作者：Blade

The United States developed super high flux led

The United States developed super high flux ledThe United States IBM and Duke University researchers recently succeeded in single wall carbon nanotubes ( single-walled carbon nanotube ), a high brightness light. They let the nano carbon tube part hanging in the silica substrate, led high bay  and the single carrier operations ( unipolar operation ), super high flux led, which results in carbon nanotubes suspended and supported to form the connecting surface of a high brightness light.

Researchers in the chemical vapor deposition ( chemical vapour deposition ), the diameter of 2to 3nm nano carbon tube horizontally on the fluted structure ( trench ) silica substrate, super high flux led, so that the carbon tube part across the top groove, adding palladium ( palladium ) as the source and drain, in the single carrier transmission conditions (i.e., the gate voltage of less than about3.1 volts and can cause the hole transmission, the gate voltage is greater than – 2.1 volts would trigger electronic transmission ), super high flux led, carbon nanotubes are substrate supporting and hanging part formed by the junction of emits infrared light, the luminous efficiency in the3 A current about every square nano107 a second photon, is a large area of LED105 times higher.

Researchers believe that the nano carbon tube light-emitting reason, lies in the nano carbon tube is supported and suspended part of the ground near the surface, energy band bending, the electric field can accelerate the carrier, and then generate excitons ( exciton, namely bound pairs of electrons and holes ); when the electron-hole pairs when combined with will shine. super high flux led. The researchers calculated, the excitation efficiency is respectively from two ends of electron and hole injection combined with efficiency more than 1000 times.

This study proves that in the low dimensional nanostructures, electron and hole has the very strong attraction,  super high flux led, carrier and atomic vibration coupling is weak, it also demonstrated for the first time in one-dimensional systems, molecular heat carrier ( high energy carrier ) impact excitation ( impact excitation ) phenomenon.

Since carbon nanotubes is issued by the1-2/ M wavelength of infrared light, so it has application in the optical communication potential, at the same time, the emission wavelength can be tuned by changing the diameter of carbon tube to be adjusted. In addition, super high flux led, the future of these carbon nanotubes luminous body can also be associated with the same carbon tube or silicon electronic components integrated on the same chip, to become the new electronic or optoelectronic components.

LRC mr16 light fittings–the development of a new type of testing equipment

LRC mr16 light fittings--the development of a new type of testing equipmentRensselaer Institute Lighting Research Center ( LRC ) scientists recently in light is how they affect the human research progress. LED high bay, The scientists also developed a which can simulate the human mechanism model, the model is able to simulate various human circulatory system, human circadian rhythms, mr16 light fittings, such as body temperature, hormone secretion, alertness and sleep mode. Center for the study of research mainly focus on the human brain research.

The physiological cycle of light conversion model can be provided for researchers to test and to explore building a light influence on human basis. LRC research director Dr . Mark Rea said” the model in two aspects the enormous role, on the one hand, in theory, mr16 light fittings, it is to the human nervous mechanism and simulation plays an important role; on the other hand, the actual operation, it is to predict different sources give different effects of human circulation system is very important.”

Rea said, the model can be used as optical multi body simulation research on the influence of it, mr16 light fittings, as people on the same theory visual photometry. Light quantification for stimulation of the human circulation system in exploration is how to regulate the body mechanism illumination of far-reaching significance. This study also need to consider the spectrum antagonism. mr16 light fittings. When the wavelength of the light beam ( yellow light ) is added to the short wavelength light beam of white light on the human body, regulating effect will be reduced.

The LRC researchers reveal, this model is based on the recently published electrophysiological and neuroanatomical theory. Using this model, the researchers were found to directly reflect the light of the retinal nerve, is usually said to photosensitive retinal ganglion cells, mr16 light fittings, namely ipRGCs, other findings include a photo organization.

The LRC researchers will further improve the model, the experimental results for the practice.

