Valgusdioodide

Valgusdioodide, often referred to as LEDs, are semiconductor devices that emit light when an electric current passes through them. This phenomenon is known as electroluminescence. Unlike incandescent bulbs which produce light by heating a filament, LEDs are much more energy-efficient and have a significantly longer lifespan. The color of the light emitted by an LED is determined by the semiconductor material used in its construction. By combining different types of semiconductor materials and dopants, manufacturers can produce LEDs that emit a wide spectrum of colors, including red, green, blue, and white. White LEDs are typically created by using a blue LED coated with a yellow phosphor, which converts some of the blue light into yellow, resulting in a white light. LEDs are increasingly used in various applications, from lighting and displays to indicator lights and optical communication systems, due to their durability, low power consumption, and compact size. Their ability to be rapidly switched on and off also makes them suitable for high-speed signaling. The development of high-brightness LEDs has revolutionized lighting technology, leading to widespread adoption in households, businesses, and public spaces.