月份：2012年6月

t5 led fluorescent tube in led lighting

LED industry has recently been rapid development in the world, especially the decorative lighting is in full swing, widely used in the floor, body contour, bridges, squares and other municipal lighting projects, as well as hotel, KTV, the hotels, playgrounds and other places of entertainment . LED lighting products (t5 led fluorescent tube) main components: LED light emitting diode, PCB circuit board, housing. These materials constitute the main body of lighting products, the basic decisions of the material quality of lighting products.

t5 led fluorescent tube in led lighting

Following the selection of the three materials do a brief description of the impact of lighting products.

1, LED Lights Emitting Diode
The brightness of the light emitting diode is determined by the brightness of the LED chip and light body package outline, its life is determined by the working environment and quality of the LED chip. Special note here is that the LED chip LED lighting products  (t5 led fluorescent tube) used in the standard sizes are generally as follows: red, yellow, 12mil, blue, green 14mil, but also useful for 8-10 mil chip. Different sizes of chip brightness, but their life is completely different, because the unit area of ​​chip over power the greater the shorter its life, which is the same brightness light-emitting diodes price is not the same reason.

2, the PCB board
Direct impact on the circuit board as the carrier of the light source lamp life and failure rate. LED lighting products, electronic circuit on the PCB, its material and processing technology will directly affect the product quality and life expectancy. Circuit board material is divided into a full glass, half glass, cardboard, three kinds. LED lighting products, standard materials should be full fiberglass panels, such as the use of semi-fiberglass or cardboard single panel post-weld quality and moisture, the ability of anti-aging and electrical will be greatly reduced.

3, Housing
Housing of LED Tube  (t5 led fluorescent tube) as light mixing layer and the protective layer of lighting products, but also affect the effectiveness and life of the lamps. Now used in engineering plastics, general PC (polycarbonate), its anti-aging, anti-UV, the impact effect is best. Also useful for PMMA (acrylic), and its weather resistance a little bit weak and brittle fragile. The PC material is colorless and can be processed according to the need to add a different color agents of different colors of the PC tube. Commonly used PC tube is transparent and milky two. Transparent tube brightness than the milky, milky white color mixing is better than the transparent tube.

t5 led lamp component

The LED (t5 led lamp) is a semiconductor light-emitting solid device. It is a solid semiconductor chip as luminescent materials. Ends with a positive voltage, the semiconductor in a small number of interceptor Son, and the majority of the closure sub-compound, release excess energy photon emission directly issue the red, orange, yellow, green, green, blue, purple, white light .

t5 led lamp component

Lighting products have the following advantages and disadvantages:

1, A multi-changes: LED lights  (t5 led lamp)  source can be used on-off light-emitting LED in the current moment the afterglow and the red, green, and blue tricolor principle, the use of LED display screen control technology to achieve the change of color and pattern is a random control Dynamic light.

2, High energy: DC drive, ultra low power consumption (single tube 0.03-0.06 watts) electro-optical power of up to 90%, more than 80% of the same lighting effects than traditional energy sources.

3, Long life: LED solid cold light source, epoxy encapsulated, heat deposition, and other shortcomings. Low working voltage, the service life of up to 50,000 to 100,000 hours, more than 5 times longer life than traditional light sources.

4, Environmental Protection: The cold light source, glare small, no radiation, no mercury elements, not to issue a hazardous substances in use.

5, innovative technology: Compared with conventional light sources, LED light source combines the innovative technology of computer, networking, embedded control, programmable driver circuit can be online, unlimited upgrades, flexible features.

The popularity of LED lamps  (t5 led lamp)  at the same time, also appeared in a number of worrying problems, mainly in the following points:

1, no industry standards: LED is a new industry, the manufacturers have to develop all kinds of products according to market needs, product quality is relatively stable, but many companies quickly succeeded, LED products as long as the light on the line, causing the LED lamps is simply less than its nominal life.

2, non-core technology: LED chips, mostly from the United States, Japan, product updates and technology to enhance the control of others.

