LED industry, "price war" increasingly fierce, how to find a way out? This forces us to make some technical thinking. Summary of 12 kinds of new LED technology and applications, to see which is your food?
Can completely cover the wavelength of visible light "standard LED"
Japan's Industrial Technology Research Institute announced that with the Nichia Chemical Industry jointly developed a cover the entire range of visible light LED light source. By using multiple LED elements with different central wavelengths and a variety of fluorescent materials, the two devices have developed light sources with sufficient light intensity throughout the visible range (380 to 720 nm). Since this light source can be used as a standard light source for evaluating solid-state lighting fixtures, the result of this development is named "Standard LED". According to reports, the results appear before, there is no one can be used for solid-state lighting equipment, high-precision spectral measurement, and covers the entire visible range of standard light source.
In view of the LED manufacturing and development of the site using the "standard LED", solid-state lighting devices for high-precision characteristics of the evaluation, and is expected to accelerate product development and improve performance to contribute. In this regard, the Nichia Chemical Industry, said the future will be to promote the "standard LED" production preparation. Japan's Industrial Research Institute, said it will further improve the "standard LED" in the development of the spectrum used in precision measurement technology, research and development of surface light source and ultraviolet and infrared light range of light evaluation technology.
A single layered LED produces a single pixel of white light
Production of white LED, not the use of white phosphor (phosphor) coated material coated monochrome LED, is the red, green and blue LED mixed together? Researchers at the University of Taiwan do not think so, they are developing a technology, from a single tiered-column (tiered-column) LED produce a single pixel (pix) of white light. The basic concept is that quantum wells are grown on the same substrate, and very tightly aligned GaN and In-GaN nanowires are embedded in the same substrate.
According to the researchers pointed out that the LED array is the organic metal chemical vapor deposition (MOCVD) pulse growth method, can achieve better than using the traditional process technology luminescence performance. They have developed multi-section nanorods of different cross-sectional dimensions that can exhibit a broader emission spectrum than single-column nanoplasts. The goal of this multi-section nanocolumnar LED is to emit Out of the phosphor-free white light. At the same time, the team is also working on surface plasmonics to enhance luminescence, improve efficiency and avoid droope effects, and speed up visible-light high-speed communications with increased bandwidth modulation.
New design of polymer OLED lighting products
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UV LED technology solar charging water purification devices
Professor of Water Resources Engineering, Lund University, Kenneth? "There are 750 million people around the world who can not access clean water and a safe drinking water challenge is one of the most important goals of human beings." In this connection, he was co-founded with an engineer in 2013, Persson said. Of the environmental protection company Watersprint, and developed a solar charging and UV LED technology, water purification equipment, the device provides clean water far beyond the smart grid can cover the area.
It is understood that the technology is through UV LED technology and intelligent software and Wi-Fi combined to purify water. Its 12 volt system is very efficient and can be run in a single solar panel. The solar battery can also be charged by itself, so that the portable device can be used also in a rural non-electric area. This compact and portable solar cell station has been placed in rural areas of Bangladesh. The first water purification plant was installed in October last year, and nine water purification plants have been delivered to the Bangladesh project.
Apple VR head display or will use micro-LED display
Last May, Apple acquired the mini LED display technology leader in the industry LuxVue, the outside world is generally considered LuxVue will achieve a breakthrough on the display technology. Apple will use this technology has become a public talk about the topic, but to the present position has no clue. Apple had previously announced 2017 of the iPhone mobile phone screen supply chain will be replaced by OLED, AppleWatch's screen has been replaced by OLED. Micro-LED display in the territory of the Apple Empire where, no doubt even more confusing.
It is speculated that the micro-LED technology is likely to be used for "direct-type display", including applications in augmented reality and virtual reality, such as the first display. EXALOS CEO said that for the next generation of display, micro-LED will be to improve the performance and brightness of the key components. LED micro-display is ideal for use in wearable system, because the LED mini-display has a small space, low power consumption, high contrast and high brightness characteristics. Although the current direction of this advanced technology into fans, but in the near future, will appear in some consumer and professional version of the body.
Ski suits with 7000 Philips LED decorative lights
In a recent video, a team of skiers dressed in 7000 LED lights decorated clothing, from the color spotlights down the ramp down, it was directed at, which is high-tech lighting to the skiing of the gorgeous. It is reported that this 12-minute micro-film shooting in British Columbia and Alaska Golden Alps resort. In order to illuminate the entire mountain slope, the staff used eight 4000-watt headlights and other small lights. Using UAVs and fixed cameras to take pictures of skiers from the slope down the scene.
In fact, this is a micro film to promote Philips Ambilight television. Among them, the ski suit on each piece of Gore Stores fabrics are sewn thousands of LED lights, this fabric is waterproof material and connected to the candy-sized battery. The film took five weeks, costing £ 9,000, at minus 15 degrees Fahrenheit. Although the cost is not small, but Philips hopes in this way to promote its overflowing color television lighting technology superiority, and to show the world how to completely change the human experience.
Silicon substrate project won the National Technology Invention Award
It is understood that the current international LED lighting technology on a total of three routes: sapphire substrate, silicon carbide substrate and silicon substrate GaN-based LED technology (that is, "silicon substrate LED technology") route. Which the first two routes in the industry in turn known as the mainstream technology route and the "noble" line, the core invention patents were the United States and Japan were monopolized. Silicon substrate LED technology is the birth of the meaning of another new path, so that China has the world's third LED lighting technology line, a new light source to break through the barriers to get rid of patent disputes.
