Difference between revisions of "Appearance of Light"

Revision as of 10:10, 25 February 2009

2-5-125

An exhibition of light for a given time between two darknesses.

Note 1: In Germany and some other countries, brief appearances of light are classified according to duration

(a) Blitz - An appearance of light of duration not more than 1 second, the interval of darkness being relatively long in comparison with the appearance of light.
(b) Blink - An appearance of light of duration at least 2 seconds, the interval of darkness being relatively long in comparison with the appearance of light.
(c) Schein - An appearance of light between two darknesses, the duration of dark-ness being not longer than the duration of light.

Note 2: Blitz and Blink are flashes (2-5-130).

Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

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