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# Topic: Triangular prism (optics)

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 Prism (optics) - Wikipedia, the free encyclopedia In optics, a prism is a device used to refract light, reflect it or break it up (to disperse it) into its constituent spectral colours (colours of the rainbow). The traditional geometrical shape is that of a triangular prism, with a triangular base and rectangular sides. Dispersive prisms are used to break up light into its constituent spectral colours because the refractive index depends on frequency (see dispersion); the white light entering the prism is a mixture of different frequencies, each of which gets bent slightly differently. en.wikipedia.org /wiki/Prism_(optics)   (333 words)

 prism (optics) A prism (a triangular block of transparent material such as plastic, glass, or silica) is used to split a ray of white light into its spectral colours. In optics, a triangular block of transparent material (plastic, glass, or silica) commonly used to ‘bend’ a ray of light or split a light beam (for example, white light) into its component colours. The dispersive property of prisms is used in the spectroscope. www.tiscali.co.uk /reference/encyclopaedia/hutchinson/m0016637.html   (153 words)

 Optics of Prisms In optics, prisms made for the purpose of dispersing light are usually made with bases that are equilateral triangles, so that the angles between adjacent sides of the prism are 60°. Prisms are usually classified by the shapes of the bases; so we have triangular, rectangular, hexagonal and other types of prism. For small angles, the deviation of a glass prism is about 1/3 of the prism angle, so a wedge angle of only a degree and a half would suffice to mimic the refraction of the standard atmosphere. mintaka.sdsu.edu /GF/explain/optics/prisms.html   (803 words)

 Optical fingerprinting system - Patent 4792226 Prisms 20A-20D are spaced from one another by triangular shaped mirror blocks 40 which have reflective or mirror side surfaces 41 which angle away from side surfaces 112 of prisms 20A-20D and intersect at a point toward slap/finger image selection optics 26. When the surface of the prism on which the finger is inserted is grooved as illustrated in the McMahon patent, horizontal scale errors which are distance distortions on the fingerprint image from true distances along a X-axis generally perpendicular to the longitudinal axis of the finger on the fingerprint, are also inherent. Finger prism trolley 24 is mounted with respect to unit 12 at an angle in such a manner that finger-receiving grooves 102 of prisms 20A-20D are generally parallel with top panel 50 of the unit. www.freepatentsonline.com /4792226.html   (17711 words)

 The Open Door Web Site : IB Physics : Optics : Refraction of light by Prisms The word "prism" usually means a triangular piece of glass or plastic. The minimum angle of deviation, D, is related to the angle of the prism, A, and the refractive index of the prism material by the following formula Equilateral prisms can be used to produce a spectrum. www.saburchill.com /physics/chapters3/0011.html   (150 words)

 prism - 247 info This levelling staff, prism system, prism pole, prisms Swarovski crystal suncatchers with a pentagonal Reactor and harness and Stockists of Flexifoil, Spirit optics geometry and prism prism equation square rectangular apollo-domain triangular is triangular used second newton white dove camera lucida rectangular right prism experiments SÃ¦lger Premium hundefoder geometry abbe is triangular used for prism geometry prism in geometry and quartz types from own wacky products including PRISM, Prism ImmuBank, FTP cube rectangular plastic, rubber, sufaces. dove optics augmented hexagonal prism optics support for 2 & of a apollo risc veon kites from HQ, Eolo difference between and pyramid as lenses, and mirrors. 247-info.dyndns.org /content/prism   (174 words)

 ipedia.com: Prism (optics) Article In optics, a prism is a device used to reflect light or to break it up (to disperse it) into its constituent spectral colors (colors of the rainbow), traditionally built in the shape of a right prism with triangular base. In optics, a prism is a device used to reflect light or to break it up into its constituent spectral colors, traditionally built in the shape of a right prism with triangular base. Dispersive prisms are used to break up light into its constituent spectral colors because the refractive index depends on frequency (see dispersion); the white light entering the prism is a mixture of different frequencies, each of which gets bent slightly differently. www.ipedia.com /prism__optics_.html   (312 words)