The 21st century will be based on LED lighting. Future, as the production and technological progress and improve light-emitting diode, LED luminous intensity and stability will be greatly improved. I believe in the near future of the 21st century, the LED light source for lighting and lighting products is bound to replace general lighting, another revolution in the history of mankind lighting.

t5 led lighting and led color display

The LED is a way to convert electrical energy into visible light by semiconductor, as it’s easy to control, low-voltage DC drivers, the combination of rich color performance, long life, etc., led products are widely used in city lighting projects, large screen display system. LED color wall screen is LED technology is applied in the fields of outdoor decorative lighting, new products, and its working principle is to drive and control two parts, the square with small LED lights as a light-emitting display unit, according to a certain pixel unit by the number of square LED lights matrix of the formation of the LED (t5 led lighting) screen or LED billboards, plus connect video controller and computer form.

t5 led lighting and led color display

LED is a way to convert electrical energy into visible light by semiconductor. Its characteristics are:

a. high efficiency, low energy consumption.
b. The light quality is good, no ultraviolet and infrared spectra, and there is no heat, no radiation, the LED is a typical green lighting.
c. long life, luminous flux to decay to 50% of the nominal life of 100,000 hours.
d. security. Monomer voltage roughly between 1.5V ~ 5V, the current is about 20mA.
e. green. Recyclable waste, no pollution; unlike fluorescent lamps contain mercury components.
f. flexible control by adjusting the current dimming, a combination of different colors of light can be color, coupled with the timing control circuit can achieve a variety of dynamic changes.

These advantages make the LED  (t5 led lighting) is considered to be an ideal green light, has become increasingly multi successfully applied in the field of engineering lighting and display. The performance of the LED tubes in the color, lighting control, environmental protection and energy saving aspects of, than traditional neon, incandescent, halogen, has obvious advantages. LED pixel combinations can form a dynamic, ever-changing visual effects.

The specific design of square light-emitting (display) unit, light-emitting (display) unit consists of a number of LED (t5 led lighting)  square milky PC protection cover, equipped with welding a number of the LED circuit board. A square “light bulb” pixel unit in accordance with the matrix arrangement by positioning snap ring, screws and other fixed fire wood on the fire wood is installed in the wall constitutes a square bulb LED video walls, plus connect video controller or a computer constitutes a simple structure of the wall color screen screen display system. The wall color screen display system controlled by the overall point by point, cascade data transfer, the system is an immediate response, to achieve the overall centralized control of the bar internal LED lights, and adjust the corresponding colors (for example, shows a simple change of the screen) and the atmosphere effect.

t7 led bulb in mouse application

General speaking about led lights, common optical mouse usually refers to the use of optoelectronic components, according to the logical judgment on the mobile surface of the image to generate mouse move data.

The optical mouse works: inside the optical mouse, a light-emitting diodes, to illuminate the optical mouse at the bottom of the surface (which is always shining ). Then part of the light reflected back to the surface of the bottom of the optical mouse, through an optical lens, transfer to a light sensing device (micro-imaging) within the image.

t7 led bulb in mouse application

Thus, when the optical mouse moves, the movement trajectory will be recorded as a group of high-speed shooting of a coherent image. Finally, the optical mouse inside a dedicated image analysis chip (DSP, or digital microprocessors) intake on the trajectory of a series of image analysis and processing, and analyzed through the change of the characteristic points on these images to determine the moving direction and moving distance of the mouse, thus completing the positioning of the cursor.

The optical mouse usually consists of the following: optical sensors, optical lens, light-emitting diode, the interface microprocessor, touch buttons, scroll wheel, connection, PS / 2 or USB interface. Next we focus to understand the light-emitting diode (t7 led bulb) optical mouse.

But why the common optical mouse LED is red?

Why did we choose red? Actually, the reason is relatively simple, since red-light LED technology is relatively mature, and the cost of pay is relatively cheap. This makes the longest life of the red bright LED (t7 led bulb) . Imaging of the optical engine is monochrome, no matter what color the light source does not have an impact. In this case, in addition to a few companies other than for manufacturing, selling, most manufacturers will of course select a red product, so that as many optical mouse with blue LED (t7 led bulb) , to make a difference, but is essentially the same.

