I-lumens isilinganisoukukhanya okukhanyayo, noma inani eliphelele lokukhanya okubonakalayo okuvela emthonjeni,kulinganiswa ukuzwela kweso lomuntu kubude obuthile bokukhanya.Ama-lumens ayisilinganiso esingcono kakhulu ongasisebenzisa lapho uhlola ukuthi ukukhanya kuzoyikhanyisa kahle kangakanani indawo yamehlo omuntu.Iso lomuntu lizwela kakhulu ekukhanyeni ebangeni eliphuzi neliluhlaza le-spectrum, ngakho-keAmafotoni angu-100 okukhanya okuluhlaza anesilinganiso esiphezulu se-lumen kunezithombe ezingu-100 zokukhanya okuluhlaza okwesibhakabhaka noma amafotoni angu-100 okukhanya okubomvu.
Izitshalo zimunca ukukhanya okubomvu nokuluhlaza okwesibhakabhaka.I-Lumens ikhetha ukukhanya okuphuzi nokuluhlaza okuphuzi kanye nokukhanya okubomvu nokuluhlaza okwesibhakabhaka,ukwenza ama-lumens cishe isilinganiso esibi kakhulu samandla okukhanya esingenzeka sokuhlola ukuthi ukukhanya kuzozikhulisa kanjani izitshalo.
I-Lumen Weighting (ephuzi) iqhathaniswa nokusebenza kahle kwe-Photosynthetic (okuluhlaza):
Isilinganiso se-lumens sokubonakala komuntuukukhanya okukhanyayoihluke kuI-PAR / PPFD, elilinganisai-radiant flux- inani eliphelele lama-photon ku-spectrum ebonakalayo ngaphandle kwesisindo sokubonakala komuntu.Yield Photon Flux (YPF)ifana ne-lumens ngokuthi ama-photon anesisindo ngokusekelwe kubude bawo beza, kodwa i-YPF iwakala ngokusekelwe ekubeni lusizo kwawo esitshalweni kunasesweni lomuntu, futhi i-YPF ibheka ama-photon ngaphandle kwebanga lokubonwayo lomuntu.
Isikhathi sokuthumela: Apr-23-2022