History of LED highbay light

1907 Henry Joseph, a first LED highbay light in a silicon carbide mechanical and electrical the phenomenon. Due to the the yellow of the issued Kwangtai black, is not suitable for practical applications; suited to silicon carbide and electromechanical more difficult, research was abandoned. Gudden late twenty's grace in Germany and Robert Wichard zinc sulfide, copper, phosphorus chemiluminescence. Because of luminous and dark and stop.
In 1936, George · Destiau, zinc sulfide powder released report of the emitted light. With the application status and widely recognized, the last of the term "El Niño".
20 Century50, British scientists in electric luminescence experiments with the invention of the first modern sense of leadership to the semiconductor material, and can be used in the sixties. It is said that in the early trials, resulting in the need to be placed in liquid nitrogen, and the need for further action and breakthrough efficiency work at room temperature. The first generation of business leaders can only be issued by the invisible infrared, but quickly applied to the areas of sensing and optoelectronics.
In the late 1960s, the GaAs substrate phosphide invented the first visible red LED. The gallium phosphide changes make the leadership more efficient, released a red light, even produce orange light.
In the mid-1970s, gallium phosphide as the light source, and a pale green. The LED using double GaAs wafer (a red one just green) can be issued yellow. At this time, the Russian scientists used silicon carbide production of yellow light. Though not as European LED efficient. But in the late 1970s, it glows green. Aluminum phosphide in the early 1980s, the mid-first-generation high-brightness LED-born, the first set of red, then yellow, and finally green.
Until ninties early as phosphide aluminum gallium indium production of orange, yellow and green. The first time in the history of blue LED also appeared in the early 1990s, and then the semiconductor light source Emery - early obstacles. Measured in accordance with the technical standards to Russia earlier yellow light LED light source.
In the mid-1990s, there gallium nitride ultra brightness LED, green and blue and then the production of agricultural products of high strength indium gallium LED n. The core of the high luminance blue white LED chip, the light emitting chip coated with a fluorescent P, then P in the blue light enters the light absorption fluorescence chip. Using this technique is to create any visible color of light.   LED highbay light arket will see the production of novel colors such as pale green and pink combination into. May learn the scientific readers LED development has experienced a long and tortuous history of the process. In fact, the recent development of not only sent a pure UV and truly "black" issue ultraviolet. Low-energy far away, so the history of the development of the LED can be nothing. Perhaps one day be able to develop energy X-ray LED. However, the development of LED is not just its color and brightness, like computers, to comply with the development of Moore's Law. Doubling every 18 months brightness. The early LED can only be used for the lights, the early computer displays and digital watches. Now began to appear in the super-bright areas. Will be continued in the next period of time. For example, United States 2005 e All traffic lights will be led; Decade for the automotive industry in the United States will stop using incandescent bulbs, LED highbay light, including car headlights. Most large outdoor screen thousands of LEDs to produce high-quality video effects. Soon, LED will light up our home, office or even street. Using energy-efficient LED solar rechargeable battery through the red light from the sun and its electrical. In order to be able to power off the light source and the Third World and elsewhere. The dim light-emitting diode to lead a new era of truly herald.
Dongguan City Yeston photoelectric Lighting Technology Co., Ltd. specializes professional production of LED mining lamp series products.
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