单词 | reflectogram |
释义 | reflectogramn. 1. A record produced by a reflectometer; a graphical representation of the manner in which sound or ultrasound, light, or other radiation is reflected from a surface.Reflectograms are typically used for characterizing types of coal, alloys, and other materials by their reflectance. ΚΠ 1928 Mineral. Abstr. 3 Index 651 Reflectograms, goniometric. 1941 Proc. Physical Soc. 53 410 The ‘reflectogram’ method, in which the intensity distribution in the light reflected from a surface is used to obtain some information about the orientation of various parts of the surface,..is essentially an extension of the optical goniometer. 1970 Fuel 49 99/2 By inspection of the reflectogram of the vitrinite of a coal blend, it could immediately be seen how to adjust the value of G to the optimum by altering the blend composition. 1981 Optics Communications 39 55 The differential reflectograms of specific alloys..were found to have recognizable and characteristic line shapes. 1997 Science 29 Aug. 1235/1 Neutron reflectograms of films in which all polyanion layers were labeled with deuterium..also showed Kiessig fringes as the only characteristic feature. 2. An image produced by reflectography, esp. to reveal the drawing lines beneath a painting. Usually in infrared reflectogram. ΚΠ 1966 J. R. J. van Asperen de Boer in Stud. in Conservation 11 45/1 (heading) Infrared reflectograms of panel paintings. 1993 D. Gordon et al. Wilton Diptych 77/2 (caption) Infra-red reflectogram showing the underdrawing of the..angel's right hand. 2006 N.Y. Times (National ed.) 5 Nov. ii. 21/3 The infrared reflectogram reveals the difficulty the artist had in constructing the complex perspective in the right-side panel. This is a new entry (OED Third Edition, September 2009; most recently modified version published online March 2022). < n.1928 |
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