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Recommended Conferences for Real Image

Real Image


In optics, a real image is an image which is located in the plane of convergence for the light rays that originate from a given object. If a screen is placed in the plane of a real image the image will generally become visible on the screen. Examples of real images include the image seen on a cinema screen (the source being the projector), the image produced on a detector in the rear of a camera, and the image produced on an eyeball retina (the camera and eye focus light through an internal convex lens). In ray diagrams (such as the images on the right), real rays of light are always represented by full, solid lines; perceived or extrapolated rays of light are represented by dashed lines. A real image occurs where rays converge, whereas a virtual image occurs where rays only appear to converge. Real images can be produced by concave mirrors and converging lenses if and only if the object is placed further away from the mirror/lens than the focal point and this real image is inverted. As the object approaches the focal point the image is approaching infinity, and when the object passes the focal point the image becomes virtual and is not inverted. If a viewer sees the image from the side in which the light rays leave the lens or mirror, a real image is one on the same side of the lens or mirror as the viewer, whereas a virtual image is one on the opposite side of the lens or mirror. For a real image, rays from a single source point converge to a single point on the other side of the lens. This means that a point on the image remains well-defined after the optical transformation A real image is a reproduction of an object via light that can be formed on a surface. A real image exists regardless of whether an observer is present. One example is the image seen on a screen at a movie theater (in contrast, the image one sees in a flat mirror is not a real image, but rather a virtual image). Real images are formed where rays of light actually converge, whereas virtual images occur with they are perceived to converge. Real images can be produced by passing light through converging lenses or with a concave mirror. A real image can also be produced by a pinhole (for example, in a pinhole camera in which no lenses are used). Real images are those where light actually converges, whereas virtual images are locations from where light appears to have converged. Real images occur when objects are placed outside the focal length of a converging lens or outside the focal length of a converging mirror. A real image is illustrated below. Ray tracing gives the position of the images by drawing one ray perpendicular to the lens, which must pass through the focal point, and a second ray that passes through the center of the lens, which is not bent by the lens. The intersection of the two rays gives the position of the image. (A third ray could be drawn which passes through the focal point on the left side of the lens; after passing through the lens, it would travel parallel to the axis, and would intersect the other two rays at the point where those rays already intersect. Note that the real image is inverted. (The image happens to be larger than the object. That happens because the object is between f and 2f away from the lens; if the lens were farther away than 2f, the image would be closer to the lens than 2f, and would be smaller than the object.) Relevant Conferences:- 1.19th Scandinavian Conference on Image Analysis, Denmark, 15-17 June, 2015 2.AIIM 2015, Digital Transformation: Embrace the Chaos March 18-20, 2015, San Diego, CA 3.Sixth International Conference on the Image 29-30 October 2015 Berkeley, California USA 4.ICMT 2015, March 28-29, 2015, Australia Relevant Society and Associations:- Real Diaper Association 1.ICREA 2.CREA Companies:- 1.Real Image Media Technologies 2.Corporate Image Associates

OMICS Group International is an amalgamation of Open Access publications and worldwide international science conferences and events. Established in the year 2007 with the sole aim of making the information on Sciences and technology ‘Open Access’, OMICS Group publishes 400 online open access scholarly journals in all aspects of Science, Engineering, Management and Technology journals

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This page was last updated on 23rd Sep, 2014

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