Ib lub lens ultraviolet (UV lens) yog lub lens tshwj xeeb uas tuaj yeem hloov kho cov hluav taws xob tsis zoo rau lub teeb pom kev zoo thiab tom qab ntawd ntes nws los ntawm lub koob yees duab. Vim tias lub lens tshwj xeeb, daim ntawv thov daim ntawv thov tau tshwj xeeb, xws li kev tshawb nrhiav kev ua txhaum cai rau kev tshawb nrhiav, thiab ...