What principle does the law of reflection illustrate in lighting design?

The principle illustrated by the law of reflection in lighting design is that light reflects at equal angles of incidence. This means that when a light ray strikes a surface, the angle at which it arrives (the angle of incidence) is equal to the angle at which it departs (the angle of reflection). This principle is fundamental in lighting design as it helps predict how light will interact with various surfaces, enabling designers to strategically position lights to achieve desired effects and control how light distributes throughout a space.

Understanding this law is critical for creating effective lighting arrangements, as it guides decisions about the placement of fixtures, the choice of reflective materials, and the overall layout to ensure that light is utilized efficiently and effectively in an environment.