In pyrotechnics, a flame projector is a special effects device that projects a column of flame upwards, for a short, determined and controllable, period, usually on the order of a few seconds. The simplest form of flame projector is simply a vertical tube mounted on a base, containing powder and a hole for an electric match.
Flame projectors can produce flames of different colours by simply adding a colouring agent. Potassium compounds make purple compounds, for instance. Lithium and strontium are red, sodium is bright yellow, copper and boron compounds are blue or green.
References
- ^ Bonnie J. Kosanke (1995). "Flame Projector". The Illustrated Dictionary of Pyrotechnics. Journal of Pyrotechnics. p. 50. ISBN 1-889526-01-0.
- Robert S. Simpson (2003). Lighting control-technology and applications. Focal Press. p. 534. ISBN 0-240-51566-8.
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