25072019 - A evolução dos sistemas de iluminação_inglês

The history of artificial lighting began in Prehistory, when man began to dominate the fire. In those early moments, the purpose was not only to illuminate dark places, but also to protect from low temperatures and wild animals.

The evolution continued and in 500 BC the oil lamp was created, a device that illuminated from the burning of the wick with whale oil, which later served as inspiration for the creation of the lamp, which used the same principle but provided better illumination.

The next great invention was the lantern, which kept the flame protected inside a glass structure, and provided brighter lighting due to the air circulation inside it.

Almost a hundred years later, in the year 1878, Thomas Edison created what could be considered one of the greatest evolutions related to this issue, the first electric lamp, counting on platinum filament, also known as incandescent lamp.

After this creation it is possible to observe the evolution of this model over the years, with the invention of the pair lamp, which had a new connection system, and could even be used in automobiles.

A few years later Nicola Tesla introduced the fluorescent lamp. Unlike filament lamps, it had great efficiency by emitting electromagnetic energy in the form of light.

More recently, in 1990, the LED – Light-Emitting Diode is invented, an extremely efficient technology that provides better illumination with considerably lower consumption.

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