LED lighting PK daylight: which kind of office lighting is healthier? (two)

In addition, participants were asked to complete two questionnaires. The first one is SF-36, which includes 36 questions about health status. The second is the Pittsburgh Quality Index (PSQI) Pittsburgh sleep quality index, 19 questions need to be answered by the participants, and the other 5 questions were answered by the participant's bed partner and roommate. These questionnaires were used to obtain data on subjective sleep quality, sleep time, sleep duration, efficiency, and agitation. It also includes whether the body during the day is dysfunctional, whether or not to take sleeping pills at night.

Data from the Actiwatch body motion recorder showed that the volunteers working under the window environment slept more than 46 minutes per night than those who did not work under the window. Similarly, the PSQI based analysis also shows that the overall perceived sleep quality is better. The data also showed that they had better physiological function.

ARUP in the magical land of the United Arab Emirates, a magical building Al Bahar Towers project, from the direct use of daylight from the start, the entire building lighting design. You know what time the sun on the building is what kind of, can produce what effect on indoor lighting, which light to stop, which need to be put into the interior, for a whole year in different seasons sunlight simulation of the building, an important basis for the system, artificial light. ARUP conducted a considerable amount of data in the survey and rigorous analysis, and finally reached a building at different time points for different windows open and close the control program. The facade design mode of this cell close together, can achieve both keep out of direct sunlight, and does not affect the beauty of distance function, at the same time by the intelligent indoor lamps shooting two birds with one stone, induction control, it is worth mentioning that the ceiling lamp and an air tank, sensor, linear integration, so that the plane of the whole space looks neat clean. Because sleep time and quality are related to health, the researchers then examined the results of SF-36. Volunteers working in a windowless environment have two significant low points: self handicapping due to physical reasons, lack of vitality.

The researchers said: "people who work under windows have more sunlight than those who work in windowless environments, with better sleep quality and physical function, and a higher quality of life. "They added," we suggest that the design of the workplace should be spent on how to make the staff accept the issue of sunlight on the mind, so as to enhance the health and well-being of office workers. "

Overall, this study shows that the opportunity to give the office staff more exposure to sunlight can be a great help to sleep time and quality, so as to achieve a higher quality of life. Even if it's a simple way to get out of the sun to go out for a walk or go out for lunch, the researchers say the Architectural society should be aware of these.

Therefore, both for the lighting designer or business owners, how to make the office environment light environment better, it is not only the decoration, light environment can directly related to the company's benefits, in addition to see the sunlight, the LED era of good products that mimic sunlight is also worth looking forward to when. Of course, this study needs more research to exclude its limitations, such as in a larger model space research, excluding the impact of other factors such as caffeine, on whether the roof can achieve the same effect. Future research may help us to get the best time and intensity of work to improve health and happiness.