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Incandescent Light Bulb
Thomas Alva Edison was one of the greatest inventors. The light bulb was the brightest one among his inventions. Another great invention vacuum tube was also inspired from the light bulb. The goal was only to provide a method of supplying the world with inexpensive, widely available commercial lighting. It was a great achievement, but some flaws were revealed in coming centuries.

Incandescent light bulb has maintained the lowest cost than any other lighting technology. But part of the electrical energy has wasted in the form of heat, rather than light. Some applications such as incubators and heaters are utilizing this feature of heating radiation, however incandescent light bulbs are being replaced in many occasions by CFL (compact fluorescent lights) and HID (high-intensity discharge lamps) , which give more visible light for the same amount of electrical energy input. These alternative lighting technologies are called as cold light source. Some jurisdictions are attempting to ban the use of incandescent light bulbs in favor of more energy-efficient lighting.

Today there are various applications in every field. In response to this increase in various applications, Nichia Corporation is producing mini power LEDs and high power LEDs that ca be driven at high currents. Mini power LED are suitable for less brightness or small output applications, such as back lighting systems, indicators and so on.

XLamp LEDs lead the solid-state lighting industry in brightness while providing a reflow-solderable design that is optimized for ease of use and thermal management. Lighting applications featuring XLamp LEDs maximize light output and increase design flexibility, while minimizing environmental impact. They are used in a broad range of both specialized and general lighting applications. When designing lighting systems using LEDs, one of the most critical design parameters should be the system’s ability to draw heat away from the LED junction.

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