Indicator Light
Sunday, June 5th, 2011
LED Lighting – Enlightening the World
Light Emitting Diode, which is well known as target = "_blank"> LED lights in terms semiconductor electronics is a light that emits light as soon as an electric current is applied to it. They are widely used as indicator lights on electronic devices and also in higher power applications in the case of flashlights and area lighting. According to the methodology of technology, an LED is a source of light can be infrared, visible or ultra violet. The color is determined by the composition and state of the semiconductor material used. Discovered in 1907 by HJ Round, a British researcher at the beginning of these bulbs were used as replacements for incandescent indicators only.
Methodology
The white color of the LED bulbs come from a narrow blue band that is emitted naturally by GaN LED. The yellow on the other hand is generated by a layer phosphorus in the die which absorbs some of nowhere and becomes yellow. These die GaN are able to produce operating wavelengths from green to ultraviolet light through the variation of the relative amounts of indium and gallium during production. When the applied electric in the forward direction of the device results in a form of electro discharge luminescence where incoherent light and narrow-spectrum of the pn junction in a solid state material.
Advantages
LED technology has taken the world into a turbulent stage of development, as it is very useful in energy conservation and pollution. Some of the important advantages of the bulb –
1. LED lights are more efficient compared to conventional bulbs and tube lights. They produce more light per watt compared to incandescent bulbs and this aspect makes it very useful when used on battery power devices or power saving.
2. This technology has the ability to emit different colors of light without the use of color filters that traditional lighting methods require saving initial costs.
3. Due to its small size, which can be easily placed and light very quickly and achieve full brightness in microseconds.
4. These LED lights have a better life in cycling as compared to incandescent and radiate much less heat in the process of connecting and out.
5. Have a better life for around 35,000 to 50,000 hours of LED life and mostly not attenuation over time, rather than the abrupt burn-out of incandescent bulbs as compared to incandescent bulbs.
6. These Lights are shockproof and solid package of the LED can be designed to concentrate light. The fact that non-toxic (no mercury) also favors the application of these bulbs.
Disadvantages
However, resist all the benefits, there are some short comings faced by these LED lights too. listed below –
1. Compared with target = "_blank" bulbs Incandescent> LEDs are more expensive and their implementation depends largely on the temperature of the operating system. Require adequate heat sinking to make it more durable.
2. These LEDs are also sensitive to stress and have to be careful, because they involve a series of resistors or current regulated power supplies. As they work on the mechanism of the area source of light, it becomes difficult for them to operate the spherical light field.
3. The last being observed by scientists that the cool blue LED emitting white light blue danger is not safe for the eyes. The cold white light LED is not should be used for outdoor lighting near astronomical observatories. Taken together, these lights have certain limitations that are known as color contamination blue.
Applications
LED lights are perhaps the most advanced technology that is being his tool of people around the world. Its application is different and therefore can be divided into three distinct categories – Visual signal application where the record the lights of the lamp to the human eye directly, Illuminations, which reflects the LED light from an object to give visual feedback and, finally, technological approach that does not require contact with the human visual system as in the case of photosynthesis in plants of light.
Products & Trends
In the last decade, LED technology has expanded its reach into almost every home in the world. Small red spot, indicating that Wi-Fi enabled, excellent light source that we see in our rooms by simply connecting an outlet, LED applications are ubiquitous. Quality LEDs production are capable of efficiencies of around 70 lm / W, compared with 12 lm / W for incandescent light bulbs and single die devices are producing more than 100 lm.
Today one can find the involvement of these LED lights in many areas. Whether on the LCD screen computers or the latest mobile phones, Ipods or safety and security hardware such as the drainage system enabled LED micro lights or LED read at night LED technology is enormous and is growing by leaps and bounds. The latest trend in the electronic market is the green influence the world has not stopped private LED. The recent releases on the market are thelight LED bulbs that can help save up to 90% of electricity costs and reduces heat production and even more than the bulbs that claim to last up to 10 times longer than standard or compact fluorescent bulb. Some of the most advanced LED products enabled in the electronics world are –
LED lights activated faucet – Install this at home to take a fresh look at the water taps monotonous. Available in red and blue that are sensitive to heat and alert the user to change color as soon as the water temperature rises above 89 degrees Celsius.
LED Jellyfish Mood Lamp – These are the only desktop tank trick plays with his eyes, showing three jellyfish which swim with the help of 6 bright LEDs that are placed on top of the tank.
Sony Walkman – Sony, the largest provider of electronic products has launched a new Walkman NWZ-X1000 has a call (Organic Light Emitting Diode) touch screen OLED.
About the Author
I am a product analyst for b2b industry. My core profile is to understand industry, develop information architecture and plan the product. Developed many B2b verticals. My core interest is research and analyse industry trends, latest updates in market, industry product information. Based on my experience i have studied harwdare product industry and my interest is to share that information and develop network for harwdare industry so that business manufaturers, suppliers, traders can benefit from this resource.
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