Yeelen minw be ni yeelen ye, olu ka baara tɛ kelen ye sabu u ka sigicogo n’u ka suguyaw lo. Dɔw be se ka nɛgɛkunbɛnnanw tanga, ka yeelen ultravioletw yira wala ka yeelen ultraviolet sama ani k’u yɛlɛma ka kɛ funteni fanga ye min tɛ mɔgɔ tɔɔrɔ; dɔw be se ka molekiliw wala jɛnkuluw ka nisɔndiya min be nisɔndiya la, o faga ni yeelen ultraviolet ye walisa ka kɔsegi dugukolo cogoya la, ka fotookisidasiyɔn ka kɛcogo bɔ yen wala k’a sumanya. dɔw be radikali minw be bɔ foto-redox fɛ, olu minɛ, o cogo la, radikali yɛlɛmani min be kɛ sababu ye ka fɛɛn kɔrɔya, ani min b’a to o fɛɛn tɛ tiɲɛ ni yeelen ultraviolet ye.
Ka yeelen kɔrɔ bali ani ka yeelen bɔ a la, yeelenbɔlan sifa fila ni kɔ minw ka baarakɛcogo tɛ kelen ye, u be kɛ ka yeelen ultraviolet minɛ yɔrɔ wɛrɛw la. A be se ka nɔɔ ɲuman min sɔrɔ, yeelenbɔlan kelen tɛ se ka min sɔrɔ.
O ultraviolet absor min farala tile latangafɛnw kan, o be ni tile latangalan ye min basiginin be ultraviolet yeelenw jɛnsɛnni wala u samacogo kan farikolo kan, walisa farigolo kana ultraviolet ka tiɲɛni bali wala k’a dɔgɔya.
