The simulation of reflectors provides very precise information on light distribution intensities in a very short time, without having to use expensive tools to produce prototype reflectors. For the reflector simulation, the lamps to be used are initially measured accurately and the individual components of the lamp designated to luminances and other lighting characteristics. Subsequently, the geometry of the light aperture and the lamp position are defined. Starting from a basic reflector form, the designer then changes the contour of the reflector step by step to achieve the required light distribution. After each change of contour, the program calculates the illuminance for a sample area to enable an assessment of the light distribution, and produces a light intensity distribution curve of the virtual luminaire. Programs for reflector simulation are usually based on the (forward) ray tracing method, where the rays of light are emitted from the lamp.

Definition of lamp properties

Rendering Lamp

Reflector simulation

Light distribution on test surface

Light distribution curve