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EA: LIGHT_PATTERN

Status:

STD 2005/06/07

Code:

576

Concept definition:

The type of sequence, grouping, and/or distinctive character of a <LIGHT>; light pattern.

Attribute value type:

ENUMERATION

Reference type:

Reference:

[FACC, Annex B: CHA]

Supplemental references:

Enumerants (presented in a natural order)

1 / 5 Entries per page: 5 10 20 50 All Custom: 41 entries (displaying 1-10)

Status	Attribute label	Enumerant label	Concept definition	Code	Ref type	Reference ▾
STD 2005/06/07	LIGHT_PATTERN	GROUP_OCCULTING	Rhythmic, in which the total duration of light in a period is clearly longer than the total duration of darkness, and the long duration light periods are separated by a single short duration light period; group-occulting.	16	IR	[FACC, Annex B, CHA:10]
STD 2005/06/07	LIGHT_PATTERN	LIGHTED	Lighted.	24	IR	[FACC, Annex B, CHA:21]
STD 2005/06/07	LIGHT_PATTERN	UNLIGHTED	Unlighted.	39	IR	[FACC, Annex B, CHA:23]
STD 2005/06/07	LIGHT_PATTERN	GROUP_QUICK_FLASH	Rhythmic, exhibiting very rapid regular alternations of light and darkness, with a repetition rate of not less than 50 flashes per minute but less than 80 flashes per minute, is interrupted by regularly repeated eclipses of constant and short duration; group quick-flash.	17	IR	[FACC, Annex B, CHA:28]
STD 2005/06/07	LIGHT_PATTERN	GROUP_VERY_QUICK	Rhythmic, exhibiting very rapid regular alternations of light and darkness, with a repetition rate of not less than 80 flashes per minute but less than 160 flashes per minute, is interrupted by regularly repeated eclipses of constant and short duration; group very quick-flash.	18	IR	[FACC, Annex B, CHA:29]
STD 2005/06/07	LIGHT_PATTERN	COMPOSITE_GROUP_FLASH	<<<GROUP_FLASHING>>>, where all of the groups occur as multiple groups within a period; composite group-flashing.	2	IR	[FACC, Annex B, CHA:2]
STD 2005/06/07	LIGHT_PATTERN	INTENSIFIED	Intensified.	19	IR	[FACC, Annex B, CHA:33]
STD 2005/06/07	LIGHT_PATTERN	DIRECTIONAL	Having a very narrow sector designed to signal or mark a <DIRECTION> to be followed.	4	IR	[FACC, Annex B, CHA:36]
STD 2005/06/07	LIGHT_PATTERN	COMPOSITE_GROUP_OCCULTING	Rhythmic, in which the total duration of light in a period is clearly longer than the total duration of darkness, and the long duration light periods are separated by multiple short duration light periods; composite group-occulting.	3	IR	[FACC, Annex B, CHA:3]
STD 2005/06/07	LIGHT_PATTERN	DIRECTIONAL_MOIRE	A sodium <LIGHT> gives a yellow background to a screen on which a vertical black <LINE> will be seen by an observer on the <CENTRE_LINE>; directional moiré. This pattern is produced by a short-range (up to 2 kilometres) type of directional <LIGHT>.	5	IR	[FACC, Annex B, CHA:43]

1 / 5 Entries per page: 5 10 20 50 All Custom: 41 entries (displaying 1-10)

Group membership:

LIGHTING_AND_VISIBILITY

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yellow - the entry has been added to the register
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