Ukukhanyisa kwe-LED akukwazi ukucabangela izinga lokushisa lombala kuphela
I-Humans Factor In Lighting, eyaziwa nangokuthi ukukhanya kwenduduzo, ibhekisela ekulungisweni kokukhanya njengoba abantu besebenza. Lo mqondo wokukhanyisa wavela eYurophu, ukuze uvumele abantu ukuthi bahlale endaweni ekhanyayo yokukhanyisa. Ama-LED ayimithombo yokukhanya okulula ukuyilawula engalungiswa ukuze ifane nomjikelezo webhayoloji, kodwa isadinga ukusatshalaliswa kwe-spectral nezimo zokushisa kombala.
Nakuba ukukhanya kungekona ukuphela kwesici esithinta i-Circadian Rhythm, kuyisici esibalulekile. Abanye ososayensi bakholelwa ukuthi ukukhanya kungathinta imizwelo yabantu, impilo namandla.
Izinzuzo nezingozi ze-LED
Ukusetshenziswa kwe-LED ekukhanyeni komuntu kunezinzuzo kanye nokubi. Isibonelo, ukukhanya okuluhlaza okwesibhakabhaka okokukhanya okumhlophe okupholile futhi eduze nokukhanya kwemvelo. Kuyasiza ukugxilisa ingqondo futhi kungasetshenziswa emakilasini abafundi nasemahhovisi. Kodwa-ke, izophinde ivimbele ukuba mnyama uma kuvezwe ekukhanyeni okuluhlaza isikhathi eside. Ukukhula kwe-melatonin kuthinta izinga lokulala, amasosha omzimba, futhi kungase kubangele izilonda zomzimba ezinjengomdlavuza.
Ngokocwaningo lwesayensi, ukukhanya okuluhlaza okwesibhakabhaka kungalawula inani le-insulin, ngakho-ke uma kuvezwa ukukhanya okuluhlaza okwesibhakabhaka isikhathi eside ebusuku, kuzodala ukumelana ne-insulin, okusho ukuthi i-insulin yehla futhi ushukela wegazi awukwazi ukulawulwa, futhi lokhu lesi simo singaholela ekukhuluphaleni, isifo sikashukela, nokuphezulu. Umfutho wegazi nezinye izifo.
Umklamo wokukhanyisa awukwazi nje ukucabangela izinga lokushisa lombala
Ekwakheni ukukhanyisa kwe-LED, ukusatshalaliswa kwamandla e-spectral kanye nezinga lokushisa lombala kufanele kubhekwe kokubili. Izinga lokushisa lombala livezwa ngezinga lokushisa eliphelele K, elimele izingxenye ze-spectral zemithombo yokukhanya ehlukene. Izinga lokushisa lombala lokukhanya okuluhlaza okwesibhakabhaka lingaphezulu kuka-5300K, okungelakushisa kombala ophakathi nendawo nophezulu futhi kunomqondo okhanyayo. Ngokuphambene, ukukhanya okubomvu nokukhanya okuphuzi kungokokukhanya kombala ofudumele, futhi izinga lokushisa lombala lingaphansi kuka-3300K, okwenza abantu bazizwe befudumele, benempilo futhi bekhululekile, kufanelekile ukusetshenziswa ekhaya.
Kodwa-ke, ngaphansi kwezimo zokushisa zombala ofanayo, kuzoba nokusabalalisa okuhlukile kwe-spectral ngenxa yababukeli abahlukene nezinye izimo ezifana nesimo sezulu nemvelo. Ngakho-ke, ochwepheshe bocwaningo lokukhanyisa bakholelwa ukuthi i-Spectral Energy Distribution (SED) iyisici esibalulekile esithinta iso lomuntu nomzimba.