Which of the 12 new LED technologies and applications is your dish?

LED industry "price war" is becoming increasingly fierce, how should enterprises find a way out? This forces us to think about technology. Summarize 12 new LED technologies and applications to see which is your dish?

"Standard led" with full visible wavelength coverage

Japan Institute of industrial technology announced that it has jointly developed LED light source covering the whole visible light range with Nippon chemical industry. A variety of light sources with different wavelengths (720nm ~ 380nm) have been developed. Because this kind of light source can be used as a standard light source for evaluating solid-state lighting appliances, the development result is named "standard led". It is revealed that before this achievement appeared, there was no standard light source that could be used for high-precision spectrometric measurement of solid-state lighting appliances and cover the entire visible light range.

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In view of the fact that the "standard led" can be used in the field of LED manufacturing and development for high-precision characteristic evaluation of solid-state lighting appliances, and it is expected to contribute to accelerating product development and improving performance. In this regard, Nichia chemical industry said that it would promote the mass production preparation of the "standard led" in the future. Japan's Industrial Research Institute said it would further improve the spectral precision measurement technology used in the development of "standard led", and research and develop the surface emitting light source and the light source evaluation technology in the range of ultraviolet and infrared light.

Single layered cylindrical LED produces single pixel white light

To make white LED, either white phosphor material is coated on monochrome LED, or red, green and blue LED are mixed together? Researchers at Taiwan University, however, don't think so. They are developing a technology that can generate pix white light from a single layered column led. The basic concept is that quantum wells are embedded in GaN and InGaN nanorods which are closely arranged on the same substrate.

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According to the researchers, those LED arrays are fabricated by pulse growth method of organic metal chemical vapor deposition (MOCVD), which can achieve better luminous performance than traditional manufacturing technology. They have grown multi section nanorods with different cross-section sizes, which can show a wider emission spectrum than single section nanorods. The goal of developing this kind of multi section nanorod LED is to emit phosphor free white light. At the same time, the research team is also developing surface plasmons to enhance luminescence, improve efficiency and avoid the drop effect, and to promote high-speed visible light communication by increasing bandwidth modulation.

New design of polymer OLED lighting products

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UV LED technology solar charging water purification device

Kenneth, Professor of water resources engineering at Lund University? "At present, 750 million people in the world do not have access to clean water. Providing safe drinking water is a huge challenge and one of the most important goals of mankind," Persson said In view of this, he and an engineer jointly established watersprint, an environmental protection company, in 2013, and developed a water purification device using solar charging and UV LED technology, which can provide much more purified water than the area covered by the smart grid.

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It is understood that the technology is to purify water quality by combining UV LED technology with intelligent software and Wi Fi. Its 12 volt system is very efficient and can operate in a single solar panel. Solar cells can also charge themselves, so the portable device can also be used in rural areas without electricity. This compact and portable solar cell station has been installed in rural areas of Bangladesh. The first water purification unit was installed in October last year, and nine more have been delivered to the Bangladesh project.

Apple VR head display may adopt Mini LED display

In May last year, after Apple acquired luxvue, a leading company in the micro LED display technology industry, it was widely believed that luxvue would achieve a breakthrough in display technology. How Apple will use this technology has also become a popular topic, but so far there is no clue about its location. Apple has previously announced that the iPhone screen supply chain in 2017 will be replaced by OLED, and the screen of Apple watch will also be replaced by OLED. Where the micro LED display is in the territory of Apple empire is undoubtedly more complicated.

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It is speculated that the micro LED technology is likely to be used in "direct projection display", including in the field of augmented reality and virtual reality, such as head display. The CEO of exalos said that for the next generation of displays, micro LEDs will be key components to improve efficiency and brightness. The ideal use of LED micro display is for wearable system, because led micro display has the characteristics of small space, low energy consumption, high contrast and ultra-high brightness. Although the fate of this advanced technology has become a mystery, in the near future, it will appear in some consumer and professional products.

7000 Philips LED decorative lights on ski suit

In a recent video, a group of skiers, dressed in clothes decorated with 7000 LED lights, slide down a slope illuminated by color spotlights. Some people point out that this is the brilliance of high-tech lighting for skiing. It is reported that the 12 minute micro film was shot in British Columbia and Alaska golden Alps resort. In order to illuminate the entire huge mountain slope, the staff used eight 4000 Watt headlights and other small lights. The scene of skiers sliding down the slope was captured by UAV and fixed camera.

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In fact, it's a micro film to promote Philips's Ambilight TV. Among them, thousands of LED lights are sewn on each piece of galtex fabric on the ski suit, which is waterproof and connected with batteries the size of candy. It took five weeks to shoot at minus 9000 degrees Fahrenheit. Although the cost is not small, Philips hopes to promote the advantages of its colorful streamer TV lighting technology in this way, and show the world how light can completely change people's experience.

Silicon substrate project won National Technology Invention Award

It is understood that there are three international LED lighting technology routes: sapphire substrate, silicon carbide substrate and silicon substrate gallium nitride based LED technology (namely "silicon substrate LED technology"). The first two routes are called the mainstream technology route and the "noble" route in turn, while the core invention patents are monopolized by Japan and the United States. The significance of the birth of silicon substrate LED technology is to open up a new path, so that China has the third LED lighting technology route in the world, break through barriers with a new light source attitude, and get rid of patent disputes.

