Lumens ni igipimo cyaluminous flux, cyangwa igiteranyo cyurumuri rugaragara ruturuka kumasoko,uburemere bwijisho ryumuntu kwiyumvamo uburebure bwumucyo.Lumens nigipimo cyiza cyo gukoresha mugihe usuzumye uburyo urumuri ruzamurikira ahantu amaso yumuntu.Ijisho ryumuntu ryumva cyane urumuri rwumuhondo nicyatsi kibisi, bityoFotone 100 yumucyo wicyatsi ifite lumen irenze fotone 100 yumucyo wubururu cyangwa fotone 100 yumucyo utukura.
Ibimera bikurura urumuri rutukura nubururu.Lumens nibyiza uburemere bwumuhondo nicyatsi nicyatsi-gitukura nubururu butukura nubururu,gukora lumens hafi yo gupima ubukana bwumucyo mubi bishoboka mugusuzuma uburyo urumuri ruzakura ibimera.
Ibiro bya Lumen (umuhondo) na Photosynthetic Efficiency (icyatsi):
Ibipimo bya Lumens byerekana abantu-bigaragaraluminous fluxBitandukanye naPAR / PPFD, Ingeroimirasire- umubare rusange wa fotone muburyo bugaragara nta buremere bwabantu bugaragara.Tanga Photon Flux (YPF)ni nka lumens muri iyo fotone iremerewe ukurikije uburebure bwumuraba wazo, ariko YPF irapima ukurikije akamaro kayo kukimera aho kuba ijisho ryumuntu, kandi YPF ifata fotone hanze yumuntu.
Igihe cyo kohereza: Apr-23-2022