Optimised Light Source Modelling and Simulation to Match Physical Intensity-Angle Light Profile

One of the key elements in an optical simulation including design and utilisation of a virtual instrument is to optimise the light source model to match the physical intensity-angle light profile. To have such a matched virtual light source model within a Blender environment, multiple spotlight source models with different power parameter values can be utilised at the same point. The overall intensity angle profile corresponding to this light source is then obtained within the Blender environment. A mathematical formulation is proposed to estimate the parameters of each light source such that the overall intensity angle profile match that of the manufacturer’s given curve. Results demonstrate that using the proposed approach, it is possible to make the light source model follow the actual intensity-angle light profile given by the light source manufacturer. Inspired by the results obtained in this paper, the proposed light source model will be used within the virtual instrument for a multi-illumination dome system to perform precision simulation within this environment.