"Optics" Essays and Research Papers

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Fiber Optics History of Fiber Optics History Of Fiber Optics In 1870, John Tyndall, using a jet of water that flowed from one container to another and a beam of light, demonstrated that light used internal reflection to follow a specific path. • Alexander Graham Bell patented an optical telephone system, which he called the Photophone • He dreamed of sending signals through the air, but the atmosphere didn't transmit light as reliably as wires carried electricity. • During the 1920s, John...

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Descartes Optics

Descartes Optics Descartes's theories of light and vision were central components of his natural philosophy, closely linked to his cosmology, physics, theory of matter, and theory of perception. Descartes replaced traditional explanations of natural phenomena with explanations hidden under terms of matter and motion. By eliminating these theories, Descartes needed to formulate new explanations of the qualities of bodies and our perception of them. In other words Descartes goes on to call into...

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Jelly Optics

Jelly Optics Investigatory Project in Physics Chapter 1 The Problem and its Background Introduction When light hits a boundary between two substances, it often bends. This is called refraction. Refraction is the bending of a wave when it enters a medium where its speed is different. The refraction of light when it passes from a fast medium to a slow medium bends the light ray toward the normal to the boundary between the two media. Refraction is responsible for image formation by lenses...

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Fiber Optics

Fiber Optics Fiber Optic Cable Facts "A relatively new technology with vast potential importance, fiber optics is the channeled transmission of light through hair-thin glass fibers." [ Less expensive than copper cables [ Raw material is silica sand [ Less expensive to maintain If damaged, restoration time is faster (although more users are affected) [ Backbone to the Information Superhighway Information (data and voice) is transmitted through the fiber digitally by the use of high...

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Fiber Optics

Fiber optics is a cable that is quickly replacing out-dated copper wires. Fiber optics is based on a concept known as total internal reflection. It can transmit video, sound, or data in either analog or digital form . Compared to copper wires it can transmit thousands of times more data (slide 2) . Some of its general uses are telecommunications, computing, and medicine. <br> <br>The very first "fiber" was made in 1870 by the British physicist John Tyndal. In this experiment that he showed to the...

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1 Unit – 4 Engineering Physics OPTICS Dr. V.P.N. Padmanaban M.Sc., Ph.D., Associate Professor 1. Interference Interference of light waves is a superposition phenomenon. This phenomenon was first described by Thomas Young in 1801. It provided strong evidence for the wave theory of light. In Young’s interference experiment, an incident monochromatic light is diffracted by a slit in the first screen, which then acts as a point source of light that emits semicircular wavefronts. It is...

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Free Space Optics

FREE SPACE OPTICS NEXT GENERATION COMMUNICATION PRESENTED BY V.LAXMANA VENKATA KUMAR 09PA1A04B6 ABSTRACT: FSO may sound new and experimental but in fact it predates optical fiber and has its roots in wartime efforts to develop secure communication systems that did not require...

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Tutorial: Optics and Cm

index of refraction of the material surrounding the prism. Find the required index of refraction of the surrounding material so that (a) only red light and (b) all colors except violet emerge from the slanted face. [Ans: 1.075; 1.083] 5. Corrective Optics. Bill is farsighted and has a near point located 125 cm from his eyes. Anne is also farsighted, but her near point is 75.0 cm from her eyes. Both have glasses that correct their vision to a normal near point (25.0 cm) and both wear the glasses 2...

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trip to malacca

Zoom 2000 stereomicroscope combines high performance with flexible features to offer the optimal viewing experience. For education and observation, it delivers crystal clear optics with a wide range of magnification. 1 - Encased optics to prevent damage from dust, dirt and tampering: ■ High-quality, all glass optics with precision coatings produce distinct detail in every image ■ Parfocal design: view the entire specimen, and zoom to a detail - without losing focus 2 - The vision...

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Free Space Optical Communication

optical communication is a kind of communication that use light propagation to send data between two points. Free Space Optics are capable of up to 2.5 Gbps of data, voice and video communications through the air, allowing optical connectivity without requiring fiber-optic cable or securing spectrum licenses. So we can use LED’s or Laser for transmission data. Free Space Optics (FSO) technology is relatively simple. It's built on a laser transmitter and a receiver to provide full duplex capability...

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