Rau tib neeg, lub teeb reacts nrog lub luv, nruab nrab, thiab ntev photoreceptors nyob rau hauv lub qhov muag, cia peb pom xim. Rau cov nroj tsuag, lub teeb reacts nrog chlorophyll thiab cog pigments los txhawb kev loj hlob. Piv txwv li, chlorophyll absorption nkhaus yog lub luag haujlwm tseem ceeb rau photosynthesis los txhawb kev loj hlob ntawm cov nroj tsuag. Cog pigments yog cov sensors ntawm cov nroj tsuag uas teb rau ib puag ncig thiab kho lawv cov duab.
Cov kev ntsuas ntawm tib neeg lub zeem muag tsis tuaj yeem siv rau kev cog teeb pom kev zoo vim tias cov teeb pom kev zoo ntawm cov nroj tsuag yog qhov tseem ceeb raws li photons. Piv txwv li, photon flux (PF) ntsuas tus naj npawb ntawm photons tawm ntawm lub teeb hauv μmol / s, thaum photon flux density (PFD) ntsuas tus naj npawb ntawm photons ncav cuag cov nroj tsuag. Tshwj tsis yog cov teeb pom kev zoo ntawm LED kuj tseem siv los ua cov teeb pom kev zoo, cov yam ntxwv xim xws li xim rendering Performance index (CRI) thiab correlated xim kub (CCT) tsis cuam tshuam rau cov teeb pom kev zoo.
