Abstract
This paper characterizes human subjective response to spatial distributions of light resulting from different uplight/downlight photometric distributions. An array of pendant-mounted linear fluorescent luminaires illuminated a 12.7×7.2 m room. Eleven light settings were established at constant horizontal illuminance, which differed in the percentage horizontal illuminance contribution from the uplight and downlight components. Two studies are reported where subjects evaluated the light settings using psychophysical assessments; the first study utilized paired comparisons and the second utilized semantic differential scaling. Findings include: 1) the walls and the ceiling contributed to the perception of overall brightness when the work plane illuminance was held constant, 2) the room appeared more spacious when more light was supplied indirectly, and 3) light settings where the indirect component had a horizontal illuminance contribution of 60% or more were favoured.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 243-260 |
| Number of pages | 18 |
| Journal | Lighting Research & Technology |
| Volume | 34 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jan 1 2002 |
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All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
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The subjective response to linear fluorescent direct/indirect lighting systems. / Houser, Kevin William; Tiller, D. K.; Bernecker, C. A.; Mistrick, Richard George.
In: Lighting Research & Technology, Vol. 34, No. 3, 01.01.2002, p. 243-260.Research output: Contribution to journal › Article
TY - JOUR
T1 - The subjective response to linear fluorescent direct/indirect lighting systems
AU - Houser, Kevin William
AU - Tiller, D. K.
AU - Bernecker, C. A.
AU - Mistrick, Richard George
PY - 2002/1/1
Y1 - 2002/1/1
N2 - This paper characterizes human subjective response to spatial distributions of light resulting from different uplight/downlight photometric distributions. An array of pendant-mounted linear fluorescent luminaires illuminated a 12.7×7.2 m room. Eleven light settings were established at constant horizontal illuminance, which differed in the percentage horizontal illuminance contribution from the uplight and downlight components. Two studies are reported where subjects evaluated the light settings using psychophysical assessments; the first study utilized paired comparisons and the second utilized semantic differential scaling. Findings include: 1) the walls and the ceiling contributed to the perception of overall brightness when the work plane illuminance was held constant, 2) the room appeared more spacious when more light was supplied indirectly, and 3) light settings where the indirect component had a horizontal illuminance contribution of 60% or more were favoured.
AB - This paper characterizes human subjective response to spatial distributions of light resulting from different uplight/downlight photometric distributions. An array of pendant-mounted linear fluorescent luminaires illuminated a 12.7×7.2 m room. Eleven light settings were established at constant horizontal illuminance, which differed in the percentage horizontal illuminance contribution from the uplight and downlight components. Two studies are reported where subjects evaluated the light settings using psychophysical assessments; the first study utilized paired comparisons and the second utilized semantic differential scaling. Findings include: 1) the walls and the ceiling contributed to the perception of overall brightness when the work plane illuminance was held constant, 2) the room appeared more spacious when more light was supplied indirectly, and 3) light settings where the indirect component had a horizontal illuminance contribution of 60% or more were favoured.
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UR - http://www.scopus.com/inward/citedby.url?scp=0036041676&partnerID=8YFLogxK
U2 - 10.1191/1365782802li039oa
DO - 10.1191/1365782802li039oa
M3 - Article
VL - 34
SP - 243
EP - 260
JO - Lighting Research and Technology
JF - Lighting Research and Technology
SN - 1477-1535
IS - 3
ER -