Interior Lighting for Designers

Temperature, color, 45
Texture, grazing light, 33–34
T5 fluorescent lamps, rare-earth phosphores, 86–87.
See alsoFluorescent lamps
Three-dimensional form:
artwork lighting design, 224
brightness, 31, 33–35
Three-way switch, 140
Timers, switch control, 140
Toggle switch, 139
Total internal reflection, 115, 118
Track-mounted luminaires, described, 154
Transformers, described, 99–100
Transmission, light control, 109, 111
Transmitted sparkle, described, 41–42
Trigger-start ballast circuits, fluorescent lamps, 86
Trigonometric functions:
refraction, 112
sines and cosines of angles, table, 261
Tubular skylights, daylight design, 55–56
Tungsten, incandescent lamp filaments, 64, 68
Tungsten-halogen lamps:
described, 73–75
open-reflector downlight, 154

U
Ultraviolet lights, artwork lighting design, 227–229
Uplights:
ambient light design, 221–224
brightness, 25, 26–27, 28, 29
ceiling plane wash lights, 183–184

V
Valences, multidirectional luminaires, 198, 202
Variation:
daylight, 51
psychology, 23
reflected glare, 41
Vegetation, shading devices, 59–60
Venetian blinds, shading devices, 57

Vertical surface illumination:

artwork lighting design, 225

brightness, 31

design, 214–218

subjective impressions, 23

Very-high output (VHO) lamps, fluorescent lamps, 87

Video display terminals (VDTs):

ambient light, 221, 223–224

luminance ratios, 236

reflected glare, 39–41

task lights, 219–220

Visible light, perception, 3–6

Visual clarity, design, 209–213

Visual comfort probability (VCP), defined, 39

W

Wall lighting:

brightness, 31

subjective impressions, 23

Wash lights, 169–186

asymmetric, 169–178

ceiling plane, 182–193

linear, 179–182

matte vertical surface illumination, 216–218

texture, 34

Wattage:

incandescent lamps, 69

power consumption, 138

relative lamp watts for equal quantity of light, table,

259

Watts per square foot calculations, 138

Wavelengths:

color perception, 9, 43

visible light, 3–4

Windows.See alsoDaylight

daylight design, 52–53

glazing materials, 60

Wireless remote switch control, 141

Wire size and length recommendations, table, 260

Wiring, electricity, 136

Workplane, brightness contrast, 11

INTERIOR LIGHTING FOR DESIGNERS