Browsing by Subject "Artificial lighting"

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Open Access
Analysis of residential lighting in Poland: results from a winter term survey
(2021-09-01) Pracki, P.; Aslanoğlu, R.; Kazak, J. K.; Ulusoy, B.; Yekanialibeiglou, Sepideh
In 2020, an international project on residential lighting started and was implemented in four countries (Poland, Sweden, UK and Turkey). This article presents the results of a survey carried out in Poland, in the winter term between November 2020 and January 2021. A total of 125 Polish residents (59 women, 65 men, one person did not wish to specify gender) participated in the survey. A variety of data was collected on the respondents and their assessments as well as on their satisfaction with day- and artificial lighting in residential living spaces. The results from questionnaires were analyzed with STATISTICA 13.3. Descriptive statistics and Spearman rank order correlations were adopted to identify the light-related aspects, lighting patterns, and respondents’ perception of day- and artificial lighting conditions in living areas. The results revealed that satisfaction with daylighting in the living area, both in summer and winter, was significantly correlated with daylighting level, daylighting uniformity, sunlight exposure and view-out. The results also revealed that satisfaction with artificial lighting was significantly correlated with artificial lighting level, artificial lighting uniformity and color rendering. The results provide valuable information on lighting and factors that influence the luminous environment in residential living spaces.
Open Access
Effects of different lighting arrangements on space perception
(Taylor & Francis, 1999) Manav, B.; Yener, C.
The idea to improve the quality of lighting design in interior spaces has gained importance in the last years. This experimental study concentrateson the quality of lighting and the relation between lighting arrangements and perception. A room having four different lighting arrangements was prepared and the differences between the perception of the participants under each lighting arrangement was analysed. The results suggested that different lighting arrangements affect perception. Wall washing enhanced the impressions of clarity and order, cove lighting enhanced spaciousness and order and uplighting made the same space relaxing, private and pleasant.
Open Access
Effects of different lighting types on visual performance
(Taylor & Francis, 2004) Ödemis, K.; Yener, C.; Camgöz, N.
This study investigates whether different lighting types have an effect on the visual performance of office workers. Wall washing, cove lighting and uplighting were tested as they are the most widely used lighting types in offices, after general lighting. The lighting level chosen was 275 lx. The experiments were conducted in a controlled environment with different lighting types. Ninety participants took part in three groups of thirty. The performance measurements for each group were done in different lighting sequences. The data collected were statistically analysed. The effects of age, gender and eye deficiency of the participants on performance were also investigated.
Open Access
Impact of lighting arrangements and illuminances on different impressions of a room
(Elsevier, 2007) Durak, A.; Camgöz Olguntürk, N.; Yener, C.; Güvenç, D.; Gürçinar, Y.
This study explores whether different lighting arrangements (general lighting, wall washing and cove lighting) and different illuminances (500 and 320 lux) could affect the perception of the same space. An experimental study was conducted to investigate how the qualitative aspects of space (the impressions of a space) could be enhanced with lighting. Hundred participants were first asked to choose the most suitable lighting arrangement for each impression (clarity, spaciousness, relaxation, privacy, pleasantness and order) under the 500 lux illuminance. In the second stage, they were asked to compare the two illuminances (500 and 320 lux) for the lighting arrangement they selected in the first stage. There was a statistically significant relation between impressions and lighting arrangements, also between impressions and lighting levels. Thus, different lighting arrangements and lighting levels could be used to enhance the clarity, spaciousness, relaxation, privacy, pleasantness and order of a room. The results of this study found most suitable lighting arrangements with their illuminances for each impression, which is reported in the paper. © 2006 Elsevier Ltd. All rights reserved.