Active standard | Published: 18/02/2010

IEC/TR 61341-ed.2.0

Method of measurement of centre beam intensity and beam angle(s) of reflector lamps
(Methode de mesure de l´intensite dans l´axe du faisceau et de l´angle (ou des angles) d´ouverture des lampes a reflecteur)

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Detail information

Designation: IEC/TR 61341-ed.2.0

Publication date: 18/02/2010

Pages: 20

Country: International technical standard

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Anotation

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). La CEI/TR 61341:2010 decrit la methode de mesure et de specification de lintensite dans laxe du faisceau des lampes a reflecteur et de langle (ou des angles) douverture dudit faisceau. Il sapplique aux lampes a reflecteur pour eclairage general des types suivants: - a filament de tungstene, - tungstene-halogene, - a decharge et a LED. Il ne sapplique pas aux lampes speciales, telles que les lampes de projection. Cette deuxieme edition annule et remplace la premiere edition publiee en 1994 et constitue une revision technique. Suite a lutilisation de plus en plus repandue des reflecteurs equipes de lampes a DEL, le domaine dapplication a ete elargi et des conditions de mesure ont ete introduites pour tenir compte de ces lampes. En outre, deux figures ont ete ajoutees pour une meilleure comprehension de la relation entre les differents axes et les differentes intensites. La repartition de lintensite lumineuse doit etre utilisee a la place de lintensite dans laxe du faisceau, si cette derniere est tres faible (repartitions de type "butterfly").

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