| 释义 |
magic eye
[f. magic a. + eye n.1]
a. A miniature cathode-ray tube used as a tuning indicator on a radio receiver, or to indicate the correct adjustment of other electrical equipment.
Magic Eye is registered as a proprietary name in the U.S.
[1936Official Gaz. (U.S. Patent Office) 6 Oct. 21/1 RCA Manufacturing Company, Inc.,..Magic eye for radio receiving sets of the type equipped with cathode ray tubes for resonance indication and accessories and parts thereof.] 1937Night & Day 26 Aug. 28/1 Should one..plump for the [wireless] set with a ‘mystic eye’, or are those which boast a ‘magic eye’ or an ‘electric eye’ to be preferred? 1939Proc. IRE XXVII. 631/2 The ground wave alone was introduced into a receiver which had a ‘magic eye’. With this wave, the ‘eye’ remained exactly fixed in deflection. 1962A. Nisbett Technique Sound Studio v. 100 A ‘magic eye’ is a useful guide, but should not be relied on unless the recordist is quite sure of what its indications mean in terms of the particular programme material. 1968Radio Communication Handbk. (ed. 4) ii. 20/2 Magic-eye tubes are often used as voltage indicators in a.f and r.f. measuring equipment and also widely as indicators of signal level for tape recorders.
b. A photo-electric cell or similar electrical device used for identification, detection, or measurement.
1938Sun (Baltimore) 22 Feb. 20/3 Eleven pairs of ‘magic eyes’..have counted approximately 7,000,000 motor vehicles during the last year. 1945Nature 15 Sept. 320/2 The aids to the bombing of invisible targets which were variously called ‘H2S’, the ‘gen-box’, ‘Mickey’ and the ‘Magic Eye’. 1958Times 2 May 7/2 The large radio antenna carried on the superstructure of the Victorious..was a form of ‘magic eye’. 1962Daily Tel. 26 Oct. 17/7 The ‘magic eye’ records the wagon numbers of freight vehicles moving at speeds up to 100 mph. 1974Country Life 6 June 1449/1 An automatic ‘magic eye’ lets in exactly the right amount of light every time you want to take a picture. |