BS EN 61341:2011 - Method of measurement of centre beam intensity and beam angle(s) of reflector lamps

BS EN 61341:2011

Method of measurement of centre beam intensity and beam angle(s) of reflector lamps

Status : Current   Published : March 2010

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IEC/TR 61341:2010 describes the method of measuring and specifying the centre beam intensity and the associated beam angle(s) of reflector lamps. It applies to:


- incandescent,


- tungsten halogen,


- gas-discharge and LED based reflector lamps for general lighting purposes. It does not apply to lamps for special purposes such as projection lamps. This second edition cancels and replaces the first edition published in 1994 and constitutes a technical revision. Due to the increasing use of reflector equipped LED lamps, the scope has been broadened and measurement conditions been included in order to take account of these lamps. Further, for easier understanding of the relation between the different axis and different intensities, two figures have been added. The luminous intensity distribution shall be reported instead of the centre beam intensity, if the latter is very low ("butterfly" distributions).




Standard NumberBS EN 61341:2011
TitleMethod of measurement of centre beam intensity and beam angle(s) of reflector lamps
StatusCurrent
Publication Date31 March 2010
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)CIE 43
International RelationshipsEN 61341:2011,IEC/TR 61341:2010
Amended ByCorrigendum, August 2011.
DescriptorsElectric lamps, Reflectors (light), Reflection, Photometry (light measurement), Optical measurement, Luminous intensity, Angular measurement
ICS29.140.20
Title in FrenchMéthode de mesure de l'intensité dans l'axe du faisceau et de l'angle (ou des angles) d'ouverture des lampes à réflecteur
Title in GermanVerfahren zur Messung der Lichtstärke in Hauptausstrahlungsrichtung und des (der) Ausstrahlwinkel(s) von Reflektorlampen
CommitteeCPL/34/1
ISBN978 0 580 74261 3
PublisherBSI
FormatA4
DeliveryYes
Pages16
File Size1.282 MB
Price£130.00


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