optical+illusions
1optical illusion — optical illusions N COUNT An optical illusion is something that tricks your eyes so that what you think you see is different from what is really there. Sloping walls on the bulk of the building create an optical illusion …
2Optical illusion — This article is about visual perception. For the Time Requiem album, see Optical Illusion (album). An optical illusion. The square A is exactly the same shade of gray as square B. See checker shadow illusion. An optical illusion (also called a… …
3optical illusion — The term optical illusion is used in a narrow and a broad sense. In the narrow sense, it denotes an illusion attributable to the optics of the eye. In the broad sense, it is used as an equivalent of the term visual illusion, denoting any… …
4Optical phenomenon — An optical phenomenon is any observable event that results from the interaction of light and matter. See also list of optical topics and optics. A mirage is an example of an optical phenomenon. Common optical phenomena are often due to the… …
5Optical — Optic Op tic ([o^]p t[i^]k), Optical Op tic*al ([o^]p t[i^]*kal), a. [F. optique, Gr. optiko s; akin to o psis sight, o pwpa I have seen, o psomai I shall see, and to o sse the two eyes, o ps face, L. oculus eye. See {Ocular}, {Eye}, and cf.… …
6Optical circle — Optic Op tic ([o^]p t[i^]k), Optical Op tic*al ([o^]p t[i^]*kal), a. [F. optique, Gr. optiko s; akin to o psis sight, o pwpa I have seen, o psomai I shall see, and to o sse the two eyes, o ps face, L. oculus eye. See {Ocular}, {Eye}, and cf.… …
7Optical square — Optic Op tic ([o^]p t[i^]k), Optical Op tic*al ([o^]p t[i^]*kal), a. [F. optique, Gr. optiko s; akin to o psis sight, o pwpa I have seen, o psomai I shall see, and to o sse the two eyes, o ps face, L. oculus eye. See {Ocular}, {Eye}, and cf.… …
8optical illusion — UK / US noun [countable] Word forms optical illusion : singular optical illusion plural optical illusions something that looks very different from what it really is, usually because of the way that it is drawn or lit …
9Обман Оптический (Optical Illusions) — это восприятие чего либо, что не присуще действительно существующему во внешнем мире предмету. Оно возникает в результате наличия обманчивых качеств, присущих некоторым стимулам, и не является патологическим.ОБОЛОЧКА (integument) мембрана или… …
10geometric-optical illusion — The term geometric optical illusion is indebted to the Greek words geometria (land surveying) and opsis (seeing). It was introduced in or shortly before 1854 by the German physicist Johann Joseph Oppel (1815 1894) to denote a *visual… …