New technology of flat panel display test mains downlight

New technology of flat panel display test mains downlightThe flat panel display ( FPD ) active element feature analysis is similar to the semiconductor integrated circuit testing. However, in order to optimally improve LCD, OLED and LEP testing speed and precision, the need for the existing parameter testing system, mains downlight, connecting cable and test method for appropriate modifications.

No sequence silicon LCD testing should resolve the ultra-low current measurement mains downlight

No sequence silicon ( a-Si ), active matrix liquid crystal diode ( AMLCD ) with traditional techniques, which still dominate the market, such as mobile phones, as well as most of the TV desktop display. Although the a-Si thin film transistor ( TFT ) is a new generation of low temperature silicon polymer ( LTPs ) LCD speed smaller, larger, need more external circuit, led high bay now in its fifth generation and sixth generation products, mains downlight, using the a-Si basal technology to create a larger display, manufacturers are trying to cut costs method of.

Cost is the main consideration, so the testing time must be reduced to the minimum, generally in the product stage need to test parameters are: Id-Vg scan, turn-on voltage of Vth, forward current,  mains downlight, leakage current, IL switch ( response time ), contact impedance and capacitance.

These measurements are in LCD flat outer rim surrounding a test element group ( TEGs ) on the. Sometimes, mains downlight, also measured some work pixels to check In-dium / Tin oxide ( ITO ) conductive layer properties.

Typical system includes the confirmation of FPD in the active part properties, including DC source measurement unit ( the source table ), switch matrix ( can use a set of equipment for testing a plurality of devices ), the probe station and a cable connection. Due to the enormous size of flat, mains downlight, FPD product test equipment is quite large, and is highly automated.

OSRAM launches mini led studio lighting

OSRAM launches mini led studio lightingsmall–OSRAM mini spiral energy-saving lamp features. Because the diameter of only 7.6mm T2diameter glass tube, OSRAM mini spiral energy-saving lamps energy-saving lamps OSRAM became the youngest member of the family. Mini spiral energy-saving lamp volume, than with the power of the traditional U type energy-saving lamp is reduced by 50%, led studio lighting, its dimensions basically and spherical or candle incandescent lamp a Like, can directly replace and do not need to worry about the size problem.

Statistics show that: the use of incandescent lamp the overwhelming majority of customers choose E27lamp, incandescent lamp and candle basic customer choose E14lamp. LED high bay  In order to meet customer demand, OSRAM mini spiral energy saving lamp provides three kinds of power, led studio lighting, two color, two caps in all twelve kinds of specifications for customer choice. OSRAM also according to the customer ‘s habits, two lamp provides two different shapes: the E27lamp and incandescent lamp shape similarity; E14lamp and incandescent lamp similar shape candle.

The introduction of energy-saving, OSRAM mini spiral energy-saving lamp series, in the energy field beyond the previous similar products, led studio lighting,  light efficiency is up to 63lm / W. Compared with an incandescent lamp energy saving more than 80%, and the traditional U type energy-saving lamp compared to saving up to 17%, led studio lighting, all can achieve national green lighting efficiency. In1 1W mini spiral energy saving lamp for example, replacing the 60W incandescent lamp after the effective life period can save more than200 yuan charge of electricity. 6000 hours of use, led studio lighting, electricity 0.7yuan / degree OSRAM mini spiral energy-saving lamp energy saving light, delicate appearance, particularly suitable for a variety of wall lamp, Tongdeng, chandeliers and other small lamps,led studio lighting, is to replace the ordinary spherical and candle incandescent lamps are preferred.

