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The Argand lamp is a type of oil lamp invented in 1780 by Aimé Argand. Its output is 6 to 10 candelas , brighter than that of earlier lamps. Its more complete combustion of the candle wick and oil than in other lamps required much less frequent trimming of the wick.
François-Pierre-Amédée Argand, known as Ami Argand (5 July 1750 – 14 [1] or 24 October 1803 [2]) was a Genevan physicist and chemist. He invented the Argand lamp , a great improvement on the traditional oil lamp .
As first developed, the light worked by introducing pure oxygen into the centre of an Argand burner.It was claimed to be a cheap way of producing a bright light: the unburned carbon in the oil flame burned incredibly brightly and an intense, white light was produced from the weak yellow flame of the oil lamp.
Oil lamps are a form of lighting, and were used as an alternative to candles before the use of electric lights. Starting in 1780, the Argand lamp quickly replaced other oil lamps still in their basic ancient form. These in turn were replaced by the kerosene lamp in about 1850.
1780 Ami Argand invents the central draught fixed oil lamp. 1784 Argand adds glass chimney to central draught lamp. 1786 William Nicholson proposes use of concentric wicks. [3] 1792 William Murdoch begins experimenting with gas lighting and probably produced the first gas light in this year.
Experts explain how buying the right light therapy lamp — and using it correctly — may make a difference this winter.
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