IEC TR 61341:2010


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

Language: FR Méthode de mesure de l'intensité dans l'axe du faisceau et de l'angle (ou des angles) d'ouverture des lampes à réflecteur


Language: EN 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).

Language: EN Language: FR
Date of issue
TC 34/SC 34A
ICS Codes
Publication number

To use the preview feature, please enable JavaScript in your Browser

Price (excl. VAT)
€ 36,40 (Download and hardcopy)
Delivery format
postal download (20 Pages)




Document for download (PDF) PDF document (download version)
ZIP File for download ZIP file (download version)
Shipping item Paper (print version)/shipping item
Adobe DRM ePub File E-book (Adobe DRM ePub)
Storage medium Storage medium
Database Database
Bezugsart Online Viewing access (7-days available online)
Mandatory Standard according current regulation Mandatory Standard according current regulation

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. For information on cookies, please look at our privacy statement.