Adaptive light: a lighting control method aligned with dark adaptation of human vision
| Autor: | Yui Takemura, Toshiyuki Okano, Masaharu Ito, Keiko Okano, Yushi Shimizu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Adult
Male Adolescent Light genetic structures Computer science Intelligent lighting lcsh:Medicine Adaptation (eye) Dark Adaptation Article 03 medical and health sciences Young Adult 0302 clinical medicine Double-Blind Method Japan Humans Computer vision Visibility lcsh:Science Constant light Lighting Vision Ocular Multidisciplinary Cross-Over Studies business.industry 05 social sciences lcsh:R 050301 education Illuminance Cognitive neuroscience Female lcsh:Q Artificial intelligence sense organs Circadian rhythms and sleep Visual system business Sleep 0503 education 030217 neurology & neurosurgery Control methods |
| Zdroj: | Scientific Reports, Vol 10, Iss 1, Pp 1-12 (2020) Scientific Reports |
| ISSN: | 2045-2322 |
| Popis: | Light exposure before sleep causes a reduction in the quality and duration of sleep. In order to reduce these detrimental effects of light exposure, it is important to dim the light. However, dimming the light often causes inconvenience and can lower the quality of life (QOL). We therefore aimed to develop a lighting control method for use before going to bed, in which the illuminance of lights can be ramped down with less of a subjective feeling of changes in illuminance. We performed seven experiments in a double-blind, randomized crossover design. In each experiment, we compared two lighting conditions. We examined constant illuminance, linear dimming, and three monophasic and three biphasic exponential dimming, to explore the fast and slow increases in visibility that reflect the dark adaptation of cone and rod photoreceptors in the retina, respectively. Finally, we developed a biphasic exponential dimming method termed Adaptive Light 1.0. Adaptive Light 1.0 significantly prevented the misidentification seen in constant light and effectively suppressed perceptions of the illuminance change. This novel lighting method will help to develop new intelligent lighting instruments that reduce the negative effect of light on sleep and also lower energy consumption. |
| Databáze: | OpenAIRE |
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