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1 HOLOGRAPHY G.A.HARINI B.Tech Student, Department of CSE, Sphoorthy Engineering College, Nadergul(Vill),Sagar Road, Saroonagar(Mdl),R.R Dist.T.S. T.SOMA SHEKAR Associate Professor, Department of CSE, Sphoorthy Engineering College, Nadergul(Vill),Sagar Road, Saroonagar(Mdl),R.R Dist.T.S. J.DEEPTHI HOD CSE, Department of CSE, Sphoorthy Engineering College, Nadergul(Vill),Sagar Road, Saroonagar(Mdl),R.R Dist.T.S ABSTRACT: This research papers examines the new technology of Holographic Projections. It highlights the importance and need of this technology and how it represents the new wave in the future of technology and communications, the different application of the technology, the fields of life it will dramatically affect including business, education, telecommunication and healthcare. The paper also discusses the future of holographic technology and how it will prevail in the coming years highlighting how it will also affect and reshape many other fields of life, technologies and businesses. INTRODUCTION Holography is composed of the Greek terms, "holos" for "whole view" and gram for "writing or drawing Holography is the science of producing holograms, it is an advance version of photography that allows a image to be recorded in three-dimensions based on light reflection, rather than of an image formed by a lens, and it is used to display a fully three-dimensional image of the holographed subject, which is seen with our naked eyes. Image changes as the position and orientation of the viewing system changes HISTORY OF HOLOGRAM Holography was a discovery of unexpected result of an research in improving electronic microscope in 1948 by Hungarian Physicist DENNIS GABOR a British Scientist for which he received the Nobel prize in physics in The basic idea was to get a perfect optical imaging. Dennis Gabor was born on June 5 th, 1900 in Budapest, Hungary, in central Europe. Although physics fascinated him, he finally decided to study electrical engineering in Budapest WORKING OF HOLOGRAPHY Requires a laser as the light source Image is captured as interference pattern Working of holography is divided into two phases: 1. Recording 2. Reconstruction All rights Reserved. Page 3923
2 COMPONENTS REQUIRED 1. LASER Usually helium-neon (HeNe) lasers are used 2. BEAM SPLITTER Device that uses mirrors and prisms to split laser beam into two beams i. Object beam ii. Reference beam 3. MIRRORS Direct the beams of light to the correct locations 4. HOLOGRAPHIC FILM Can record light at a very high resolution Layer of light-sensitive compounds on a transparent surface ( Silver Halide Photographic Emulsion ) RECORDING A HOLOGRAM Optical arrangement of recording a hologram All rights Reserved. Page 3924
3 RECONSTRUCTING A HOLOGRAM 1. REFLEX HOLOGRAM Optical arrangement of reconstructing a hologram TYPES OF HOLOGRAMS Illuminated by a spot of white incandescent light source, from front-above The image consists of light reflected by the hologram Produces multicolor holograms, makes images optically indistinguishable from the original objects 2. TRANSMISSION HOLOGRAM Viewed with laser light, usually of the same type used to make the recording Need light source behind them Virtual image can be very sharp and deep 3. COMPUTER-GENERATED HOLOGRAMS No need for a real object Interference pattern is calculated digitally, using algorithms WHY HOLOGRAPHIC DISPLAY A high resolution three dimensional recording of an object No need for projection screen Life like images Interactive display IMPORTANCE AND NEED OF 3D HOLOGRAPHIC PROJECTION Rapidly growing technology Project large-scale, high-resolution images onto free space Accommodate multiple viewers independently and simultaneously Create tremendous effects on all fields of life including business, education, science, art and healthcare Enabling viewing and manipulation of virtual 3D objects in 3D space without the need for special viewing goggles or headgear All rights Reserved. Page 3925
4 EVOLUTION OF DISPLAYS PROJECTED COST OF 3D HOLOGRAPHIC PROJECTION Also known as ''Musion Eyeliner WORKING OF 3D HOLOGRAPHIC PROJECTION Loosely based on an illusionary technique called Peppers Ghost John Henry Pepper - attempted to popularize the effect Latest and vary unique High Definition 3D Projection Technology Image is captured in 3 dimensional Aspect with a Special Hi Definition Camera on a specially built stage Projected at various Distant Locations Without wearing any kind of 3D glasses It starts with the patented foil, completely invisible to the naked eye, right at 45 across the stage Holographic display is based on a Spatial Light Modulator All rights Reserved. Page 3926
5 DISPLAY SETUP A video projector, preferably DLP with an HD card/minimum native resolution of 1280 x 1024 and brightness of lumens A hard-disc player with 1920 x 1080i HD graphics card, Apple or PC video server, DVD player A Musion Eyeliner Foil(1/8" thick Acrylic version) and a stage set Lighting and audio as required Subjects are filmed in HDTV and broadcast on to the foil through HDTV projection systems, driven by HD Mpeg2 digital hard disc players, or uncompressed full HDTV video TIMELINE OF HOLOGRAPHY ADVANTAGES AND APPLICATIONS OF 3D HOLOGRAPHIC PROJECTION ADVANTAGES OF 3D HOLOGRAPHIC PROJECTION A high resolution three dimensional images Glasses free 3D display No need for projection screen Life like images Interactive display APPLICATIONS OF 3D HOLOGRAPHIC PROJECTION Real world applications are endless Live stage shows Advertising Gaming Education Entertainment Training Medical Military and Space Applications All rights Reserved. Page 3927
6 FUTURE SCOPE Future IPad with an inbuilt Holographic projector A palm sized holographic projector that projects an entire Computer. You re PC on your palm A teacher uses a holographic projection of the human body to show body metabolisms CONCLUSION Holographic Technology has endless applications as far as the human mind can imagine Will become a very integral part of human societies and civilizations in the future In future, holographic displays will be replacing all present displays in all sizes, from small phone screen to large projectors REFERENCES 1. Ahmed Elmorshidy, Holographic Projection Technology: The World is Changing IEEE paper published on May Schnars, U. & Jueptner, W. 2003, Digital Holography, First Edition, Springer-Verlag, Berlin 3. Li Weiying, JianQiao Coll. The 3D holographic projection technology based on three-dimensional computer graphics Audio, Language and Image Processing (ICALIP), Samsung 3D holographic cell phone rear-projection screen patent Posted on 22 February 2008 by Chris Davies All rights Reserved. Page 3928
7 AUTHOR s PROFILE G.A.Harini, B.Tech Student, Department of CSE, Sphoorthy Engineering College, Nadergul(Vill),Sagar Road, Saroonagar(Mdl),R.R Dist.T.S. T.Soma Shekar, Assistant Professor, Department of CSE, Sphoorthy Engineering College, Nadergul(Vill),Sagar Road, Saroonagar(Mdl),R.R Dist.T.S. J.Deepthi, Associate Professor & HOD, Department of CSE, Sphoorthy Engineering College, Nadergul(Vill),Sagar Road, Saroonagar(Mdl),R.R Dist.T.S All rights Reserved. Page 3929
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