"Price war" LED industry becomes more intense, enterprise how to find a way out?This forces us to do some technical thinking.Collect 12 kinds of LED technology and application, see what's your dish?
Japan's industrial technology research institute announced that with the common chemical industry developed to cover the entire range of visible light LED light source.Two institutions of central wavelength of different multiple leds components and a variety of fluorescent material, developed in the whole range of visible light (380 nm to 720 nm) have sufficient light intensity of the light source.Due to the light source can be used as evaluation standard light source of solid components lighting appliance, therefore the development effort was named "standard LED".According to the results, and no one can be used for lighting appliance spectroscopic measurement, high accuracy of the solid elements and covers the whole visible light range of standard light source.
Given at the scene of the LED manufacturing and development using the "standard" LED, can be the characteristics of high precision of solid components lighting appliance evaluation, is expected to contribute to accelerate product development and improve performance., nichia said in industry, then will promote the production of this new "standard LED".Industry research institute has said that Japan will be further improved in the "standard" LED development using the spectrum of precision measurement technology and research development of surface emitting light and ultraviolet and infrared light metering technology.
Single layer cylindrical LED to produce a single pixel white light
Production of white LED, not USES white phosphor, the phosphor material coating coated in monochrome leds, is red, green and blue leds are mixed together?Researchers at the university of Taiwan but don't think so, they are developing a technology, can from a single layered columnar (tiered - column) white light LED to produce the single pixel (pix).Its basic concept is that the quantum well (quantumwells) embedded In the same fundamental growth, arrange on plate very tight gallium nitride (GaN) and indium gallium nitride (GaN) In nanoscale column (nano - rods).
According to the researchers, who LED array is organic metal chemical vapor deposition (MOCVD) growth of pulse method, can achieve better than the traditional processing techniques of luminous performance.They grow several section of different section size (multi - section) nanometer column, column compared with single section nanometers can show the emission spectrum of the wider, while developing the nanoscale column leds, target which is able to emit from phosphor white light.At the same time, the team is also working on surface plasma enhanced glow, promote efficiency and to avoid attenuation effect (droopeffect), and by increasing the modulation bandwidth the visible light communication at a high speed.
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UV LED technology solar recharge water purification device
Lund university, water resources engineering professor Kenneth?Mr Persson said: "at present there are 750 million people lack access to clean water, the world to provide safe drinking water in a huge challenge, is also one of the most important goal in human."In view of this, he is an engineer Watersprint environmental protection company, established in 2013, and developed a with solar charging and UV LED technology of water purification equipment, the equipment to provide clean water is far more than the smart grid can cover areas.
