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Related to Episcope: opaque projector


McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



an optical system for projecting onto a screen images of opaque objects, such as hardware, technical drawings, illustrations, and photographs.

The basic optical diagram of an episcope is shown in Figure 2 in PROJECTOR. In an episcope, the object whose image is being projected reflects diffusely the light rays striking it; thus, only a small amount of the reflected light enters the projection lens. The brightness of the image is enhanced by using one or more powerful light sources as well as high-transmission projection lenses with relative apertures of up to 1:1.5–1:2. Since the focal lengths of episcope lenses are usually shorter than those of diascope lenses, the magnification produced by an episcope is lower. A mirror located above or behind the projection lens of an episcope inverts the image so that it is right side up when it appears on the screen (see: Figure 1). A special cooling system is required in an episcope because of the intense heat that is generated.

An episcope may be a component of the optical system of the alterable projectors known as epidiascopes, which can project images of both opaque and transparent objects onto a screen.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
(2) What are the ways of moral teaching and the ordering of ministry, which is to say, the nature of episcope? (3) What is the relationship of the church as local and universal?
Episcope Kliment, the Secretary of the Holy Synod, said that at its meeting Thursday the Synod went through all its decisions passed in the past year.
Partiendo de una poblacion total de hembras bufalinas adultas de 667 animales, se calculo el tamano de la muestra para la determinacion de la seroprevalencia, a traves del programa Win episcope 2.0, utilizando un error de 4%, nivel de confianza de 95% y una seroprevalencia esperada del 11% [27], por lo que el resultado arrojo 174 muestras.
The basic designated system is equipped with manual turret drives and an optical episcope with integrated aiming mark.
LEGRAND, H., Episcopat, episcope, Eglise locale et communion des Eglises dans la constitution apostolique Anglicanorum coetibus, Cristianesimo nella storia 32 (2011) 405-423.
Considering a confidence interval of 95% and an estimation error of 5%, the sample size should be 198, that is, a fraction sampling of 42% (Win Episcope 2.0; Thrusfield, Ortega, de Blas, Noordhuizen, & Frankena, 2001).
(20) Therefore, in March 1993 the SOC's Synod "persuaded" Metropolitan of Montenegro and the Littoral Amfilohije and Episcope Irinej of Backa to visit Pope John Paul II.