LED LIGHTS AND ENERGY SAVING ELECTRONICS |
Diodes LED light revolution
LED lamps, which give a nice white light, consume little and last many years, are called to do away with the incandescent bulb
Conventional wisdom says that the bulbs are fused because no manufacturer would be interested in selling an eternal lamp. Sell it once, of course. However, lamps are emerging that provide a clear light, not heat, consumes twenty times less than an incandescent bulb and last years. Soon illuminate your home: are the LEDs. The interior design is a slave of technology: When came the Plastics, the houses were filled with bright orange furniture which, incidentally, are back in fashion. For its part, halogen bulbs, small and very bright, they changed the shape of the lamps and made the installation of recessed halogen spotlights in the ceiling in the first task for the DIY handyman. What can we expect in the coming years as flipping a switch? Lamps smaller, brighter and greener. The future is LED.How they work?: When Albert Einstein received the Nobel Prize in physics in 1921 was not for his theory of relativity, but by an apparently more modest: the photoelectric effect. Einstein described how some materials, when subjected to an electric current, they emit light. The light produced by the photoelectric effect has a specific frequency (ie, a single color), which depends on the type of material. There is also the opposite effect, which makes photovoltaic panels produce electricity when exposed to light. The LEDs are known since the 60s. Are those red and green pilot in all of electronics. Inside the plastic cap of a LED is a semiconductor material. When applying a small electrical current, emits light without heat and with a defined color. The color may even be visible to the human eye, such as infrared LED that is in the TV remote control. A blue question. If the LEDs are so old, why not become popular before? The problem is precisely the color. The red and green diodes were very easy and inexpensive to produce, but not blue. Everything changed in 1993 when the researcher Shuji Nakamura found a cheaper manufacturing process with two compounds: Gallium Nitride and Indium Nitride, which are used today. Countries like China, are producing lots of ledtech electronic compounds.
To get white light to be mixed in equal parts red, green and blue. You can do the experiment to look closely at a white part of the computer screen, and check which is composed of tiny dots of these colors. In departing, he is white. The discovery of the blue LED opened the door to domestic lighting, computer screens lighter and more spectacular disco lights, which may be any color and controlled with a PC, and also a spate of blue LEDs in appliances and cars " tuned. " Advantages of LEDs:
* Size: with the same light, one LED takes up less space than an incandescent bulb.
* Brightness: the LED's are brighter than a light bulb, and besides, the light is not concentrated in one point (as the filament of the bulb) but the entire LED shines equally.
* Duration: one LED can last 50,000 hours, or what is the same, six years on constantly. That is 50 times longer than incandescent bulbs.
Consumption *: replacing a traffic light LED light bulbs consume 10 times less with the same brightness.
Under development. So why is selling lamps and LED lighting in stores? Even with all their advantages, are not yet ready to reach the average consumer wishing to buy leds. The white light LEDs, they are actually blue LEDs with a phosphor coating that produces yellow light. The amount of yellow and blue produce white light sometimes called "Moonlight" which is used in LED flashlights. Such LEDs are still expensive. 3W lamps, can replace a 40W bulb, they cost about 65?. The savings in consumption and duration are not sufficient reasons for consumers to be launched by them. Not so in other applications where the duration and consumption are indeed important factors such as traffic lights, aircraft lighting or lanterns that are used in extreme sports (such as mountaineering, caving, etc.), where this technology lighting has been found, so far, one of its major markets. "For its high price, still not worth it for the house," says Jose Antonio Lopez, from Ciampi Group a consultant study of company projects specializes in LED lighting. The progress comes at full speed and an LED lamp with the same features can lower the price in a matter of months. Lopez suffers the consequences of this speed. You can not have stock. Next year, the same led lamp and light up cost half double. That yes, in five years, the rest will disappear. The incandescent light bulb will be used only as something romantic. "
The development of light-emitting diode has become a serious candidate for the interior of car lights
The current car lights, known as H7 lamps "are coming to an end. New technologies that offer more intense light and clearly moving away gradually from the headlights of cars. Xenon seemed the only substitute, but the advancement of LED lamps, so far reduced the use in drivers, indicators and third brake light, will allow its use as crossing lights from 2008. LED stands for Light Broadcast Diode (Light Emitting Diode). We all know them because they are widely used in music channels we have at home or in the additional brake lights of cars. It is a small electronic switch that creates a flow of electrons which in turn generates an electromagnetic radiation in the form of light. Until recent years, the light emitted was very weak and was not white. Recent research has solved these problems while maintaining its great advantages: they are very cheap, not fused, their consumption is negligible and virtually eternal duration: about 100,000 hours.This means that a car equipped with LED lights should not ever change a single lamp. It is possible that the mandatory box replacement bulbs to disappear from the law and our glove in the not too distant future. Today Led already being used in car tail lights. Rarely are standard, but we can replace the original Led by pilots that are sold in almost all parts stores. Another great advantage of LED is its great aesthetic possibilities. In the absence of high brightness, it is necessary to add many Led for the pilot light reaching legal measures. We must put a dozen or more, allowing more available in various forms and combinations. Recently a well known manufacturer has unveiled a prototype headlamp low beam made with LEDs. They plan to manufacture in 2008. The multiplicity of points of light is also an advantage in this case, as it provides guidance and distribution of the halo much more accurate. Meanwhile, research continues to get more light and scope. The aim is that the LED can also serve as a beam or even a flexible ribbon. In the U.S., LED headlamps for main lighting functions are already eligible under SAE standards in force there. In Europe and in the territory of validity of Regulation EEC provides equivalent authorization for 2010-2011. The signaling functions in the light (flashing lights, position and daytime running) using LED as currently authorized in both the EEC in effect as in the SAE.