Looking ahead, even if the laser mouse great popularity of the potential, but still inseparable from the LED auxiliary light. Nevertheless, the optical mouse Popularization of view, the LED products  in the mouse continues to occupy the absolutely dominant position, can not shake.

super bright led light bulbs and led flood light

First, what is the LED lamps for flood light?
LED lamps for flood light (LED Downlight) also known as the spotlight, projection lamps, spotlights, etc., mainly used to make the use of architectural lighting, as well as commercial space lighting decorative ingredients heavier, its appearance round party, generally have to consider the heat of reasons, therefore, its shape and Spotlights still have some differences.

Second, LED Floodlight features:

super bright led light bulbs and led flood light

Common market, LED (super bright led light bulbs) Spotlights basically is the choice of 1W high power LED (each LED component with a high luminous efficiency made by the PMMA lens, its main function is the secondary distribution of the LED light, which is two optical), there are a few companies because of the heat if handled well, the choice of 3W or higher power LED. Cast lighting, buildings and other lighting suitable for large occasions.

Third, what is the LED flood lights  (super bright led light bulbs) ?

LED floodlight  (super bright led light bulbs) is a point light source of an exposure evenly in all directions, the irradiated area can be adjusted in the scene in the performance of a regular octahedron icon. The floodlight is in effect, making them the most widely used light sources, standard floodlights used to illuminate the entire scene. Floodlights can be applied to the scene to produce good results. The floodlight is the most widely used in the renderings, a light source, the scene with floodlights coordinating role, to the birth of the good results. Uniformly in all directions from a specific point in the irradiated object, use it to simulate light bulbs and candles are best. Floodlights can be placed anywhere in the scene. For example, it can be placed outside the camera range, or within the objects. Remote access to many different colors of floodlights in the scene is very common. These floodlights will be dark projection and mixing in the model. Floodlights illuminated area is relatively large, so the irradiation effect of the floodlights is very easy to predict, and this light there are many secondary uses, such as floodlights placed in position near the surface is the surface on to produce a bright light.

Fourth, the floodlight features:
The floodlight is uniformly in all directions from a specific point in the irradiated object, use it to simulate light bulbs and candles are best. Floodlights can be placed anywhere in the scene. For example, it can be placed outside the camera range, or within the objects. Remote access to many different colors of floodlights in the scene is very common. These floodlights will be dark projection and mixing in the model. Floodlights illuminated area is relatively large, so the irradiation effect of the floodlights is very easy to predict, and this light there are many secondary uses, such as floodlights placed in position near the surface is the surface on to produce a bright light.

The factors of LED light energy savings

Most lighting designers believe that the quality of all the LED products are the same. Only a small part of the manufactures to produce high-quality LED. For applications that only used as a simple indicating the role of the low quality of the LED is sufficient to meet the requirements. However, in many areas of the requirements of consistency, reliability, solid-state instructions or lighting must be of high quality LEDs, especially in harsh environments, such as highways, military/aerospace, and industrial applications.

In the New York subway stations and other environmental, safety requirements are very demanding, the led light energy savings must meet the high quality requirements of the fundamental factors.

Distinguish between the level of LED quality factors? How to tell the difference between the two LED Lights’s? In fact, high-quality LED chip start until assembly is complete, during which there are many factors to consider. Tier-One LED manufacturing company produce excellent and consistent indicators wafer starting from the high-quality led light energy savings manufacturing materials, enough to make a good chip. Determine the conditions of the LED performance, the chemical materials used in wafer production process is a very important factor.

A 2-inch wafer can be cut out more than 6000 led light energy savings chip, there is only individual chip performance overall. A good chip manufacturer makes chips in the difference of color, brightness, and the voltage drop is very small. After completion of the LED chip package, many of their performance have big difference, such as perspective. In addition, the impact of packaging materials is quite large. For example, silicone has better performance than epoxy resin.