The fabrication of GaN based LEDs with high light efficiency on silicon has always been the goal of the academic community. However, due to the large lattice mismatch and thermal mismatch between silicon and Gan, the epitaxial film cracks, poor crystal quality, and low light output efficiency caused by opaque substrate have not been solved for a long time. The GaN based LED route on silicon substrate is almost sentenced to death. In fact, as early as 30 years ago, IBM in the United States was developing silicon substrate LED technology, but "halfway" announced to give up. It is in this situation that Chinese researchers "picked up" this technology. After thousands of experiments and continuous technical research, since 2003, the R & D team has finally made a breakthrough in the development of silicon substrate GaN based LED materials and device technology.

Installation of transformative lighting in American Museum of Art

In 2016, American tourists will soon be able to visit the brandivan River Art Museum with new lighting devices. According to reports, in order to enhance the tourist experience, all six pavilions of the museum will be installed with a new tracking lighting system of energy-saving LED lamps. Lighting is a key factor to create the atmosphere of the exhibition hall in terms of welcoming guests and providing the best viewing effect of artworks. The new LED lighting system will help improve the flexibility of lighting for different works of art in the brandy River Gallery, including classic paintings by the wise family of artists and delicate paper works by American artist Winslow Homer.

It is said that the new LED lighting system can significantly improve the flawless brightness of the light, and even make tourists feel like seeing these paintings for the first time. With the better color reproduction provided by LED lights, visitors can really appreciate the subtleties and tonal range of each artwork. In addition, this kind of lamp also helps to reduce energy consumption significantly, which can help the art museum reduce carbon emissions. The whole lighting project was completed from January 4 to mid March this year. This transformative project is funded by crystal trust. With the aid of this subsidy, the museum will also create a new voice guide system.

Chinese students design led two way Lane model

Recently, led two-way lane model invented by a senior three student in Huizhou has become a star in the science and technology festival of the University. In this design, several LED light strips are used instead of double yellow lines to distinguish roads with opposite driving directions on both sides, so that the width of reverse roads on both sides can be freely controlled in peak period, so as to make full use of road resources. There are six lanes in the model, and the middle two lanes are separated by three LED lights. Under normal circumstances, the LED light source in the middle is turned on, with 3 lanes in each direction. In the peak period, the reverse idle lane is turned into a part of the positive congested lane by turning the light band on and off, so as to widen the congested road and increase the load capacity of the positive lane.

According to the introduction, when changing lanes, first make the light strip on one side of the idle Lane on, remind the driver to change lanes as soon as possible through the notice board, empty the road close to the original double yellow line, and after a period of time, turn off the light strip in the middle, so that the vehicles on the crowded road can change lanes and enter the empty lane. The general technology teacher of the school said that the student replaced the huge capital investment with very little reconstruction cost to realize road widening and re planning, and alleviate the road congestion during peak hours. And praised the design is very creative, theoretically feasible.

The yield of Hami melon planted in plant factory can reach 8 times of greenhouse

Teachers and students from the Department of molecular biotechnology, Changhua Daye University, developed a plant factory, and tried to grow all kinds of vegetables and fruits with LED light source technology and environmental temperature control. And recently announced the results: Hami melon, tomato and other crops are planted by the plant factory, of which Hami melon is juicy and sweet, and the yield can reach 8 times of greenhouse planting. The president of Daye University said that in the future, he hopes to transfer the technology to farmers and create new agriculture. At the same time, the University also carries out research and development according to the growth characteristics of each crop, and uses LED as the light source to save costs.

According to the associate professor of Molecular Biotechnology Department of the University, Hami melon is traditionally cultivated in open air or greenhouse. Although the technology is proficient, it can not be produced all year round due to the influence of weather. In addition, Hami melon has many diseases and pests, uneven quality and pesticide residues, so we try to plant it in a plant factory. Using LED light source technology and environmental temperature control, the Hami melon does not need pesticides at all. The average weight of each melon can reach more than 2kg, and the sugar content is more than 16 degrees. One plant can retain three fruits, and the plant life can reach one year. It can be harvested for five consecutive periods.

Intelligent ceiling fan supporting apple homekit protocol

Recently, Hunter fan company launched two intelligent ceiling fans on CES, which not only control through smart phones, but also support Apple's homekit protocol. The two intelligent ceiling fans named symphony and signal support Wi Fi connection and homekit platform, and can be voice controlled through Apple's Siri voice assistant. In addition to app remote control, it can also control the conditions through the geographical fence or scene of homekit, which is convenient for users to set the ceiling fan to turn off automatically after leaving the door.

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In addition, these two products can also be integrated with other smart home products supporting homekit platform, including thermostats to form a complete control platform for smart home. For example, when the smoke detector detects smoke, the ceiling fan will automatically start to help air circulation, and activate its own LED lighting system. It is reported that symphony and signal are 54 inches in diameter, with built-in high-quality motor and LED lighting function.

Smart footmats with alarm clock and lighting

This is a practical and interesting invention and application, named Ruggie's "alarm pad". When you step on the pad with your feet, the light on the pad will light up, which can be used as a night light and show the current time. After 20 seconds, the light will go out automatically. With this function, when you go to the toilet at night, you can put your foot on the pad to provide weak lighting. At the same time, in view of the trouble of most people staying in bed, the foot pad will also shout. Only when they really sit up and step on the mat for three seconds will they stop.

The material of the foot pad is a memory foam that can slowly rebound. It feels comfortable when stepping on the floor and does not have to worry about the cold weather on the floor when getting up. Users can either charge with USB or connect with the computer through USB, and drag any song to the "foot pad" folder to set it as alarm ring. Winson Tam, a Hong Kong native, and his team spent eight months developing this "smart" product.