| 释义 |
electronographic, a.|ɪˌlɛktrənəˈgræfɪk|
[f. electron2 + -o + -graphic.]
1. Employing or being a printing process in which ink is transferred without pressure by utilizing electrostatic attraction between the printing surface and that to be printed.
1948Business Week 13 Mar. 24/1 If Huebner makes his Electronographic press work, he will revolutionize printing press design. 1949Amer. Printer Dec. 106/2 The electronographic press prints without pressure, utilizing controlled polarities of static charges. 1971R. W. & E. W. Polk Pract. Printing (ed. 7) xli. 318 A process of electronographic printing known as Onset can produce matter by any printing method through the application of electronic principles instead of pressure of a form on a sheet.
2. Pertaining to or being an image tube in which photoelectrons are accelerated and focused on to a sensitive emulsion to form an image.
1964Astron. Jrnl. LXIX. 534/2 (heading) Transfer efficiency and storage capacity of electronographic image tubes. 1970Sci. Jrnl. Mar. 14/1 The Spectracon electronographic image intensifier was developed for astronomers. 1977New Scientist 24 Mar. 712/2 At present one of the most sensitive devices for recording astronomical pictures is the electronographic camera. 1985Astron. & Astrophysics CXLIV. 343/1 High resolution electronographic plates were used to study three extreme Population II stars.
Hence (as back-formations) eˈlectronograph, an image obtained by electronography; electroˈnography, electronographic techniques or their use.
1955M. Reifer Dict. New Words 72/1 Graphic Arts... Electronography. 1967Publ. Astron. Soc. Pacific LXXIX. 567 It will be possible, using electronography, to measure the magnitudes of such objects as..extremely faint gravitationally contracting stars embedded in the Orion Nebula. 1970Sci. Jrnl. Mar. 14/1 Because the electron beam is focused, an ‘electron picture’ (electronograph) results. 1975Physics Bull. Oct. 446/2 The paper includes an interesting comparison of pictures of a human pelvis made by conventional radiography and by electronography. Ibid., The sensitivity so far obtained is about the same as that of a medium speed film–screen combination but the resolution of the electronograph is distinctly better and there is a marked absence of background fog and noise. |