Interior Lighting for Designers

worker must also perform, and (2) lighting of
the area in the worker’s field of view.
Sometimes the ambient room illumi-
nance in VDT areas is set low in the belief
that this improves screen visibility. The oppo-
site is true. While low quantities of ambient
light reduce screen reflections, the room
appears visually gloomy; there will also be
areas of high contrast between the bright

screen and the dark surround. Furthermore,

low ambient illuminance is unstimulating,

especially when contact with the outdoors

via windows is missing.

Indirect uplighting systems are some-

times used to avoid luminaire reflections in

the screen. The ceiling must be high enough to

allow pendant- or floor-mounted luminaires to

distribute light evenly (seefigure 13.21) or

INTERIOR LIGHTING FOR DESIGNERS

Figure 3.35

Figure 3.34