Licht-im-Terrarium: Literaturdatenbank
Licht-im-Terrarium: Literaturdatenbank |
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Park, D.-H., Oh, S.-T., & Lim, J.-H. (2019). Development of uvb led lighting system based on uv dose calculation algorithm to meet individual daily uv dose. Applied Sciences, 9(12). Added by: Sarina (03/11/2026, 15:46) Last edited by: Sarina (03/11/2026, 16:00) |
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| Resource type: Journal Article DOI: 10.3390/app9122479 ID no. (ISBN etc.): 2076-3417 BibTeX citation key: Park2019 View all bibliographic details  |
Categories: General Creators: Lim, Oh, Park Collection: Applied Sciences |
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Meine Sichtweise (Keine vollständige Zusammenfassung des Artikels! Meine Meinung muss nicht mit der Meinung der Autoren übereinstimmen! Bitte lesen Sie auch die Originalarbeit!)
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In diesem Paper stellen die Autoren ein Konzept vor, bei dem Menschen einen UV-Sensor (UV-Index Sensor TOCON_E2 von sglux) am Arm tragen und eine Smartphone App anhand der UV-Dosis entscheidet, ob sie tagsüber ausreichend UV erhalten haben oder zusätzlich unter eine UV-Lampe müssen. Ich finde es fantastisch und außergewöhnlich, dass hier ein hochwertiger UV-Index-Sensor verwendet wurde (Preis ca. 150€). Der Sensor wurde zusätzlich mit einem hochwertigen Spektrometer für Sonnenstrahlung vor Ort kalibriert.
Die Lampe kombiniert weiße LEDs mit 4 UVB LEDs (LG InnoTek, Korea; Stromverbrauch 4250 mW, Strahlungsleistung 20 mW -> 0,5% Effizienz ohne Vorschaltelektronik!). In Abbildung 8 ist das Spektrum gezeigt. Die Lampe hat 509 lux, NUV=1.49 mW/m² und aktinische Bestrahlungsstärke AUV = 0,997 mW/m². Die Lampe fällt damit unter Risikoklasse 0. Die Vitamin-D3 wirksame Strahlung DUV = 2.51 mW/m²
Die gebildete Vitamin-D Menge (IU) wird berechnet als:
[IU] = 49 * VUD [J/m²] * STF * PBE * AF / SPF
Added by: Sarina Last edited by: Sarina |
| Abstract |
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Ultraviolet B (UVB) in sunlight is known to promote health when humans are exposed to optimum sunlight. Proper exposure to ultraviolet B is essential to produce vitamin D in the body, which is a particularly important factor for health. However, there has been an increase recently in the number of people who are lacking sunlight exposure due to staying indoors. Avoiding ultraviolet (UV) rays leads to health deterioration. To solve this problem, a portable ultraviolet measuring device that provides users with the UV intensity information of outdoor sunlight has been developed while UVB Light Emitting Diode (LED) lighting technologies capable of providing UVB radiation have been studied. However, existing technologies are mere methods for providing information on ultraviolet rays and artificially exposing to ultraviolet rays, and there is a risk for the UV radiation amount to not meet the daily required UV dose. Therefore, in this paper, a UVB LED general lighting system based on a UV exposure calculation algorithm that supports users’ daily required UV dose is proposed. The proposed system is composed of an IoT (Internet of Things) UV measuring device that measures the UV dose indoors, as well as outdoors, UVB LED general lighting which can safely provide UVB doses at indoors, and a smartphone which provides information on the cumulative UV dose and the estimated amount of vitamin D while it controls UVB LED general lighting. In addition, it is possible to support users’ vitamin D synthesis by providing as much UV light as its shortage through UVB LED general lighting, based on an individual’s UV exposure amount through outdoor sunlight, using a smartphone implementing a UV dose calculation algorithm. In order to confirm the performance of the proposed system, a simulation was conducted assuming that users with skin types 2 and 3 performed outdoor activities within 30 min and entered the room. The result confirmed that the proposed lighting can provide users of all ages with the UV dose required per day.
Added by: Sarina Last edited by: Sarina |