Technical Articles

Metrology Auxiliary photometer method for goniophotometric measurements

Being the first internationally agreed measurement standard for LED devices, CIE S025 [1] will have a great impact on the measurements performed worldwide. The standard was developed to allow various measurement equipment which obtains correct results and is affordable at the same time. This article demonstrates, that in the case of using a turning-luminaire goniometer for goniophotometric far-field measurements [2], the so-called auxiliary photometer correction method complies with CIE S025 and puts minimal requirements on the user concerning budget and test room dimensions.

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  • Instrument Systems Optische Messtechnik GmbH

    Kastenbauerstr. 2
    81677 München

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