube in which a beam of high-velocity electrons scans a photoemissive mosaic.
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Origin
1930-35; formerly trademark; see icono-, -scope
British Dictionary definitions for iconoscope

iconoscope

/aɪˈkɒnəˌskəʊp/
noun
1.
a television camera tube in which an electron beam scans a photoemissive surface, converting an optical image into electrical pulses