LEARN was asked by the British Sports Council to see if it would be possible to simulate the lighting in a typical badminton hall, badminton being one of the most visually demanding of sports.
The problem lies in the relatively small shuttlecock, which at the moment must be white, and its contrast against the background.
Ideally, the shuttlecock should be well lit against a dark background, and large contrasts between wall, ceiling and floor should be avoided. As the halls have multi-purpose uses, a dark background can make the space oppressive - lighting design is thercfore critical.
Fluorescent lighting as well as high bay and super high bay fittings with both metal halide and high pressure sodium lamps were looked at. Additionally, different wall surfaces were investigated, namely red-grey, green-grey and blue-grey paints. A number of shuttlecocks were added, and the images rendered from the viewpoint of a player standing inside the court, using 15 different combinations of wall colouring and lamp type.
All simulation were produced with the RADIANCE suite of programs, developed by the Lawrence Barkely Laboratories.
Following on from studies using RADIANCE to simulate daylight conditions within sports halls, work is being carried out using scale models under the artificial sky to investigate the use of perforated metal screens to eliminate problems of glare and veiling reflectance.