Impacts of home lighting on human health

Ticleanu, Cosmin

doi:10.1177/14771535211021064

Cited by 27 publications

(14 citation statements)

References 121 publications

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“…In short, we must converge technological and biological evolution to preserve our health. The lighting industry must not only consider energy efficiency issues [ 21 ] but also lighting effects on human beings [ 22 , 23 ]. Lighting designed with the needs of people in mind takes both the visual and non-visual effects of light into account and is referred as human-centric lighting.…”

Section: Introductionmentioning

confidence: 99%

Human-Centric Lighting: Rare-Earth-Free Photoluminescent Materials for Correlated Color Temperature Tunable White LEDs

Menéndez‐Velázquez¹,

García-Delgado²,

Morales³

2023

IJMS

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Artificial lighting is ubiquitous in modern society, with detrimental effects on sleep and health. The reason for this is that light is responsible not only for vision but also for non-visual functions, such as the regulation of the circadian system. To avoid circadian disruption, artificial lighting should be dynamic, changing throughout the day in a manner comparable to natural light in terms of both light intensity and associated color temperature. This is one of the main goals of human-centric lighting. Regarding the type of materials, the majority of white light-emitting diodes (WLEDs) make use of rare-earth photoluminescent materials; therefore, WLED development is at serious risk due to the explosive growth in demand for these materials and a monopoly on sources of supply. Photoluminescent organic compounds are a considerable and promising alternative. In this article, we present several WLEDs that were manufactured using a blue LED chip as the excitation source and two photoluminescent organic dyes (Coumarin 6 and Nile Red) embedded in flexible layers, which function as spectral converters in a multilayer remote phosphor arrangement. The correlated color temperature (CCT) values range from 2975 K to 6261 K, while light quality is preserved with chromatic reproduction index (CRI) values superior to 80. Our findings illustrate for the first time the enormous potential of organic materials for supporting human-centric lighting.

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Section: Introductionmentioning

confidence: 99%

Human-Centric Lighting: Rare-Earth-Free Photoluminescent Materials for Correlated Color Temperature Tunable White LEDs

Menéndez‐Velázquez¹,

García-Delgado²,

Morales³

2023

IJMS

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“…It is known that electromagnetic radiation of various ranges can have both negative and positive effects on a human organism, in particular, on the nervous and the cardiovascular systems, as well as on the immune and endocrine systems and other internal organs and functional systems [1][2][3][4][5][6] . The aim of this work is to study, using an Automated pulse diagnostic system (APDS), the quantitative effect of optical radiation of the two extreme colors of the optical range (red and blue) on the functional state of the human internal organs in order to continue developing technologies for managing human mental and physiological state 6,7 .…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic effects on the functional state of individual organs and systems of the human body

Boronoev,

Pupysheva,

Ompokov

et al. 2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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A change in the frequency spectrum of a person's pulse under the influence of light of different wavelengths has been established. It has been shown that in the light stimulation phase, different colors cause functional changes in the internal organs in the subjects. At the same time, the effects of the photostimulus on the internal organs are not equivalent and depend on the initial functional state and the typology of the subject. Depending on the type of exposure, the same photostimulus can cause contrasting changes in the frequency parameters of pulse signals recorded on the radial arteries of human wrists.

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“…Thus, we propose an approach that employs a soft and alerting sunrise simulation, utilizes natural light if applicable, and appropriately lowers the bedroom temperature for awakening a sleeper tenderly and gradually to gain full alertness. This approach is inspired by the abovementioned scientific implications and the advice in [13][14][15] that lighting design in rooms and buildings has to take health issues into account. Moreover, this approach is proposed herein because it seems promising for achieving the design goal and improving one's wellbeing.…”

Section: Introductionmentioning

confidence: 99%

Toward Sustainable Gentle Awakenings and Sleep Inertia Mitigation: A Low-Cost IoT-Based Adaptable Lighting and Temperature Control Approach

Huang

Chou

et al. 2022

Sustainability

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In this paper, our design aims to assist in sleep inertia reduction and avoid the startle response and irritation caused by alarm-made unpleasant wakeup stimuli. Thus, we propose an approach that employs a soft and alerting sunrise simulation, conditionally utilizes natural light, and appropriately lowers the bedroom temperature for awakening a sleeper tenderly and gradually to gain full alertness. This approach is inspired by known scientific implications confirming the effectiveness of lights and temperatures on wakefulness. In this regard, we present an economical do-it-yourself digital tech-assisted system for bedroom lighting and temperature control. The system design is based on the smartphone and Internet of Things (IoT) technology. We develop the hardware and software in the system for implementing three IoT-based control tasks. One is the tuning of artificial light brightness using the pulse width modulation technique. Another is the opening of the window curtain using stepper motor control and light detection. The other is the activation of the air-conditioning setting using an infrared remote control and temperature detection. We construct a testbed for conducting experiments. Experimental results demonstrate that the proposed system can execute task requirements satisfactorily. The proposed system is promising for achieving our goal. It embodies features of sustainability.

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Impacts of home lighting on human health

Cited by 27 publications

References 121 publications

Human-Centric Lighting: Rare-Earth-Free Photoluminescent Materials for Correlated Color Temperature Tunable White LEDs

Human-Centric Lighting: Rare-Earth-Free Photoluminescent Materials for Correlated Color Temperature Tunable White LEDs

Electromagnetic effects on the functional state of individual organs and systems of the human body

Toward Sustainable Gentle Awakenings and Sleep Inertia Mitigation: A Low-Cost IoT-Based Adaptable Lighting and Temperature Control Approach

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