| Keywords |
Color temperature ; Lighting tyep Visual responses ; Glare ; Visual discomfort ; Lighting quality |
| Abstract |
The influences of lighting conditions, which is combined by color temperature and lighting types, on visual responses are discussed in this study. Visual annoyance tests were performed in a full-scale mock-up test space, which was prepared for a small private office environment. Lamps with color temperature of 3,500 K and 5,000 K were applied to a direct lighting type and direct/indirect lighting type. Results indicate that overall glare sensation for computer-based task was stronger than that of paper-based task. Color temperature of 3,500 K applied to a direct lighting type caused the worst glare. Overall, visual discomfort were not reported under all lighting conditions. The direct/indirect lighting type succeeded to ensure better comfort compared to the direct lighting type. The number of letters which were typed in showed no significant difference under all lighting conditions. In order to enhance good quality of lighting condition, the direct lighting type should ensure good color rendering, reduction of glare and prevention of tensed sensation. The direct/indirect lighting type condition should keep the space and desktop surface bright. |