Lighting in the Workplace as the Visual Environment That Affect the Occupant’s Mood: A Literature Review

Abstract

Lighting in the workplace is often assessed based on functionality. In line with scientific development, the research into lighting observes its effect on the occupant's health and psychology. This article discusses research publications related to the relationship between artificial lighting and mood, by reviewing relevant literature from journals, dissertations, theses, and books from the last 10 years. Some of the literature refers to the older sources; hence the study is expanded to cover, in certain cases, a publication period of more than 10 years ago. The first section of this review discusses the general definition of mood and its role in the workplace. The next section explains the visual requirements of a workplace environment, especially regarding the required standards and the lighting's effects on health. The third section of the paper discusses the relationship between the visual environment and mood, with particular reference to how lighting enters and affects mood. The final section of this discussion addresses previous research related to the visual environment and mood that can be categorized into three focal points: (i) illuminance level effects; (ii) correlated color temperature effect, and (iii) mixed influencing factors.

Lighting the Patient Room of the Future: Evaluating Different Lighting Conditions From the Patient Perspective

“…In other words, compared to what can be considered a normal daytime lighting condition, patients had negative perceptions of the morning conditions that may support circadian synchronization based on the MI and CS reported in Table 3. This is consistent with findings from other studies (Aryani & Suryabrata, 2020). For patients, the comfort with the lighting increased as the illuminance and CCT decreased between Conditions 1 and 3.…”

Sky-like interior light settings: a preference study

“…Acceptable light levels for visual task fulfillment can be achieved by a illuminance of 500 lx (according to DIN EN 12464-1). However, for evoking a maximum preference of a specific light setting, an illuminance of rather 850 lx up to 2,000 lx is needed (Boyce, 1970;Begemann et al, 1997;Manav, 2007;Khanh et al, 2019;Aryani et al, 2020). Nonetheless, unidimensional measures of the light level, such as illuminance, are usually not sufficient for adequately modeling and predicting human light preferences.…”

“…In summary, the illuminance positively correlates with the preference such that a higher light level leads to a more preferred lighting within the limits of the illuminance range considered in this paper (E v : 462 lx-490 lx). With regard to the findings of other preference studies in lighting, (see, e.g., Boyce, 1970;Manav, 2007;Khanh et al, 2019;Aryani et al, 2020), an evaluation of light levels of up to 2,000 lx should be considered in future experiments.…”

The Role of Interior Design in Achieving Healthy Workplaces According to Lighting Indicators of “WELL Standard”

“…And if the workers are provided with optimal environmental conditions, the work rate and performance will improve [17]. At the work place, the sense of sight is the most important compared to other senses and visual comfort is the most important thing to achieve the user satisfaction in terms of health and productivity of work and that good lighting leads to a better performance in terms of speed, less accidents and less absenteeism [18].…”