orthiconoscopen.

1939 Electronics July 11/1 On June 7th Albert Rose and Harley Iams of the RCA Manufacturing Company Research Laboratories at Harrison, revealed..the details of a new developmental television pick-up tube which..is one of the most significant advances in television electronics since the advent of the iconoscope itself. The new tube's formal name is ‘Orthiconoscope’ (‘Orthicon’ for short) from the Greek root ortho meaning ‘straight’ and iconoscope for ‘image-viewer’. The name derives from the fact that the curve between input light and output current is a straight line, in contrast to the similar curve of the iconoscope which is not linear.

1940 D. G. Fink Princ. Television Engin. iii. 111 The orthiconoscope displays no spurious signal, and there is accordingly no background shading defect to be compensated.

1953 S. W. Amos & D. C. Birkinshaw Television Engin. I. 81 The orthicon (orthiconoscope in full) was developed by Rose and Iams in America and used in that country immediately before the Second World War for outside broadcasts.