Light and lighting encompass different dimensions of urban life, thus the harmony and coordination of this process with environment and urban space is of great importance. Due to the importance of mental patterns in urban planning, present article analyzes the relation between mental dimensions of lighting and the spatial improvement of Tehran metropolis. The present article is developmental an...

Introduction: Illumination standards especially Illumination Engineering Society of North America (IESNA) and Iran lighting standards (ILS) are just based quantitative measurements. However, lighting has psychological effects and can influence quality and quantity of productivity and comfort of workers. Therefore, Illumination standards were undergone some changes. EN 12464-1 standards focus on...

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Introduction: Visual comfort is an important and influential factor on safety, mental health, sleep quality, and musculoskeletal disorders of employees in the workplace. This study aimed to design and develop a questionnaire to assess the visual comfort of employees in the workplace. Methods: The study was performed on 101 participants (88 men and 13 women) in the food industry. First, the a...

Background and Aim: Undesirable lighting the work environment causes visual and non-visual effects in employers. The aim of this study was to compare the quantity and quality of combined and artificial lighting in daytime and its relationship with the indexes of mental performance. Methods: This study carried out at 65 rooms and on 81 employees randomly selected from different clusters. Measur...

Introduction: Due to their long work hours at environments with poor lighting, carpet weavers are at a risk of developing certain eye diseases. Improving health conditions and safety in the workplace, in particular supplying good lighting to carpet weaving workshops as an important environmental factor, is crucial to the health of carpet weavers. Materials and Methods: The present desc...