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Related to Episcope: opaque projector





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.

References in periodicals archive ?
LEGRAND, Episcopat, episcope (nota 3), 419-421, y tambien M.
A more open and closer relation between Bishop and Episcope was achieved in Istra.
Kliment Ohridski is the first Macedonian episcope and founder of the Ohrid Archbishopric from which he spread Christianity.
On the absurdity of gender, see the episcope on the subject of Mitch/Michelle, recorded by Mark Simpson in Simpson and Zeeland 151-53.
Secondly, in the light of the bilateral dialogues, a request was made to the commission by the meeting of representatives of United and Uniting Churches at Ocho Rios, Jamaica, in 1995, that a study on episcope and episcopacy be undertaken.
Can the Roman Catholic Church and Tillard himself accommodate the understanding of episcope and the episcopate that is developing in Anglican-Lutheran rapprochment; how well-grounded is the use of `tradition' within the Roman Catholic Church to argue against the permissibility of ordaining women to the episcopate and priesthood?
TTD is also the source for the OB-31 night-driving episcope, which is a standard system on French armored fighting vehicles up to the Leclerc main battle tank (for which it is developing the OB-60 episcope in collaboration with Sopelem).
The bishop needs to exercise some sort of episcope or oversight, not necessarily because he wants to enhance his personal power, but for the unity of the church of which he is, on the local level, the sign.
This continuity is perhaps clearest in the italicized paragraphs that identify and describe areas of continuing disunity and seek "to stimulate reflection and encourage further agreement among the churches on the path to unity" (7)--so much so that, upon a first reading of TCTCV, one is sometimes struck at the lack of advance that has been achieved on some of these questions (for example, primacy, episcope, the threefold order of ministry) since 1982.
In "the care of all the churches," our archdeacons and regional deans were wonderful partners in the ministry of episcope.
Episcope, computer programs in veterinary epidemiology.