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November 17th, 2008 admin Leave a comment Go to comments

Led Aquarium

Importance and usefulness of Blue LED lights

Hunters and crime investigators in order to view things under dim light, especially for tracing blood markings, they use Blue LED lights. It finds use in decorative lighting, and in some form of therapies. Though LED, or light emitting diodes, was invented in the early 1920s and its practical application started in 1962, it took another nine years for blue LED lights to be produced. In LED technology, an electrical charge is passed through different semiconductor materials, and different colored lights are generated by the band gap resulting from the recombining of electrons due to the electric charge. The semiconductors used for producing Blue LED lights are gallium nitride and indium gallium nitride.

The early LED lights yielded very little light. With continued experimentation, the production of Blue LED lights was possible in 1993. Towards the end of 1990s, good quality LED lights became available and started getting used in myriad applications. Blue is one of the primary colors produced by LED technology and coating blue LED with phosphor of the required supplementary color produces white LED. In Blue LED lights, or for that matter all LED lights, the chip that is the light source is encased in resin and holds with it tiny reflectors. That is why LED lights do not need external reflectors. The lenses may be provided around the LED unit or inside them. The models with lenses around them emit a brighter light.

Blue LED lights are widely used for emergency vehicle lighting. A police car indicates their arrival or in order to communicate to another vehicle to pull over for questioning, flashes blue lights. Different states in the US have different rules for the use of Blue lights. The police are always allowed the use of blue lights and in some states firefighters and rescue personnel are also allowed the use of one.

Blue LED lights help in stealth operations by aiding the user to read maps and charts at night without being detected by others. Blue light is also helpful in viewing blood and other fluids. Because of it, policemen use Blue LED lights to trace blood or body fluid marks at a crime scene during investigations, and rescue workers use it in search operations. This property of blue light makes it a favorite of hunters also because they can locate animals with it by tracing blood trails.

Blue light can be intense without being harsh and so Blue LED lights are good as fog lights that need to pierce through the smoggy surroundings. Besides being widely used in police flashlights, blue light is used even as a tiny light in a keychain to help in the opening and closing of locks and searching of small things.

Blue LED lights do a very good job as decorative lights at party venues, and at theaters for stage lighting and outside lighting. It is good for home lighting requirements, for use in indicators and sensors in public places, and in communication technology. People use LED lights as Christmas lights and its soft glow lights up an aquarium also beautifully. Blue LED lights are also used in the treatment of burn injuries, wound healing, diabetic neuropathy, and some skin conditions.

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About the Author

I am a Microsoft Certified Professional (MCP,MCSD, MCAD.Net,MCSD.Net, MCP-.Net 2.0). I have been conducting Training and Certification Guidance for Microsoft Certifications for the past 8 years. I also own and manage a Web Design and Development Company and a SEO/SEM Company. I also like to write Articles on various subjects.