Classification ability

Excellent LED manufactures can not only create high-quality chips, but also has the ability to classify the color, brightness, voltage. High quality LED CHINA suppliers can only provide customers with consistent operating characteristics, while lower-quality LED suppliers only provide LED which is similar to the “mixed”.

For high-end, quality-demanding applications, such as the boundaries of the airport runway lights must meet the FAA-calls color and brightness specifications, to ensure consistency of performance and security, led light energy savings packaging is strictly limited. Packing poor LED is used in demanding applications which will lead to premature failure and other non-consistency problem which is likely to lead to major accidents. In order to avoid equipment shutdown and to ensure that the operating characteristics specified in the design of the LED reliable, high-end and quality demanding applications should avoid the use of “mixed” products. This point is very important.

LED lighting product in Central Africa Cooperation Working Conference Held in Beijing

In response to the national “China-After science and LED Lights technology partnership” appeal, in 2010 October the State Ministry of science and technology implementation of China and the Republic of Kenya higher education and the Ministry of science and technology on the construction of apropos signed ” “semiconductor lighting demonstration project” and the “memorandum of understanding on the establishment of high efficient in Vito network to illumination center memorandum of understanding”, effectively promote a semiconductor lighting cooperation, China-Africa Cooperation semiconductor lighting in February 24, 2011 working conference held in the Institute of semiconductors. The meeting about led lighting product was convened by the National Semiconductor Lighting Project R&D and Industry Alliance. The people who from the semiconductor lighting related companies attend the LED PROJECTS meeting.

At first, the government China Solid State Lighting R&D and Industry Alliance, non-semiconductor lighting cooperation projects on the development of cooperation in a report. Described in detail the background of the non-semiconductor lighting on the basis of the implementation of relevant national call, can improve the lighting situation in African countries and improve people’s quality of life, but also conducive to China’s semiconductor lighting companies to develop the African market.

The existing African LED TUBES market development experience in the business representatives and participants to share experiences and views on the lighting market in Africa. Fieldwork in the African market, a vivid introduction to Africa semiconductor led lighting product market conditions, market demand and product characteristics and market competition situation. Lighting market in Africa can be in divided into high low points, but overall, the African market for the product performance requirements are not high, simple, easy to maintain the universal demand of the product. On the project in Africa has a heated discussion about the difficulty encountered. It was agreed that Africa semiconductor lighting has a huge market demand, but the image and reputation of Chinese enterprises in African’s mind is not high and should take effective measures to quickly change and improve the image of Chinese enterprises in Africa. Delegates deeply appreciated the power of an enterprise alone. In the vast African market alone can not play the advantages of the enterprise and also can not meet market demand.

LED lighting industrial, the additional biggest problem is “hot”

Fourth, it is because the heat generated by the LED lights, so it needs for cooling. Compared with the light weight plastic, the thermal conductivity of the metal is much better, but also bulky enough.

Five, Light perception. In fact, it is not a fatal flaw of LED lighting. LED lighting industrial products under the case of the less electricity, and the reason for the issues of the heat for long time, it is because the LED lighting stimulate the visual sense.  But such light is too strong, and if with the quality of the shade or baffles, or in large part to address this glaring problems.

Six, with regard to prices, after read the first five principles, it is self-evident.

LED Flood lighting is not that energy-saving on the matter, the key is to make consumers feel affordable and reliable.

The word “hot” in LED lighting field is sensitive. A word “hot” make a number of enterprises exhausting and make many consumers are neurotic. In the area of LED lighting. LED lighting industrial brand in the Chinese market could get almost none. The reason is simple, it can not solve the “hot” issues.

China professional LED lighting companies seem to have a lot. In fact, except ChangFang light, Really bright, Qingshang lighting etc, most of the little-known small business in the name of walking a fine line. In fact, look at the entire China market, LED lighting products capacity is not large enough to hold up more than one billion people in China’s consumption. So LED lighting industrial gets hot. How long does it sustained? How to continue the fire? This is the number of LED lighting enterprises and the people involved in the LED products, we can easily see that put in the LED lighting industry, the most urgent and the biggest problem is the “hot” instead of “heat”!

