Introduction: Few studies were conducted to determine the effects of lighting on cognitive performance. However, they could not reach a decisive conclusion. This study investigated cognitive performance of university students exposed to different levels of lighting under laboratory conditions. Methods: In this experimental study, 33 subjects (age range 19-26 years) performed cognitive tests....

Introduction: In an educational environment, the quality of vision is integral to educational progress. Creating visual comfort and increasing efficiency and the desire to study are among the benefits of adjusting the lighting in classrooms and preventing visual impairment in the students. The present study was conducted to evaluate the degree of internal lighting in girls' schools across ...

Background & Objectives: Desirable and ergonomic lighting in the workplaces has a significant impact on the visual effects and improve the efficiency and productivity of employees. This study aims to evaluate the lighting system and feasibility of improving the artificial lighting system for comfort lighting in the workshop of the Fourth South Pars Gas Refinery. Methods: In this descriptive-...

Public lighting networks are constructed and maintained to provide social security and traffic safety. Due to the expansion of cities, the development in public lighting is inevitable. In addition to new investment, the public lighting service and maintenance program imposes high costs on distribution companies. Since performance assessment methods focus on a combination of key performance indi...

Background and aims: Workplaces with poor lighting conditions often created occupational accidents or illness. This occurs because light cause visual and nonvisual effects on numerous physiological variables, such as the human sleep-wake cycle and cognitive performance. Indoor lighting conditions, as one aspect of the work environment, Influence on occupant’s mood, well-being, task performance ...

Background and aims:The aim of the good quality lighting is that which balanced the needs of humans, economic and environmental issues, and created suitable lighting for a particular visual activity (e.g. reading, writing, etc.). Quality lighting is very important to incising productivity and learning of students. The main idea of energy-efficient lighting is to reduce the amount of electricity...