Virtual experiment for near-field goniophotometric measurements

Near-field goniometric measurements are employed to determine the photometric characteristics of light sources, i.e., the spatial and angular distribution of the emitted light. To this end, a complex measurement system consisting of a goniometer and a CCD-based imaging photometer is employed. In ord...

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Bibliographic Details
Published in:Applied optics (2004) 2014-03, Vol.53 (7), p.1481-1487
Main Authors: Schmähling, Franko, Wübbeler, Gerd, Lopez, Marco, Gassmann, Frank, Krüger, Udo, Schmidt, Franz, Sperling, Armin, Elster, Clemens
Format: Article
Language:English
Subjects:
Angular distribution
Charge coupled devices
Computer simulation
Gain
Goniometers
Impact analysis
Mathematical models
Photometry
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Summary:Near-field goniometric measurements are employed to determine the photometric characteristics of light sources, i.e., the spatial and angular distribution of the emitted light. To this end, a complex measurement system consisting of a goniometer and a CCD-based imaging photometer is employed. In order to gain insight into the measurement system and to enable characterization of the whole measurement setup, we propose to apply a computer model to conduct virtual experiments. Within the computer model, the current state of all parts of the virtual experiment can be easily controlled. The reliability of the computer model is demonstrated by a comparison to actual measurement results. As an example for the application of the virtual experiment, we present an analysis of the impact of axial malpositions of the goniometer and camera.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.53.001481