Virtual image

Virtual image
Image Im"age ([i^]m"[asl]j; 48), n. [F., fr. L. imago, imaginis, from the root of imitari to imitate. See {Imitate}, and cf. {Imagine}.] 1. An imitation, representation, or similitude of any person, thing, or act, sculptured, drawn, painted, or otherwise made perceptible to the sight; a visible presentation; a copy; a likeness; an effigy; a picture; a semblance. [1913 Webster]

Even like a stony image, cold and numb. --Shak. [1913 Webster]

Whose is this image and superscription? --Matt. xxii. 20. [1913 Webster]

This play is the image of a murder done in Vienna. --Shak. [1913 Webster]

And God created man in his own image. --Gen. i. 27. [1913 Webster]

2. Hence: The likeness of anything to which worship is paid; an idol. --Chaucer. [1913 Webster]

Thou shalt not make unto thee any graven image, . . . thou shalt not bow down thyself to them. --Ex. xx. 4, 5. [1913 Webster]

3. Show; appearance; cast. [1913 Webster]

The face of things a frightful image bears. --Dryden. [1913 Webster]

4. A representation of anything to the mind; a picture drawn by the fancy; a conception; an idea. [1913 Webster]

Can we conceive Image of aught delightful, soft, or great? --Prior. [1913 Webster]

5. (Rhet.) A picture, example, or illustration, often taken from sensible objects, and used to illustrate a subject; usually, an extended metaphor. --Brande & C. [1913 Webster]

6. (Opt.) The figure or picture of any object formed at the focus of a lens or mirror, by rays of light from the several points of the object symmetrically refracted or reflected to corresponding points in such focus; this may be received on a screen, a photographic plate, or the retina of the eye, and viewed directly by the eye, or with an eyeglass, as in the telescope and microscope; the likeness of an object formed by reflection; as, to see one's image in a mirror. [1913 Webster]

{Electrical image}. See under {Electrical}.

{Image breaker}, one who destroys images; an iconoclast.

{Image graver}, {Image maker}, a sculptor.

{Image worship}, the worship of images as symbols; iconolatry distinguished from idolatry; the worship of images themselves.

{Image Purkinje} (Physics), the image of the retinal blood vessels projected in, not merely on, that membrane.

{Virtual image} (Optics), a point or system of points, on one side of a mirror or lens, which, if it existed, would emit the system of rays which actually exists on the other side of the mirror or lens. --Clerk Maxwell. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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Look at other dictionaries:

  • Virtual image — Virtual Vir tu*al (?; 135), a. [Cf. F. virtuel. See {Virtue}.] 1. Having the power of acting or of invisible efficacy without the agency of the material or sensible part; potential; energizing. [1913 Webster] Heat and cold have a virtual… …   The Collaborative International Dictionary of English

  • virtual image — n an image (as seen in a plane mirror) formed of virtual foci * * * a picture from projected light rays that are intercepted before focusing, as by a plane mirror; it cannot be received on a screen, and it has the same orientation as the object.… …   Medical dictionary

  • virtual image — n. an optical image from which light rays appear to diverge, although they actually do not pass through the image * * * …   Universalium

  • virtual image — n. an optical image from which light rays appear to diverge, although they actually do not pass through the image …   English World dictionary

  • Virtual image — In optics, a virtual image is an image in which the outgoing rays from a point on the object never actually intersect at a point. A simple example is a flat mirror where the image of oneself is perceived at twice the distance from yourself to the …   Wikipedia

  • virtual image — menamasis vaizdas statusas T sritis fizika atitikmenys: angl. apparent image; virtual image vok. scheinbares Bild, n; virtuelles Bild, n rus. мнимое изображение, n pranc. image virtuelle, f …   Fizikos terminų žodynas

  • virtual image — noun Date: 1859 an image (as seen in a plane mirror) formed of points from which divergent rays (as of light) seem to emanate without actually doing so …   New Collegiate Dictionary

  • virtual image — noun a reflected optical image (as seen in a plane mirror) • Hypernyms: ↑reflection, ↑reflexion …   Useful english dictionary

  • Virtual image — Действительное изображение …   Краткий толковый словарь по полиграфии

  • Virtual — Vir tu*al (?; 135), a. [Cf. F. virtuel. See {Virtue}.] 1. Having the power of acting or of invisible efficacy without the agency of the material or sensible part; potential; energizing. [1913 Webster] Heat and cold have a virtual transition,… …   The Collaborative International Dictionary of English

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