Jean Kalman, the lighting expert, grew to understand what Brook wanted and improvised as he went along.

The world, according to the lighting experts, used to be fairly simple.

The technicians and lighting experts, by order of Samcharadse, had to scrounge everything required for decor from the mine or on outdoor work.

Five years ago, for instance, the decorator Robert Metzger hired a famous lighting expert to create a fixture for his show house room.

In another wartime activity, Hibben was appointed to a committee of lighting experts, to study blackout techniques for defending cities against possible bombing attacks.

Its task is to invite other lighting experts to take part in an international competition to select a modern rendering of the cobra.

It may, say lighting experts - but not very well.

Still, while such accessories are functional, some lighting experts say they compromise aesthetics.

Mr. Jousse sought out urban architects and theatrical lighting experts for ideas and technical training.

After some consideration it was decided to contact lighting experts in the field of high intensity light displays.