We use the foreign machinery and equipment to produce chips, or chips imported from abroad with foreign machine package, and then the foreign machine package, and then the foreign machine processed into finished lamp, however, it is still hot, so then we sold superior products abroad and let the foreigners pick and choose. Why is the Chinese high-tech is always dependent on foreign? More certain businesses even “imported” as the back of the brand’s quality.

LED lighting industrial, the biggest problem is “hot”

Look at this summer, it is so hot, and take a look at this summer’s flooding floods. Not saving and environmental protection, it will be more severe.

After suffering a lot of natural disasters, people is just deep introspection. Energy conservation protection has moved. Government strongly support, a lot of enterprise have answered the calling. People are expecting one energy conservation environmental  protection revolution.

LED lighting is indeed the new energy-saving king, just a few years time, it made known to every family, and took up a hot LED Lights market. The market is hot, but it is helpless and pale. On the led lighting industrial, many of the good news once again full of each big website headlines and impact on people’s ear. Just now and then whoever dedicated people will be got down to as “the wolf came”.

We try to look at the LED energy conservation principle:

One, convert the electrical energy the maximum into light; two, make the most suitable for human visual senses light.

When we put the LED lamp compared with the traditional energy-saving lamps, we can clear judgment, LED lamps are energy-saving. Here, everyone will think that energy saving will be OK?

Let’s look at how the led lighting industrial affect the market. the heat issues, life issues, weight issues, efficiency issues, lighting issues, the price. In fact, more than six come from the energy-saving LED lighting principle link.

First, since there are heat issues, it means that the LED lighting and light don’t convert the lighting energy as maximize, even worse than the common fluorescent lamp.

Second, since the high heat production of the LED to the point of view can affect the cooling temperature, to the point of view, the temperature can be seen in general. led lighting industrial source, what kind of material can withstand up to tens of thousands of hours of hot baking? Of course, there will be such a high-quality materials, but the price would be prohibitive.

Third, about life issue. In fact, it is very simple. The heat of the LED chip will affect the life of the LED lighting source itself, resulting in bad light, but also affect the life of the LED lamps, PCB driver board.

Technology trends of led lighting product chips

Austria microelectronic sensor driving lighting department director Sajol Ghoshal points out, to promote the continuous development of led lighting product technology is the main factor of LED Lights regulations. At present, the construction of the new power plant has become very expensive, so in the future ten years, governments around the world are looking to significantly reduce energy consumption. In a building, a high percentage of energy consumption come from lighting. Therefore, the new forced regulations will affect lighting system design and installation of applications. The European Union is planning to phase out the inefficient light bulbs and has formulated regulations for commercial lighting.

From the historical perspective, led lighting product is a rough control of the electrical load, with a simple switch manual control can be further refined control. For example, the lighting is a rough control of the electrical load, with a simple switch manual control that can be further refined. For example, the California Assembly Bill 32 regulations require the building to 2018 to reduce energy consumption by half. Other building codes, such as California, the Title 24 proposed more specific requirement. Such as requiring the implementation for daylight through windows and skylights capture to reduce energy consumption, and requiring the building equipped with an automatic lighting control system. Currently, low-cost passive infrared detectors has been rarely used in the room. Through building system to control lighting can greatly reduce energy consumption, and provide users with a highly optimized lighting. In this regard, it is clear that there is still a long way to go LED Panel.

Therefore, to use the advantage of  LED power and  flexible lighting control will be the main trend in the next generation of lighting systems. The program allows the lighting system to adjust the brightness and color of the led lighting product of environmental changes in order to meet the environmental requirements, such as when there is sufficient daylight in the room or no one in it, the method can automatically reduce energy consumption.

Meanwhile, with the development of LED Tunnel residential and commercial lighting applications, the demand for dimming increases, but the incandescent lamps which used in SCR dimming is still here, so the dimming driver IC architecture design need to face a wider range of dimming compatibility issues.