Open AccessGeometric system analysis of ILMD-based LID measurement systems using Monte-Carlo simulation
Author(s) -
Markus Katona,
Klaus Trampert,
Christian Schwanengel,
U. Krüger,
Charles J. Neumann
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2149/1/012015
Subject(s) - monte carlo method , luminance , position (finance) , system of measurement , detector , geometric modeling , kinematics , angular resolution (graph drawing) , computer science , computer vision , optics , physics , geometry , mathematics , classical mechanics , statistics , finance , combinatorics , astronomy , economics
Imaging Luminance Measuring Device (ILMD) based luminous intensity distribution measurement systems are an established method for measuring the luminous intensity distribution (LID) of light sources in the far field. The advantage of this system is the high-resolution acquisition of a large angular range with one image. For the uncertainty budget, the mathematical description of the system can be divided into photometric and geometric contributions. In the following, we will present a Monte-Carlo approach to analyse the geometric contributions which are the uncertainty of measurement direction and measurement distance. Therefore, we set up a geometric system description based on kinematic transformations that describes the connection between detector and light source position. To consider all relevant input quantities we simulate the adjustment and measurement process. Finally, an analysis of the geometric input parameters is shown.