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FIBER OPTICS ENDOSCOPIC PHOTOGRAPHY SUBMITTED TO Sabri ALTINTA SUBMITTED BY Burak AKAY 9703163 BOAZ UNIVERSITY MECHANICAL ENGINEERING DEPARTMENT MATERIAL SCIENCE TERM PROJECT SUMMER 2000 ABSTRACT Fiber optics produced by special methods from silica glass and quartz which replaced copper wire is very useful in telecommunications long distance telephone lines and in examining internal parts of the body endoscopy Equipment for photography is available with all current fiber-optic endoscopes Through a process known as total internal reflection light rays beamed into the fiber can propagate within the core for great distances with remarkably little attenuation or reduction in intensity In general the methods of fiber production fall into three categories a the extrusion method for synthetic fibers b hot drawing of fibers from molten bulk material through an orifice and c drawing of uncoated coated and multiple fibers from assemblies of rods and tubes fed through a hollow cylindrical furnace Three forms of fiber optics components have been proposed for the improvement of the image quality field angle and photographic speed of various types of optical systems These fiber optics elements in the form of a field flattener a conical condenser and distortion corrector can be used separately or combined into a single unit called a Focon BOAZ NVERSTES MAKNA MHENDSL DEPARTMANI MALZEME DERS DNEM PROJES YAZ OKULU 2000 ZET Gnmzde bakr tellerin yerini alan silikon camndan ve kristalinden retilen fiber optikler telekomnikasyonda uzun mesafeli telefon hatlarnda ve insan vcudunun i ksmlarn inceleyen endoskopilerde kullanlmaktadr Fotoraf ekipmanlarnda da btn fiber-optik endoskoplara kullanlmaktadr Tam i yansma olarak bilinen ilem yoluyla fiberin iinde toplanan k nlar uzun mesafeler boyunca iddetinde kk bir azalma ve bozulmayla
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