Henderson semiconductor posts led street lights bangalore

Henderson semiconductor posts led street lights bangaloreAccording to the Nanjing Henderson Technology Company Limited Zhou Ming introduces, our country electric power consumers, in addition to the large and medium-sized enterprises, the municipal lighting power consumption ( such as street lights, neon lights, advertising light boxes and so on ) are also very amazing. The current municipal selected lamps have short service life, led street lights bangalore, loss of large, high rate of repair deficiency. According to the analysis of the relevant departments, an ordinary street lamps lighting time of a day is 12 hours, the power consumption of about 3 degrees, year need to charge1000 yuan; street lamp high damage rate, resulting in municipal relevant departments need to invest a lot of manpower and material resources to repair. New semiconductor lighting will gradually replace the traditional street. led street lights bangalore, Semiconductor technology afterwards causes microelectronics after the industrial revolution, and the birth of a new industrial revolution — a revolution in lighting, whose symbol is the semiconductor lamp will gradually replace incandescent and fluorescent lamp. At present, led street lights bangalore, our country increasingly serious energy crisis, and semiconductor lighting it can achieve substantial power-saving purpose, is expected in 2010 China’s electricity consumption will reach2.7 trillion-degree, lighting electricity consumption will exceed 300000000000 degrees. Because the same brightness, semiconductor lighting electricity consumption is only1 of the incandescent lamp / 10,1/ 3as long as the incandescent lamp is semiconductor lights replaced, led street lights bangalore, each country will be able to save electricity nearly 100000000000 degrees, the equivalent of a project of the Three Gorges power generation. As the semiconductor lighting has the advantages of energy saving, environmental protection, long life advantages, promotion of semiconductor lighting will give our country to implement the scientific outlook on development, building a conservation-minded society brings far-reaching influence, at the same time, it will affect China’s energy strategy.led street lights bangalore, Semiconductor lighting leading enterprises — Nanjing Henderson technology shares in the company is with the market oriented, in order to display and semiconductor lighting for the leading products of high-tech enterprises, providing high-quality information display system, led high bay the application of high-power LED products and semiconductor lighting engineering solutions. The company has a strong technical team of Dr. Liang Bingwen CTO, which the company is the Ministry of science and technology, national semiconductor lighting project expert, national semiconductor lighting project tackles key problem plan major project management office and as a consultant, national semiconductor lighting industrial technology development and strategic studies expert team, led street lights bangalore, responsible for the completion of the national semiconductor lighting in long-term technology development planning work.

South Korea SSCled street light casing has more colors

South Korea SSCled street light casing has more colorsWhite LED market has gradually increased, Seoul semiconductor white LED has now entered the world top three. Seoul semiconductor company in various applications have patent protection for white LED. Seoul semiconductor companies than any high power white LED ESD (20000V ) LED has better performance, led street light casing, the maximum range of color temperature (2650k ~10000K ), the best reliability ( used in 350mA70000 hours after the lumen output to reduce50%. ) The world’s most bright warm white light LED—–120lumen1 watt warm white LED, led street light casing, Power-N series, only the Seoul semiconductor company5 Watt warm white light LED1400mA can send 120lumens and can replace the incandescent lighting in Europe and the United States of america. And Seoul semiconductor company of power white LED than incandescent and halogen light source is more efficient for most. Especially Z power LED can emit more than40 lumens per watt than on the market now, led street light casing, the LED has better efficiency.

Products with multiple colors of Seoul semiconductor companies have raised for the backlight LED properties to NTSC standard can make the show more colors. This product than conventional white light having a wide color gamut, led high bay,  this is because the Seoul semiconductor company fluorescence technique. Rich red and blue wavelengths so that the LED has higher color. led street light casing, The market application in flash of white light LED FCW100 is minimal for flash, mobile phones and other applications with minimal LED. From a2 x1.5 x0.45mm package size and in the 175mA issued by 3500mcd. led street light casing. By using the FCW100, mobile phone manufacturers can produce smaller size products.

