150 years ago, researchers were working on a brilliant idea that will have a huge impact on the way we use energy at home and in the workplace: the light bulb.
In the 19thand century, the lighting is still imperfect. The discoveries of the electric light bulb and its improvements will develop over several decades. In recent years, light-emitting diodes (LEDs) are revolutionizing the world we live in.
The invention of the light bulb
This invention radically changed the way buildings are made, increased working hours and transformed the way we use public spaces. Like all great inventions, the light bulb cannot be attributed to a single creator. Rather, it is an accumulation of small discoveries made by different inventors that led to the creation of the light bulb that we use today to light us up.
In this file, you will discover the history of the light bulb, from the first model which saw the light of day in 1835 to the incandescent light bulb which was only a stage in the evolution of electric lighting. Then will come thefluorescent bulb until the big breakthrough of LEDs in the 1990s. These allow energy consumption to be reduced by more than 80% with a lifespan 25 times longer.
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This report was produced by Darren Gilbert, director of World Bulb.
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