In the preparation of high-efficiency gan-based LED on the silicon, has been the goal of academic efforts. However, due to the large lattice mismatch and thermal mismatch between GaN and GaAs, the problem of epitaxial film cracking, poor crystal quality, and poor light extraction efficiency due to substrate opacity has not been solved for a long time. Almost sentenced to death. In fact, as early as 30 years ago, IBM Corporation in the development of silicon substrate LED technology, but "give up halfway" to give up. Chinese researchers in this situation is the technology "picked up." After thousands of experiments, continuous technical research, since 2003, the R & D team has finally made a breakthrough, which has developed a silicon substrate GaN-based LED materials and device technology.
American Museum of Art to install transformative lighting
Into 2016, the US tourists will soon be able to visit the new lighting device under the Brandi Wan River Museum. According to reports, in order to enhance the visitor experience, the museum's six exhibition halls will be installed on the new energy-saving LED lighting track lighting system. In welcoming and providing the best viewing of works of art, lighting is to create a hall atmosphere is a key factor. The new LED lighting system will help to enhance the flexibility of different artworks in the Brindisi Gallery, including the classic paintings by the Wise family of artists and the paintings by American painter Winslow Homer Delicate paper works.
It is said that the new LED lighting system can significantly improve the lighting flawless brightness, and even let visitors like the first time to see these paintings the same. With LED lights to provide better color reproduction, visitors can really appreciate the subtleties of each work of art and color range. In addition, the lamp also helps significantly reduce energy consumption, can help Art Museum to reduce carbon emissions. The entire lighting project work from January 4 this year to mid-March end. This transformative project is funded by CrystalTrust. With this grant money, the museum will also create a new voice navigation system.
Chinese students design two-way lane lights LED model
Recently, by a Huizhou high school students invented LED lights bi-directional lane model, by virtue of creativity has become the school science and technology festival star. In this design, the use of a few LED lights instead of double yellow line on both sides of the opposite direction of the road, making the peak period can freely control the width of the reverse road on both sides, so as to make full use of road resources. The model of a total of 6 lanes, the middle two lanes with three LED lights with separate. Under normal circumstances, the middle of the LED light source to open, two-way three lanes. In the peak period, by turning the lights on and off, the reverse idle lane becomes part of the positive crowded lane, widening the congested roadway and increasing the load capacity of the positive lane.
According to reports, lane change, the first idle lane side of the light band, the signs to remind drivers to change lanes as soon as possible, will be close to the original double-yellow line empty road, after a period of time, the original is the middle of the light zone Close, so crowded road vehicles into the vacant lane change lane. The school's general technical teacher, said the students with very little transformation costs to replace the huge capital investment to achieve road widening and re-planning to alleviate the peak hours of road congestion. And praised the design is very creative, in theory, is also feasible.
Plant plant species cantaloupe yield up to 8 times greenhouse
Changhua University, Department of Molecular Biotechnology, faculty and students, research and development of plant plants to LED light source technology with environmental temperature control, try to grow all kinds of vegetables and fruits. And in the recently announced results: plant plants from the plant cantaloupe, tomatoes and other crops, which planted cantaloupe juicy and high sweetness, yield up to greenhouse cultivation 8 times. President of the University said that the future hope to transfer technology to farmers, create new agriculture, while the school is also for each crop growth characteristics of research and development, and LED as a light source, cost savings.
The school of molecular biotechnology, associate professor, said the traditional melon melon are open-air or greenhouse cultivation, although skilled, but can not be affected by weather production throughout the year, plus cantaloupe pests and diseases, quality varies greatly, more pesticide residues Problem, so try to plant plant. The use of LED light source technology with the ambient temperature control, the kinds of cantaloupe is not only completely without pesticides, each average weight can reach more than 2 kg, sugar content of 16 degrees, a plant can retain three fruits, plant life can reach 1 year, Can be harvested 5 consecutive.
Supports Apple's HomeKit protocol for smart ceiling fans
Recently, HunterFan company in CES introduced two intelligent ceiling fan, in addition to control through the smart phone, but also supports Apple's HomeKit agreement. Both smartphones, named Symphony and Signal, support Wi-Fi connectivity and the HomeKit platform for voice control via Apple's Siri voice assistant. In addition to App remote control, but also by Geographic fences or scenes HomeKit control conditions, allowing users to leave the door after setting the ceiling fan automatically shut down.
In addition, these two products can also support HomeKit platform with other smart home products integration, including the thermostat, including intelligent home complete control platform. For example, when the smoke detector detects smoke, the ceiling fan will automatically start to help air circulation, and activate the built-in LED lighting system. Symphony and Signal are 54 inches in diameter, built-in high-quality motor and LED lighting.
Both the alarm clock and lighting to provide a clever "foot pad"
This is a practical and interesting application of the invention, called Ruggie's "alarm clock pad", when the light foot on the mat, the lamp on the mat will be lit up as a night light to use and display the current time. After 20 seconds, the lamp will turn off automatically. With this feature, the evening on the toilet when the foot on the foot pad, can provide a weak lighting. At the same time, most people stay in bed for the troubles, the mat will shout, only to really sit up, and feet on the mat on the foot for three seconds will stop.
The pad material is a slow rebound in the memory foam, stepping on the feeling very comfortable, and get up time on the floor, do not worry about the floor too cold. Users can either use USB charging, can also be connected to the computer via USB, and drag any song to the "foot pad" folder, set to alarm. The main designer of the foot pad is the name of WinsonTam Hong Kong people, he and his team spent eight months to develop this "wisdom" products.