Daylight & EWINDOW®

Daylight is the most important lighting source to us, has accompanied us for centuries. Nowadays, studies have showed that daylight has great impact on our health, not only just give us light, but also improve our mood and physical health. EWINDOW® is an artificial daylight system, follows the features of daylight, aim to complement daylighting in many cases. Because daylight vary significantly with time, seasons, latitude and architecture structure.

Recommended literature:

Verderber, S. (February 1983). “Human Response to Daylighting in the Therapeutic Environment.” 1983 International Daylighting conference. Phoenix, AZ: General Proceedings; pg.415.
Robbins , Claude L. (1986). Daylighting Design and Analysis. New York: Van Nostrand Reinhold Company: pg.4-13.
Heerwagen, J.H. (1986). “The Role of Nature in the View from the Window.” 1986 International Daylighting Conference ProceedingsⅡ. November 4-7, 1986; Long Beach, CA; pg.430-437.
Vischer, J.C. (November 1986). “The Effects of Daylighting on Occupant Behavior in Buildings: New Directions for Research.” 1986 International Daylighting Conference Proceedings Ⅱ. California; pg.419-429.
Samuels, R. (1990).”Solar Efficient Architecture and Quality of Life: The Role of Daylight and Sunlight in Ecological and Psychological Well-Being.” Energy and the Environment Into the 1990s. Vol. 4, Oxford: Pergamon Press; pg.2653-2659.

Natural View

Meeting the need for contact with the outside living environment is an important psychological aspect linked to daylight (Robbins, 1986). Because ntural views tend to produce positive responses, they may be more effective in reducing stress, decreasing ansiety, holding attention, and improving mood.

Studies in 1979, 1981, and 1986 by Ulrich (Heerwagen 1986) support the effectiveness of natural views. EWINDOW® provide a vivid scene with sky, clouds and sunshine, reproduce daylight environment by man-made.

Natural Rhythms

Almost everything under the sun follows the rhythms of the sun. The biological clock is involved in many aspects of our complex physiology. We now know that all multicellular organisms, including humans, utilize a similar mechanism to control circadian rhythms.

A large proportion of our genes are regulated by the biological clock and , consequently, a carefully calibrated circadian rhythm adapts our physiology to the different phases of the day (Nobel Prize in Physiology or Medicine 2017).

EWINDOW® create a stronge daylight-like evironment, and it can synchronize the lighting ambient to the sun in 24 hours. It correspond with the natural daylight rhythms, means it correspond with our circadian system.

Natural Lighting

Daylight has great impact on our lives and it is an essential part of architecture. But it varies with many factors, such as architectures, latitude, climate, seasons. As an artificial lighting source, EWINDOW® don’t have these restrictions. It’s feasible to bring more daylighting to people.

It is also good news to architecture designers and lighting designers. EWINDOW® will release them from these restrictions, free them to introduce daylight lighting into architecture, inspire designers to accomplish more creative jobs.

Studies & Publications

Please check these links for more detailed information about Human Centric Lighting and Daylighting.

Light, Sight, and Photobiology by Rensselaer Polytechnic Institute for Lighting Futures; Vol.2, No.3. (1998)
Daylight in Buildings A source book on daylighting systems and components from LBNL with support from Energy Design Resources (2000)
A Literature Review of the Effects of Natural Light on Building Occupants by L. Edwards and P. Torcellini for NREL (2002)
Impact of Windows and Daylight Exposure on Overall Health and Sleep Quality of Office Workers A Case-Control Pilot Study by Drs. M.Boubekri, Ph.D., I.Cheung, B.A., K.J. Reid, Ph.D., Chia-Hui Wang and Phyllis C. Zee, M.D., Ph.D., F.A.A.S.M. for JCSM. (2014)
Discoveries of molecular mechanisms controlling the circadian rhythm by Jeffrey C. Hall, Michael Rosbash and Michael W. Young *Nobel Prize in Physiology or Medicine (2017)
Supporting health, wellbeing and performance of humans by Marion Ebel and Roumiana Kamenova for Lighting Europe (2018)