Interpretation of the LED industry status and technical development

In today's fast-changing DianQiHua era, LED as a light source, has penetrated into every aspect of our lives. Actually LED only born in the last century 60 s, shorter than we time of the founding of new China. As a landmark technique, it is not a long time, but it with the rapid development of electronic industry, LED the field of decoration in the instructions and not only have great development, also opened a new chapter in the field of lighting, one of the undisputed become a mainstream of the next generation of lighting products.

early LED by constitutes the oneness of the p-n junction doping material and technical limitations, we can only get less color such as yellow, red light. At this time of the LED because of the low light efficiency, and small power reason, only have the function that instructions, also someone made a bold attempt in the field of decoration, and achieved good effect. Later because of gallium arsenide ( GaAs) , gallium phosphide ( GaP) And phosphorus gallium arsenide ( GaAsP) The emergence of a batch of new materials, such as the led light source color not only becomes bright-coloured rise, other indicators are also improved. Especially the birth of white LED, but also established its dominance in the field of lighting in the future. The present situation of the LED

decomposition, in fact, the current LED also faces some problems in the field of lighting. It was able to cause the attention of people, mainly because it is energy saving, environmental protection, long life, can use safe low voltage lighting and the characteristics of the modelling diversity, etc is unmatched by traditional lamps and lanterns, but led lighting products currently on the market due to its use of materials, manufacturing industry and cost factors such as limit, can not fully show the characteristics. These products and miscellaneous beside. By using the environment to distinguish the main indoor and outdoor lamps and lanterns, such as outdoor lamps and lanterns is mainly on the street lamp, landscape lamp, used to shoot the light, car light, wash wall lamp, floodlight, etc; Indoor lamps and lanterns are PAR lamp series, GU ( 5. 3, 10) ( MR16) Series, fluorescent lamp series, Give priority to with T8) , candle lamp series, tube light series, series, wall lamp, ceiling lamp, wall lamp, such as track light and so on. According to the direction of the light and can be divided into directional light and non directional light. Unfortunately, however, no matter look from the appearance or use the lamps and lanterns, we can find the shadow of traditional lamps and lanterns. In other words, in the current field of lighting, the LED is not locate for oneself, not completely belongs to own thing. This serious impact on the development of LED in lighting field.

LED is also facing some problems in terms of technology. Such as heat dissipation, according to the related research and many years working summary, at present, can make the electric - a good light source design Light conversion efficiency reached 30%. But there are still 70% of electrical energy is converted into heat. Take a 5 w led bulb light, for example, assume that drive efficiency is 80%, the power of the light source will get 4 w, - according to 30% of the electricity Light conversion efficiency, there are still 2. 8 w electrical energy into heat energy, and a drive plate in front of the loss of about 1 w, 5 w bulb light to produce 3. The 8 w heat energy. This is our design of the led lamps and lanterns is the main reason for the high temperature.

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OFweek semiconductor lighting network