The application of ultra-high brightness L9m lamppost reference Ed

Automotive indicator lights on the outside of the car is mainly direction lights, tail lights, and brake lights; Lighting in the interior of the car are mainly various kinds of instrument and display. High brightness LED used in car lights, compared with the traditional incandescent lamp, has many advantages, in the steam

automotive indicator light is mainly the direction of the car lights, tail lights, and brake lights. Car interior is mainly composed of a variety of lighting and display instrument. High brightness leds used in car lights. Compared with traditional incandescent lamp, it has many advantages, has a broad market in the automotive industry. The light emitting diode can withstand strong mechanical shock and vibration. Average working life several orders of magnitude higher than incandescent light bulb, the incandescent light bulb is much taller than the working life of the car itself. Therefore, led brake light packaging can be as a whole, without considering the maintenance. Compared with incandescent lamp belt filter, transparent substrate AlGaAs and AlInGaPLED have relatively high lumen efficiency, therefore, led brake lights and turn signals can be worked in down low driving voltage, the drive current incandescent light bulbs, usually only for a quarter. Low power can also reduce the volume and weight of the car interior wiring system, can also reduce the internal temperature of integrated led light, allowing the lens and cover plastic using low temperature tolerance. Led brake light response time for 100 ns, shorter than the response time of the incandescent light bulb, made more on the driver reaction time, improve the driving safety. Car outside light brightness and color is specified. Although the car interior lighting show is not controlled by the relevant government departments, such as external signals, but automakers have requirements on the color of the leds and lighting. Gap light-emitting diode has already been used in automobile. Ultra-high brightness AlGaInP and InGaNLED will more to replace the incandescent lamp, because they are able to meet the requirements of manufacturers in terms of color and lighting. From the point of view of the price, although the leds are still more expensive than incandescent bulbs, but from the point of view of the whole system, no obvious difference between the price of both. With ultra-high brightness gallium arsenide and gallium arsenide application development, falling prices in recent years, could fall further in the future. Traffic signal indicator using ultra high brightness leds to replace incandescent lamp, traffic lights, warning lights and signs lamp is now all over the world. A vast market and rapid growth in demand. According to the statistics, in 1994 by the ministry of transportation in the United States, there are 260000 intersections with traffic lights, must be at least 12 each crossing the red light, yellow light and QingDeng. Many crossroads also has some additional transition signal and pedestrian crossing warning light. In this way, each intersection may have 20 light, they should be lit at the same time. Hence, can estimate about 1 in the United States. 3. 5 billion traffic lights. At present, use high brightness leds instead of traditional incandescent lamp to reduce the power consumption has obvious effect is obtained. Japan on traffic lights every year about 1 million kilowatts of electricity consumption. High brightness leds to replace incandescent lamp, its power consumption is only 12%. For traffic lights, national authorities should formulate corresponding specification, the color of the signal, lamp Chinese knot, the minimum beam between intensity of illumination, air distribution mode and the requirements on the installation environment. Although these requirements are set by the incandescent light bulb, but they are basically applicable to the current use of ultra-high brightness led traffic light. Big screen display screen is super high brightness leds used another huge market, including monochrome, double color and full color graphics, text and digital display. The traditional active large screen display generally USES incandescent lamp, optical fiber, such as cathode ray tube. Passive displays general use * * * *. Light emitting diode display has been the performance of the light-emitting diode itself and the limitation of the color. At present, ultra-high brightness AlGaInP, TS - AlGaAs and InGaNLED can offer bright red, yellow, green, blue 4 kinds of color, can completely meet the requirements of full color large screen display. Light emitting diode display screen can be according to the pixel size assembled into all kinds of structure. Small pixels usually less than 5 mm in diameter. For monochrome display, use a T - each pixel 1 ( 3/4) Led lamp. For double color display, each pixel using a double color T - 1 ( 3/4) Led lamp. For full color display, need three T - 1 red, green, and blue lights or T - more than a chip 1 ( 3/4) Led lamp as a pixel.