US university is developing the new UV LED lights that can be used for portable devices
12.09.2013.According to reports, the Ohio State University is developing a new type of UV LED, it could bring us more and more portable lamps and low-cost technology .
Ohio State University
The LED whose patent is pending has created the UV wavelength that is more precise than commercial LED ultraviolet on the market and can operate at a lower voltage , which is more brevity than other experimental method that create an accurate ultraviolet wavelength. The LED is suitable for the chemical sensing applications , disinfection applications and UV curing applications . To be further developed, it maybe can provide UV laser eye surgery and computer chip manufacturing with source one day.
In the ” Applied Physics Letters “, the Ohio State University engineers describe how to create a LED. Coauthor from the semiconductor nanowires that mixed with the gadolinium (Gd) that is the rare earth elements, Roberto Myers, Associate Professor of Materials Science and Engineering of the Ohio State University, said: “The unique design allows engineers to give nanowires energized to activate the rare earth metals , and this is that our team previously has not thought, as far as we know, no one has drived the electronics through the gadolinium inside the LED , we just want to know what will happen next . ”
Gadolinium is not used to produce high-quality UV LED, but in order to carry out a simple experiment probing the basic properties of a new material they are studying , the material is called gallium nitride . In this experiment, the doctoral Thomas Kent noted that the intense emission lines of the gadolinium can control the current . Different elements that are excited emits fluorescence at different wavelengths , the fluorescence emitted by gadolinium is most intense . Engineers found that gadolinium doped nanowires shined ultraviolet light in some specific frequencies. What is not unusual that the different materials activated produce light, but the material is difficult to be activated under ultraviolet light-emitting. light emission that only other reported gadolinium can be electrically controlled takes more than 250V voltage. Ohio State University research team found that the same effect can be produced at low operating voltage that is about 10V in the structure of the nanowire LED. It is difficult to compact the high-voltage apparatus , because the voltage of nanowire LED is only 10V , which is helpful to the portable device .
As for the cost , Kent pointed out that their team made the LED grew on a silicon standard wafer, it is cheaper and easier to apply to large-scale industrial production .
The team is currently trying to maximize the efficiency of UV LED , Ohio State University ‘s technology commercialization and knowledge transfer office will issue a license to the design industry and the production of special gadolinium doped nanowire approach.
There are the United States National Science Foundation (NSF) and the Ohio State University ‘s new materials center sponsoring this study.
LED that is the light-emitting diode and the third generation lighting is a semiconductor lighting, which is constantly being developed and innovated by us, especially from the 20th century to the 21st century, the global environment is deteriorating , LED lighting due to its outstanding energy-saving and environmental protection is attracting widespread attention.
Nowadays,the LED flood light such and LED tube light is most widely used as the representatives of the home lighting and decorative lighting in daily life,the LED tube light enjoys a great popularity in our corridor, restaurants, shopping, leisure and entertainment, galleries, exhibition halls and other indoor environments everywhere, the LED flood light is mainly used in city squares, parks, stadiums, the facades of large commercial buildings and hotel, stage, waiting rooms, airports etc. where need higher brightness lighting to illuminate, Lead Lighting adopts high brightness SMD as the light source of the LED tube and highly integrated and high brightness COB as the light source of the LED flood light, which fully guaranteed stability and soft light of the LED tube light and octahedron breadth and brightness irradiation range of the LED flood light, while the low voltage constant current driver current the alternating into direct current so that improve energy efficiency and reduce the waste heat energy and stroboscopic effect excite the human eye, the most important is that the LED lighting without adding mercury and other heavy metals harmful to our body and pollution the environment, that’s why the LED light is famous for energy-saving and environmental protection. Loginhttp://www.ledclan.com to learn more features and uses of the LED tube light and surf www.lead-lighting.com to know more awesome LED floodlights and other LED lighting.
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Oznake: united, states, national, science, foundation, ohio, state, university, led, flood, light, materials, and, engineering, gadolinium, applied, physics, letters, rare, earth, elements
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Japanese builders scramble "LED garden"
23.08.2013.
Don't want a piece?the builders layout complete industrial chain of farm household
Taking advantage of the building experience accumulated for long time is to broaden revenue streams, "LED garden" Builders are also attracting attention in Japan, which is expected to become a major new business builders.
"Obayashi" after next year, the company plans to take the "LED garden" as an opportunity to formally enter agriculture. According to reports, the company is currently working with the Chiba University to jointly research, the set of equipment systems of the "home farm" is not just introduced to the market in future, , the company will personally operators own vegetable plant and sell their own cultivated vegetables.
Nishimatsu Construction and Tamagawa University jointly launched "LED garden" project last year, planning to increase five-fold of the production capacity of the lettuce vegetable, from the current daily capacity that is 600 to 3000. Produced vegetables will be sold in Tokyo supermarket and other places, and expected that this project will soon bring the real money to the company.
Whether the Family farms can expand,the Japanese construction will usher industry exams the next few years
According to the survey of the "Fuji economy, " that is the market research company, the size of the Japanese domestic plants manufacturer where the artificial light is used is expected to reach 19, 000 square meters in 2020, this figure will be 3.7 times more than that of 2011.
However, according to the study report of the "Yano Economic Research Institute, " that the introduction of plants and plant operating costs as well as the cultivation techniques, etc., will be stumbling block that whether the market is able to be expanded.
Ascendant "LED garden" can be boom everywhere or not, the next few years will be a critical period when the extent of Japan's major companies strive is tested.
The LED lighting that has been tightly integrating the agriculture contribute to the growth of vegetables, which indicate LED lighting is closer to our lives, it can not only be used as lighting ,but can be closely related with agriculture designart and so on to constantly innovate, we can see that LED lighting must replace traditional lighting sooner or later, meanwhile, LED outdoor lighting such as LED flood light because the light is soft and has the advantages of Octagon range of lighting and bright light, waterproof, dustproof, resist shock, high-definition is popular in our squares, parks, stadium, railway stations, large commercial buildings and hotel exterior, fountain, high-altitude operations, and other open spaces, Lead lighting has been adopting qualified l LED chips, heat sinks, driver, housing and other materials to constantly improve the production and R & D team to create more eco-friendly and affordable LED lighting, that is closer to our life, log www.lead-lighting.com to experience more energy saving LED lighting.
Oznake: chiba, tamagawa, artificial, led, light, university, japan, flood
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