The way we use electrical lighting is changing rapidly; first arc lighting, then the incandescent lamp – tomorrow... the LED? In the past we have used all manner of things to provide artificial illumination, and lengthen our day, from firelight to candles. In this first article on lighting, Gavin Harper discusses electrical lighting technologies.
This is a three page article. First published in June 2010
The general public have a healthy degree of scepticism about green lighting technologies. Changes made by the EU and in other countries, to ban the incandescent bulb have not been met with universal public approval. Furthermore, low energy lighting is often perceived as feeling cold, sterile, unnatural and unwelcoming compared to familiar incandescent bulbs.
Some of this is down to technological development – as we shall see throughout this and following articles. Lighting technologies are rapidly evolving; early fluorescent lamps with flickering mechanical starters, and poor quality first and second generation phosphors, can be rightly criticised for poor colour rendition ...
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