Investigating the compatibility of the effect of light from the stained glass windows of traditional Iranian architecture with the human eye sensitivity curve and the biological clock of the human body

Document Type : Research Article

Authors

1 Ph.D. Student, Department of Architecture, Central Tehran Branch, Islamic Azad University, Tehran, Iran

2 Professor, Department of Architecture, Central Tehran Branch, Islamic Azad University, Tehran, Iran

3 Assistant Professor, Department of Architecture, Central Tehran Branch, Islamic Azad University, Tehran, Iran

4 Assistant Professor, Department of Mechanics, Yadegar-e-Emam Shahre-Rey Branch, Islamic Azad University, Tehran, Iran

Abstract

Human eye cells are stimulated by receiving light and sending appropriate commands to the body's internal glands. Ambient light affects the release of the hormone melatonin, which is responsible for regulating the biological clock of the human body. Also, the highest visual sensitivity of the human eye, based on the eye sensitivity curve, is in the wavelength range of 500 to 600 nm. The aim of this research is to study the effects of colored lights on human health by studying medical texts on the effects of colored light in the field of traditional Iranian architecture. The main question of the research is focused on whether the colored lights resulting from the stained glass windows of Iranian architecture correspond to the human eye sensitivity curve and the circadian rhythm and act to maintain the health of the human eye. The study and research are done in the form of studies and case studies. Also, the correlation method is used to investigate the effect of colored lights in Iranian architecture on health. For this purpose, case samples of Iranian stained glass windows were first selected and their dimensions and geometric shapes were collected. The passing wavelengths of the stained glass were measured and the transmitting wavelength diagrams were compared with the human eye sensitivity curve. The predominant share was calculated based on the percentage of the area of each color and the amount of light passing through each stained glass. The findings of this research prove the compatibility of the light effect from the colored windows of traditional Iranian architecture from two perspectives, compatibility with the eye sensitivity curve and also compatibility with the biological clock of the human body. In the range of 500 to 600 nm, the dominant share of transmitted light was yellow and green, and in the eye sensitivity curve, the maximum vision in this wavelength is yellow and green. In the wavelength of 460 nm, the predominant contribution of the light passing through the windows was a blue color. At this wavelength, the hypothalamus, which secretes the hormone melatonin and regulates the biological clock, is sensitive to blue light.

Keywords

References

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Journal of Architecture in Hot and Dry Climate
Volume 10, Issue 16
February 2023
Pages 52-65

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