| Keywords |
Illuminance variations; Visual response; Gallery space; Visual comfort Spatial satisfaction |
| Abstract |
This study examines the effects of illuminance variations on the visual responses and perceptions in a gallery space for art paintings. A gallery space, where track lighting systems illuminating ten art paintings on walls, was prepared and experiments were conducted. LED lamps with a color temperature of 4,000 K were used to maintain illuminance levels of 50, 200 and 400 lx on the surface of art paintings. These lighting conditions were evaluated by fifteen female participants according to specific procedures. Results indicate that the color temperature of 4,000 K was rated warm but ineffective to view the art paintings. The illuminance of 50 lx was inappropriate to perceive art paintings clearly and the illuminance of 400 lx was unfavorable either. The perception for visual stimulus, visual distraction, visual fatigue and glare were not reported for all illuminance conditions. Multiple linear prediction models show that the visual comfort in the gallery space was affected by the appropriate brightness to view paintings, eye fatigue and visual stimulus. Overall spatial satisfaction was influenced by the appropriate brightness to view paintings, psychological comfort and lighting conditions that secure appropriate brightness. Psychological comfort correlated with overall spatial satisfaction and the degree of perceiving space cozy. |