title: Virtual experiment for near-field goniophotometric measurements.
abstract: 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.
authors.forename: Franko
authors.initials: F
authors.lastname: Schmähling
authors.forename: Gerd
authors.initials: G
authors.lastname: Wübbeler
authors.forename: Marco
authors.initials: M
authors.lastname: Lopez
authors.forename: Frank
authors.initials: F
authors.lastname: Gassmann
authors.forename: Udo
authors.initials: U
authors.lastname: Krüger
authors.forename: Franz
authors.initials: F
authors.lastname: Schmidt
authors.forename: Armin
authors.initials: A
authors.lastname: Sperling
authors.forename: Clemens
authors.initials: C
authors.lastname: Elster