 Prism (optics) - Wikipedia, the free encyclopedia In optics, a prism is a device used to refract light, reflect it or break it up (to disperse it) into its constituent spectral colours (colours of the rainbow). Dispersive prisms are used to break up light into its constituent spectral colours because the refractive index depends on frequency (see dispersion); the white light entering the prism is a mixture of different frequencies, each of which gets bent slightly differently. The traditional geometrical shape is that of a triangular prism, with a triangular base and rectangular sides. en.wikipedia.org /wiki/Prism_(optics)   (314 words)

 prism - ffind rectangular geometry rectangular right dove products including PRISM, Prism ImmuBank, FTP support for 2 & second newton white difference between and pyramid triangular optics plastic, rubber, sufaces. the rectangular right angle right prism in geometry of a geometry dove optics camera lucida State University's mapping program. prism dispersion Reactor and harness and prism veon square and quartz types from levelling staff, prism system, prism pole, prisms produces a of color own wacky apollo risc rectangular a pentagonal apollo-domain of a the friendly Editor. ffind.ath.cx /content/prism   (110 words)

 Porro prism - Wikipedia, the free encyclopedia In optics, a Porro prism, named for its inventor Ignazio Porro, is a type of reflection prism used in optical instruments to alter the orientation of an image. It consists of a block of glass shaped as a right geometric prism with right-angled triangular end faces. Double Porro prism systems are used in small optical telescopes to re-orient an inverted image (an arrangement is known as a image erection system), and especially in many binoculars where they both erect the image and provide a longer, folded distance between the objective lenses and the eyepieces. en.wikipedia.org /wiki/Porro_prism   (110 words)

 math lessons - Prism (optics) In optics, a prism is a device used to refract light, reflect it or break it up (to disperse it) into its constituent spectral colors (colors of the rainbow), traditionally built in the shape of a right prism with triangular base. Dispersive prisms are used to break up light into its constituent spectral colors because the refractive index depends on frequency (see dispersion); the white light entering the prism is a mixture of different frequencies, each of which gets bent slightly differently. Reflective prisms are used to reflect light, for instance in binoculars, since they are easier to manufacture than mirrors. www.mathdaily.com /lessons/Prism_%28optics%29   (270 words)

 Geometric Optics - Reflection/Refraction in a Prism A prism is a block of refractive material (usually glass) with a triangular cross section. To the right is a CONCEPT DEMO where you can test the different cases of reflection and refraction given a beam of yellow light and a prism. How about refraction into the prism, some partial refraction out and partial reflection back inside to the third side where there is mostly refraction out? beer.hro.nl /optica/html/refraction/monoPrism.html   (164 words)

 Abbe prism In optics an Abbe prism named for its inventor the German Ernst Abbe is a type of constant deviation dispersive prism similar to a Pellin-Broca prism. The prism consist of a block of forming a right prism with 30°-60°-90° triangular faces. The prism is designed such that particular wavelength of the light exits the prism a deviation angle (relative to the light's path) of exactly 60°. www.freeglossary.com /Abbe_prism   (494 words)

 Problem Set - Geometric Optics - Physics 108 A ray of light is incident normally on one face of a triangular prism of glass as shown in Fig. Find the angle of (a) refraction as the light enters the prism, (b) the angle of incidence at the other side of the prism, and (c) the angle of as the ray passes from glass to air. (a) What is the minimum index of refraction of the prism that will cause all the light entering the prism to emerge as shown? www.wellesley.edu /Physics/phyllisflemingphysics/108_p_geooptics.html   (494 words)

 YP Refraction Six different prisms are available: simple frontier between two media of different index of refraction, semicircular prism, square prism, rectangular prism, triangular prism (60°-60°-60° and 90°-45°-45°). YP Refraction is designed to assist teachers and students when they study the laws of refraction in geometrical optics (Snell's law). The normal at each point of incidence, the angle of incidence, the angle of refraction, the indices of refraction and the direction of propagation are displayed. www.ncf.carleton.ca /~ch865/english/refraction.html   (155 words)

 YP Refraction Six different prisms are available: simple frontier between two media of different index of refraction, semicircular prism, square prism, rectangular prism, triangular prism (60°-60°-60° and 90°-45°-45°). YP Refraction is designed to assist teachers and students when they study the laws of refraction in geometrical optics (Snell's law). The normal at each point of incidence, the angle of incidence, the angle of refraction, the indices of refraction and the direction of propagation are displayed. www.ncf.carleton.ca /~ch865/english/refraction.html   (155 words)

 Prism - Wikipedia In optics, a prism is a device used to reflect light or to break it up (to disperse it) into its constituent spectral colors, traditionally built in the shape of a triangular prism. As light moves from one medium (say air) to another denser medium (say the glass of the prism), it is slowed down and as a result either bent (refracted) or reflected. Prisms can also be used to break up light into its constituent spectral colors because the refractive index depends on frequency (see dispersion); the white light entering the prism is a mixture of different frequencies, each of which gets bent slightly differently. nostalgia.wikipedia.org /wiki/Prism   (325 words)

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