vai_a_storia   vai_a_organizzazione   vai_a_sedi   vai_a_personale   Area Riservata
    English English Version  

Optical design of a light-emitting diode lamp for a maritime lighthouse

  Articoli su Riviste JCR/ISI  (anno 2015)

Autori:  Jafrancesco D., Mercatelli L., Sansoni P., Fontani D., Sani E., Coraggia S., Meucci M., Francini F

Affiliazione Autori:  CNR-INO National Institute of Optics, Largo E. Fermi 6, 50125 Firenze Italy

Riassunto:  Traffic signaling is an emerging field for light-emitting diode (LED) applications. This sustainable power-saving illumination technology can be used in maritime signaling thanks to the recently updated norms, where the possibility to utilize LED sources is explicitly cited, and to the availability of high-power white LEDs that, combined with suitable lenses, permit us to obtain well-collimated beams. This paper describes the optical design of a LED-based lamp that can replace a traditional lamp in an authentic marine lighthouse. This source recombines multiple separated LEDs realizing a quasi-punctual localized source. Advantages can be lower energy consumption, higher efficiency, longer life, fewer faults, slower aging, and minor maintenance costs. The proposed LED source allows us to keep and to utilize the old Fresnel lenses of the lighthouse, which very often have historical value. (C) 2015 Optical Society of America

Rivista/Giornale:  APPLIED OPTICS
Volume n.:  54 (11)      Pagine da: 3252  a: 3262
DOI: 10.1364/AO.54.003252

*Impact Factor della Rivista: (2015) 1.598   *Citazioni: 8
data tratti da "WEB OF SCIENCE" (marchio registrato di Thomson Reuters) ed aggiornati a:  14/07/2019

Riferimenti visionabili in IsiWeb of Knowledge: (solo per sottoscrittori)
Per visualizzare la scheda dell'articolo su IsiWeb: Clicca qui
Per visualizzare la scheda delle Citazioni dell'articolo su IsiWeb: Clicca qui

INO © Istituto Nazionale di Ottica - Largo Fermi 6, 50125 Firenze | Tel. 05523081 Fax 0552337755 - P.IVA 02118311006     P.E.C.    Info