Difference between revisions of "Chimney"
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Revision as of 01:01, 25 February 2009
2-3-065
A glass envelope surrounding the flame of an oil lamp, and having special shape, in order to improve the luminous efficacy and to avoid flickering of the flame.
Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)
[[Category:2.3 Light Sources]