Need of LED Phosphors in Growing Industry!!!!
A phosphor is a substance that emits light upon exposure of an electron beam or ultraviolet radiation. Phosphors are useful materials in the manufacture of LEDs. The chemistry and composition of phosphor largely determine the light quality, stability and efficiency of an LED. The LED technology is widely being used in illumination applications in automotive and households. LED bulbs consume lesser energy while producing a light having intensity higher than that of incandescent bulbs. Also, LED lights last longer than CFLs and even surpass them in terms of energy efficiency.
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Early LEDs were often used as indicator lamps, replacing small incandescent bulbs, and inĀ seven-segment displays. Recent developments have produced high-output white light LEDs suitable for room and outdoor area lighting. LEDs have led to new displays and sensors, while their high switching rates are useful in advanced communications technology.
Appearing as practical electronic components in 1962, the earliest LEDs emitted low-intensityĀ infraredĀ (IR) light.Ā Infrared LEDs are used inĀ remote-controlĀ circuits, such as those used with a wide variety of consumer electronics. The first visible-light LEDs were of low intensity and limited to red. Modern LEDs are available across theĀ visible,Ā ultravioletĀ (UV), and infrared wavelengths, with high light output.
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Top Key Companies:
ā¢ Bridgelux
ā¢ Broadcom
ā¢ Citizen Electronics
ā¢ Cree
ā¢ Dialight
ā¢ GE Lighting
ā¢ Lumileds Holding B.V.
ā¢ Nichia
ā¢ OSRAM GmbH
ā¢ Seoul Semiconductor