In this paper, we investigate how intensity of light in a space and ratios between light a space and in its surroundings affect perception of the atmosphere of the space, experience of co-presence and perception of the surrounding context. A preliminary field study in urban public transportation waiting areas showed, through observations and interviews, that the intensity of light influenced how participants experienced the waiting area and its urban surroundings. In this lab experiment, we investigate the perceived qualities of light levels in a controlled environment and thereby inform future field tests of light intensity and ratios in complex urban contexts. The lab setting consisted of two light zones that simulated 1) a public transportation waiting area and 2) the surrounding urban context. We surveyed thirty participants on their perceptions of six lighting scenarios with different light intensities and ratios and asked them to respond to questionnaires based on a semantic differential scale. Non-parametric data from the questionnaires were statistically analyzed. Luminance data were documented in high dynamic range (HDR) photos and luminance maps to document the light perceived by the human eye. Results revealed that participants perceived the atmosphere in the simulated waiting area as relaxed and private when luminance intensity was low. Furthermore, they perceived the lighting as harmonious and less glaring when luminance ratios between the waiting area and the surroundings were low. However, results also showed that higher intensity lighting in the surroundings increased object visibility but did not indicate that contrast influenced visibility.

在本文中，我们研究了空间中的光强度以及空间与周围环境之间的光之比如何影响对空间气氛的感知，共存体验和对周围环境的感知。通过观察和访谈，对城市公共交通等候区的初步现场研究表明，光的强度会影响参与者对等候区及其周围环境的体验。在此实验室实验中，我们研究了在受控环境中感知到的光照强度，从而为将来在复杂的城市环境中进行光照强度和光强比的现场测试提供了依据。实验室设置由两个亮区组成，它们模拟1）公共交通等候区和2）周围的城市环境。我们对三十名参与者进行了调查，以了解他们对六种具有不同光强度和比率的照明场景的看法，并要求他们根据语义差异量表对问卷进行回应。对问卷中的非参数数据进行了统计分析。亮度数据记录在高动态范围（HDR）照片和亮度图中，以记录人眼感知的光。结果表明，当亮度强度较低时，参与者认为模拟等候区的气氛轻松而私密。此外，当等候区与周围环境之间的亮度比很低时，他们认为照明是和谐的且不刺眼。然而，