The LEDs could take precedence over other technologies by 2014.
today there are light-emitting diodes (LED) in many applications in everyday life: lighting leads with 35%, followed by mobile devices (30%) and signaling and signage (18%). How LEDs have they started and where are we in 2012?
In October 1962 the physicist Nick Holonyak, employed at General Electric, gave birth to the LED having a ratio of Physics American Institute on the creation of red light spectrum based on LED technology. Holonyak’s discoveries have led to the LED display commercial introduction in 1964. For ten years, they remained very costly. Moreover, only red LEDs were available. In the mid 70s, their main application was pocket calculators and digital watches where they were used to operating indicator. Since then, their scope has expanded to the optical technologies and semiconductor materials. LEDs have also gained in light intensity and color ranges: red, orange, yellow, green and finally the blue, in the 90s it was not until 1991 that the white LED lighting has been developed point by Japanese professor Shuji Nakamura. A wide spectrum of colors is now available as well as a significantly increased light intensity and especially improved energy efficiency.
LED: more light
It is said that for each decade, the manufacturing cost per LED bulb produced will be divided by 10, so that the emitted light will be, it multiplied by 20. The use of LEDs for LCD monitors is now widely used in applications consumer mobile as mobile phones, digital cameras, MP3 players and TVs. LEDs have, in fact, big advantages in terms of cost, energy consumption, range of color and visualization through the expanded angle light scattering.
OLED: new LED technology
Another important development of the LED is the development of organic LED technology, or OLED, which brings a new dimension to lighting. Architects and designers can use OLED technology to create an atmosphere without hot spot lighting, uncomfortable glare or light intensity. OLED modules are particularly suitable for lighting show and environments such as nightclubs and bars. They offer soft lighting, soft lighting and a uniform distribution of light from the panel.
Based on Josephnightlights, the LED projection lights have become the norm in outdoor public lighting, especially traffic lights, road signs and other electronic display panels. The automotive industry replaces incandescent lamps by LEDs, which are particularly suitable for electric and hybrid cars they stretch 10 km autonomy.
The lighting aquariums, volaillères and horticultural industries are also areas where we soon expects substantial growth in the use of LEDs. For example, plants that are very sensitive to certain wavelengths of light, see their increased photosynthesis when exposed to the blue and red light.
It is also expected that LEDs become a factor of saving energy prominent in the coming years with the gradual disappearance of incandescent lamps (banned production and imports since September 2012), halogen and CFL. The LED should in parallel be available soon at a price that will make them likely to dominate the lighting market. Analysts predict that LED lighting will dominate the lighting market in 2014.
Thanks to Jeanine Chrobak-Kando, Business Development Manager at Verbatim.