Green lighting: broad market prospects for semiconductor lighting

At present, with the development of semiconductor optoelectronic technology, greatly improve the brightness of light emitting diode, prolong the service life, production costs continue to decrease, the semiconductor light source to enter the lighting field, showing great market prospect.

Semiconductor lighting is also called LED, is a light emitting diode, it is made of gallium arsenide, gallium phosphide, gallium phosphide semiconductor etc.. Semiconductor lighting is a major breakthrough in the history of lighting after incandescent lamp, fluorescent lamp, is a kind of direct conversion of electric energy into visible light and radiant energy of light-emitting devices. It is the true meaning of green lighting.

In early 1960s, the world's first semiconductor light emitting diode had been born, has the advantages of small volume, long service life, low safety, energy saving and environmental protection advantages, at the same time as a new type of lighting means to enter the scientist's view. Semiconductor lighting, although it has been more than 40 years, but for a long time, semiconductor light-emitting diode can only emit a bright color, often used in the field of decorative acts as an auxiliary light source. Until the middle of 1990s, the third generation of semiconductor materials Gan breakthrough, as well as blue, green, white light-emitting diode, semiconductor lighting was able to enter the field of daily lighting.

Semiconductor lighting has the advantages of low voltage, low power consumption, high luminous efficiency, long service life etc.. Compared with the traditional incandescent lamp and fluorescent lamp, the utility model can save more than 90%, but the life can reach 100 times of the ordinary incandescent lamp. A semiconductor lamp can be used for more than 50 years under normal conditions. Statistics show that China's annual electricity for lighting is close to 250 billion degrees, if one of the semiconductor lighting, the annual energy saving of about 80 billion degrees, equivalent to the annual power of the Three Gorges power station, the annual output of about 1/3.

Semiconductor lighting is also very environmentally friendly, no ultraviolet and infrared spectra produced by it, no heat and radiation, does not produce too much light pollution and thermal pollution, which belongs to the typical green lighting source. Because the semiconductor lamp has the advantages of energy saving, long service life, maintenance free, easy control, environmental protection, etc., and the semiconductor lighting lamp is scrapped, the relevant accessories can be recycled and utilized. Therefore, the lighting industry generally believe that the semiconductor lighting into the field of general lighting is the trend. In addition, semiconductor lighting can also be combined with the use of wind and solar energy to send light to remote areas.

Including current semiconductor lighting applications: landscape lighting, automotive, backlight, traffic lights, outdoor large screen display, special lighting and military applications etc.. With the development of technology and the decrease of production cost, its application will be more extensive. Scientists predict that, in accordance with the current level of technology and trends in the next 5 to 10 years, semiconductor lighting is likely to become the mainstream of the next generation of lighting products.