| 摘要: |
| 健康城市背景下的各类建设活动不断强化对公众生活的健康关护，作为我国城市夜景建设的重要组成，媒体立面动态照明由于基础研究不足、标准规范缺失等问题引发了众多社会与环境问题。研究设计并搭建了一套用于评估媒体立面动态照明舒适感的实验装置，结合主观量表与眼动数据探讨了光色、动态持续时间、观察距离等关键变量下观察者的视觉舒适感变化规律。随后通过城市环境实验对实验室结论进行验证，结果表明二者在结论上具有较好一致性。具体包括：距离变量下视觉舒适感与观察距离呈现相反关系。亮度变量下可接受的亮度水平内亮度升高舒适感上升，而当亮度超出可接受范围时，更高亮度会引起舒适感的快速下降；最高亮度相较于平均亮度更易引发不适感。动态持续时间变量下舒适感与动态时长以正比关系为主导；多数被试更偏好3s及以上的动态持续时间。光色变量下在可接受的刺激强度内彩色光对个体间的影响差异明显，而白光提供的舒适感水平较为统一；当刺激超出可接受范围时，彩色光会带来更强不适感。结合研究结论提出媒体立面设计和管控过程中的相关建议和待完善内容，以助力媒体立面实践管控和后续更深入、广泛的研究。 |
| 关键词: 媒体立面 动态照明 舒适感 眼动 主观量表 |
| DOI： |
| 分类号:TU11 |
| 基金项目: |
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| Visual comfort oriented dynamic lighting evaluation of media facade —— Based on comparative analysis of laboratory and urban environment |
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FENG Kai,HAO Luoxi
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| Abstract: |
| As an important part of urban night scene construction in China, the dynamic lighting of media facade has caused many social and environmental problems. A set of experimental devices for evaluating comfort was built. The light color, dynamic duration, observation distance and other contents were discussed in combination with subjective questionnaires and eye movement data. The conclusions of the laboratory were verified by urban experiments. Specifically, with the increase of observation distance, the visual comfort increases. Within the acceptable brightness level, the comfort will increase with the increase of brightness, but when the brightness exceeds the acceptable range, a higher brightness will cause a rapid decrease of the comfort level; The highest luminance is more likely to cause discomfort than the average luminance. The relationship between the dynamic duration and the comfort is dominated by the direct ratio; Most subjects prefer the dynamic duration of 3s and above. Within the acceptable stimulus intensity, the influence of colored light on individuals is obvious, while the comfort level provided by white light is relatively uniform; When the stimulus is beyond the acceptable range, the color light will bring more discomfort. Finally, this paper puts forward suggestions and contents to be improved in the process of media facade design and control. |
| Key words: Media facade Dynamic lighting Comfort Eye movement Subjective scale |
