LED and Laser Transmitters LED Transmitter Light - emitting diode (LED) is a standard light source that carries low speed signals at short distances. LED light source is an all plastic fiber that transmits visible light. LED put out lower power and a bigger output pattern than laser light sources. LEDs have less bandwidth and are limiting to operate up to about 250Mhz or about 200Mbs. LED light sources do not contain hazardous material and last longer‚ about 10‚000 hours. Bulbs generate less heat
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played with lasers? We have all loved the laser fights in movies like Star Wars. Who wouldn’t want wield a laser around while fighting an enemy. Did you know that the term laser came from an acronym meaning “light amplification by stimulated emission of radiation.”? It should actually be all capitalized but for simplicity it isn’t. The first working laser was actually demonstrated by Theodore Maiman at the Hughes Research Laboratories back in 1960. The strength of early lasers was measured
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While both laser therapy and scaling and root planing are both effective treatment methods for periodontal disease‚ scaling and root planing is used as a traditional method also called a deep cleaning while laser therapy is used as a relatively new alternative therapy. Both methods are usually used for patients who have periodontal disease with gingival pocket depths over 4mm. Though scaling and root planing has been the conventional treatment in the past‚ since 2008 laser therapy has doubled in
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Laser hair removal was performed experimentally for about 20 years before it became commercially available in the mid-1990s.One of the first published articles describing laser hair removal was authored by the group at Massachusetts General Hospital in 1998. The efficacy of laser hair removal is now generally accepted in the dermatology community‚[citation needed] and laser hair removal is widely practiced in clinics‚ and even in homes using devices designed and priced for consumer self-treatment
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The name James Meredith is not very known to the general public‚ even when he played a major role in the civil rights movement. Nevertheless‚ Meredith can be compared to the likes of other major civil rights leaders‚ such as Martin Luther King Junior or Malcom X. His iron will enabled him to confront an entire Mississippian society who was out to get him. His will was what enable him to achieve his goal. This was to enforce the rights as a civilian of African Americans to attend the University of
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perception processor is a single chip modeled on the perception capabilities of the human brain‚ which can detect objects in a motion video signal and then locate and track them in real time. Imitating the human eye s neural networks and the brain‚ the chip can handle about 20 billion instructions per second. This electronic eye on the chip can handle a task that ranges from sensing the variable parameters as in the form of video signals and then process it for co-Generic visual perception processor is a
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Signature of Head of the Institution with seal Date: Place: LASERS AND ITS APPLICATIONS Abstract: A laser is an optical device that emits coherent light (electromagnetic radiation). The term ’laser’ is an acronym for Light Amplification by Stimulated Emission of Radiation. Typically‚ lasers are thought of as emitting light in a narrow‚ low-divergence beam‚ with a narrow wavelength spectrum (’monochromatic’ light). Lasers need not have either characteristic‚ however‚ it is the coherence of
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Laser projection keyboard is one of gadget that developed for a long time but it wasn’t popular. Seems like most of people really like this gadget.However a few years later laser projection keyboard was created for using with IPad and IPhone. When a user touches the surface cover by an image of a key ‚ the device records the corresponding keystroke. A laser projection keyboard was invented and patented by IBM engineer in 1992. It optically detects and analyses human hand and finger motions
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Types and benefits of Laser Skin Resurfacing Laser resurfacing is a procedure of skin resurfacing that makes the use of laser for treating minor flaws on your face or to enhance the skin appearance. It is usually done with two kinds of laser. One is ablative or wounding laser that eliminates thin skin layers and the other being a non-ablative or non-wounding laser that boosts the growth of collagen and tightens up the underlying skin. Non-ablative laser resurfacing being less invasive requires little
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1. Introduction Blu-ray is a new optical disc standard based on the use of a blue laser rather than the red laser of today’s DVD players. The standard‚ developed collaboratively by Hitachi‚ LG‚ Matsushita (Panasonic)‚ Pioneer‚ Philips‚ Samsung‚ Sharp‚ Sony‚ and Thomson‚ threatens to make current DVD players obsolete. It is not clear whether new Blu-ray players might include both kinds of lasers in order to be able to read current CD and DVD formats. The new standard‚ developed jointly
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