New led lighting 12v alarm fireflies

New led lighting 12v alarm firefliesThe DreamTime LED clock, this bell very confusing, looks like wildfire of the night (pyramid), the fluorescence shining like a group of fireflies in Juezhepigu guess what timekeeping? Issued by the rhythmic sound a bit like the old pendulum clock, led lighting 12v, can be timed to chime, feel free to chime requires three AA batteries, a $ 39, or expensive as a plaything.
So, facing the verdant gardens and gorgeous evening scene of the dinner is a charm.The dinner table is usually ultimately, a bowl of sauce, led lighting 12v, this sauce is their own home to do.February 2 rise of the dragon one day, too, the wind is still raging, do the work of the sauce. Housewives cooked soy beans, mashed it, wait for it to cool thoroughly, then knead into the shape of a brick wrapped in a newspaper layer after layer of them, led lighting 12v, placed them. This sauce after the Ching Ming, dry naturally, it who has brittle newspaper torn butter block broke into the vat where, against the Sheung Shui and salt, butter began the process of fermentation. Sauce like the sun, so most people are not vat on the window in front of central is resting in the garden, led lighting 12v, that is to accept the sun’s place. Sun and wind is really a good thing, before long, the sauce to change the color changed from light yellow to butter yellow until golden and the sauce naturally reconcile even the scent vaguely drifted out, some greedy slander people can not stand it the temptation to not wait for it to fully fermented, led high bay containing it to eat. Summer dinner table, the dominant is the sauce. Of those dipping sauce dishes from two sources: the wild and garden. The food of the field is the natural wild vegetables, such as Ming leafy vegetables the pheasant arm, led lighting 12v, water celery, duck mouth, old Sang celery and Artemisia bud. Usually wild vegetables in boiling water, boiled, so that they play a roll in boiling water, remove to cold water pull, grip did eat. Wild vegetables, my favorite is the old mulberry celery, gather wild vegetables, it’s clear to see large tracts of water celery and duck mouth.

Cooper lighting launched Solstar multifunctional led shop lighting

Cooper lighting launched Solstar multifunctional led shop lightingCooper lighting launches new Solstar series multi-function spotlight species diversity, to meet a variety of lighting needs, the series after the company redesigned and expanded, more powerful, led shop lighting, more practical. Loadstar series; multi-functional spotlight with three different diameter embedded options, is housed in a compact type fluorescent lamp, led shop lighting, power from 13watts to 42 watts, can be used for upward lighting and level of illumination, configure a series of diamond angular reflector and a complete refurbishment of used parts.   in addition, the series of spotlight lamp also contains a surface mounted circular condenser model and square, also provide embedded models.   the new Solstar series spotlights one of the most important features is its modular design, led shop lighting, this design can simplify the installation, but also makes the parts can be more user ‘s specific needs for installation.   Solstar series spotlights the accessories can make users depending on the need for a basic source mounting. The atomizing color halo glass, rich colors, can play a very good decorative role, led shop lighting, at the same time the light emitted by the symmetry of the dyeing light can emphasize the room features. Half embedded blade angle can play different role in landscaping. The series of lamps are green, to achieve a variety of environmental standards, led shop lighting, parts of the level of protection for IP44 and IP54, with strong institutions of tempered glass,  led shop lighting, glass with polycarbonate material selection.

Mosquito smoke when burning clouds are thin, like a ripe strawberry fell like. We finished dinner, the day is getting stale, mosquitoes and returned by twos and threes. We put the table was removed, clean the cage mosquito cigarette ashes, standing in the courtyard to the stars come out, LED high bay or is burped to Kang on the bed. I remember my father have dined and wined to satiety in the yard at day, if they were to fly back to the mosquito bite,  led shop lighting, he would proudly call my mother out, said he was a rare female mosquito bite, and his face! We then it will emit joyful laughter, think Dad make fun of. I know, father said right, suck human blood are indeed female mosquitoes, and the male mosquito sucks is plant juices.