Objective: To bring the correct light to every room
The less we see more focus and you are looking for lighting, better. In the kitchen, fluorescent tubes and easy to clean the bathroom, powerful lights and a screen on the sides of the mirror to avoid shadows in the room, indirect lighting and soft, in the living room, combination of low-light lamps ; in the hallways, wall sconces that illuminate objects, and in the hall, lights off. In the bedroom, lamps. This is the formula to give birth to a home. From there the combinations are many, but there will always be to answer two questions: do we want to shine and what kind of light. Both issues will determine the way of lighting our house, one element which is given scant attention and that, however, defines the space, the environment and even the degree of comfort to a room. Proper distribution of the three types of lighting (general, environmental and timely) is the key to success. It seeks to give visibility, but also achieve the appropriate lighting level for the activity that welcomes every stay can be performed safely and accurately. The less we see more focus and illuminate what you want, you get higher quality of light, and thus greater comfort.Light Types
* General lights stay lit through tubes fluorescent lamps that are directed at the ceiling, halogen or wall sconces. This is a strong but diffuse light.* The ambient lights do not reflect any particular space in the room and illuminate the surroundings. It is a dim looking warm and comfortable through incandescent lamps.
* The search point lights illuminate a particular object in a sharp, intense and indirectly by what the beam looks very closed source.
The right light beam for each room and place
* The kitchen needs a uniform light, either directly placed on the ceiling or on the work area, or both formulas. Being a stay in that light stays on for a long time, are suitable fluorescent tubes, which consume more energy but when you turn them on, they last about 8,000 hours and consumed about 20% less than incandescent bulbs.* In the bedroom, light also plays a very practical function. It does not require an overhead light, unless this is a child's room or playground, then it should illuminate general form from the ceiling. It can combine with atmospheric lighting to decorate the room, with the spotlight of a reading lamp for reading, and spotlights in the area of cabinet or closet.
* The lounge is a place for meeting and relaxation. Sources should be avoided, for they divert attention and dazzle people feel beneath them. The heat is obtained with different points of ambient light through floor lamps that act as general lighting, supplemented with low lighting to avoid glare on television.
* The dining table is seen as a space itself, whether or not in their own room. We must avoid glare central lamp, placing it at a height around 75 cm above the table, in which the bulbs are hidden. The food is achieved receive direct light, but it does not reach the eyes of diners. The ideal is to avoid sticking to the ceiling lights that illuminated the table though, so do the rest of the stay.
* A common error in bathrooms is to place a light on the mirror. What you get are shadows that blur the reflection, which is avoided if the bulbs are on the sides. In this light has to accompany a general lighting with separate switches and, if possible, separately, to choose either option.
* And finally, although the lobby and corridors are seen as places of passage, are therefore no less important. Both have to return a warm light. In the lobby, a floor lamp or table that offers a prop is light enough, in the corridors, should overcome the tendency for recharging with causing ceiling spotlights contrasts of light and shadow, and shine, while energy-intensive . Some sconces on the wall serve to point the way.
Bulbs and ledlights
* Our grandparents unscrewed three bulbs of the chandelier of the room to save energy. The move undoubtedly effective, it is unnecessary and it is precisely the field of consumption which has undergone further evolution Edison's invention.* Fluorescent tubes are designed to stay where it is needed a light for a long time, as the kitchen or workplace. You gain in quality and quantity of light, and although its price is higher than the traditional, due to its low power consumption, pay for themselves quickly. Also used in some hoses.
* Incandescent bulbs, the lifetime, are characterized by issuing a warm and pleasant light. Gone are diminishing gradually until consumed, but can operate approximately 1,000 hours are from 40 to 200 watts.
* The halogen lamps provide an intense white light, are used to transit facilities. Its consumption is less than incandescent, but illuminate the same, but fired very hot. Duran between 2,000 and 4,000 hours.
* The light bulbs are fluorescent lights. They are more expensive, but consume very little, life is long but very fragile. Looking to replace the incandescent bulb.
How much light is needed?
Although the decision on the amount of light that illuminate a room is very personal, you should consult with a specialist not to exceed or fall short. The cardinal location of the rooms and the use made of them largely determine their enlightenment. Of little use be guided by a chart that shows that for a room of 18 square meters 400 watts are needed, otherwise it is contemplated that the room is very flat and very square. Aided by a device that measures the light, the electrician will be responsible to advise us on the strength of light you need a room to be illuminated. But there are no rules. Will the landlord to decide if he prefers bright sun or rather tenuous.Light as a model, some tricks:
* A place with a very low ceiling gives an overwhelming feeling, but will soften if the ceiling is brightly lit. The room will widen considerably, but will decrease its depth.
* If it's a room with high ceilings, not enlighten his height be lowered.
* The more neutral the overhead light, the easier it is to decorate, since the stay is not conditioned by color.