Directional lighting to emphasize a particular object or to draw attention to a part of the field of view.
The dissipation of light within a surface or medium.
The process by which the eye changes focus from one distance to another.
The process by which the visual system becomes accustomed to more or less light than it was exposed to during an immediately preceding period. It results in a change in the sensitivity of the eye to light.
Alternating Current (AC)