Led ribbon lighting efficiency progress and development status

Led ribbon lighting efficiency progress and development statusFor general lighting purposes, people need more white light source. In 1998 the white light LED lighting development success. This {! – Advertising – } LED is an GaN chip and yttrium aluminum garnet ( YAG ) package together. GaN chip emits blue light ( x P = 465nm, Wd =30nm ), led ribbon lighting, high temperature sintering material containing Ce3 + YAG fluorescent powder by the blue light to stimulate issued a yellow light emitter, peak 550nm. Blue LED substrate is mounted in a bowl-shaped reflection cavity, covered with mixed with YAG resin layer, about 200-500nm.   LED substrate by the blue part of absorbed by fluorescent powders, another part of the blue light and yellow light emitted by the fluorescent powder mixed, led ribbon lighting, can be a white. Now, for the InGaN / YAG white LED lighting, YAG phosphor by changing the chemical composition and regulation of fluorescent powder layer thickness, can obtain the temperature3500-10000K colored white. At present already commercialized the first product to blue chip plus YAG yellow fluorescent powder, its best luminous efficiency of about 25lumens / watt, led ribbon lighting, YAG for many Japanese Nichia Corporation import, the price of 2000 yuan / kg; second are Japan’s Sumitomo Electric also developed with ZnSe materials for white light LED however, led ribbon lighting, the poor light efficiency.   from the table can also be seen in certain types of white LED light source is inseparable from the four fluorescent powder: three primary colors of rare earth red, green, blue or yellow powder garnet structure, in the future more promising is the three wavelength, i.e. to Inorganic UV wafer with R.G.B three color fluorescent powder, led ribbon lighting, used for packaging LED lighting white, is expected to three wavelength white light LED this year, commercial opportunities. But here the three fluorescent powder particle size requirements are relatively small, led high bay,  the stability is high, specific application still are in exploration. The use of LED light source for illumination, first replaced power-hungry incandescent lamp, and then gradually to the whole lighting market, will save a lot of power. Recently, led ribbon lighting, white LED has reached the single electricity more than 1 watts, the light output of 25lumens, also increased its practicality.

Luminous paint + diode = lled reef tank lighting revolution

Luminous paint + diode = lled reef tank lighting revolutionRecently, a graduate of Vanderbilt University in the United States in an experiment accidentally discovered a mixture of “paint”, led high bay lantern painted the original blue light-emitting diode lamp as white light like ordinary incandescent bulbs. led reef tank lighting. This invention used in epoxy resin. Academics predict that this new discovery is likely to revolutionize the concept of lighting objects extended to the light bulb outside, as long as this “coating” is painted, any kind of objects can play the role of the light bulb.
Michael Powers is a graduate of Vanderbilt University, led reef tank lighting, and mixed the “paint” the invention from his accidentally discovered in the experiment. In that experiment, Bowles was originally just wanted to create a very small volume of quantum dots, the size of a few nanometers, less than one thousandth of a hair. Quantum dots are nanocrystals made from semiconductor materials, can be called semiconductor nanocrystals, also known as “artificial atoms”, led reef tank lighting, composed by a small amount of atomic size is generally below 100 nm.Ordinary quantum dots which typically contain 100 to 1000 electrons, these electrons are very active and the smaller the quantum dot. Quantum dots will power through quantum dots exposed to light or to give them active, issued by the bright light of various colors.But when Bowers shined a laser on the quantum dots, led reef tank lighting, something unexpected happened.”When a bunch of white light enveloped the table, I was not surprised up,” Powers recalls, “The quantum dots should be of blue, but they are now giving off a beautiful white.”

Made the unexpected discovery, Bowers and another student sprout a new idea.China Epoxy Resin Industry Association, experts say, their mixture of quantum dots with polyurethane / epoxy resin mixture, the mixture is coated on a fat blue light-emitting diode lights. Coated with a mixed “paint” the light bulb size “bloated.” But importantly, led reef tank lighting, it is true, as the Powers wish to issue a white. This white light is not light-emitting diode blue light through the formation of white light after the conversion, but like the warmth of incandescent light bulbs give a yellowish white. Light-emitting diodes and incandescent white light is not the same principle. Former through the injection power to issue the IPL,led reef tank lighting. IPL must be through some kind of phosphor conversion, and then mixed by light to form white light. The latter is a white light tungsten heating.