Lub luag haujlwm ntawm iav flint
Kho qhov muag iav nrog cov ntsiab lus ntawm cov hlau lead oxide, siab refractive index, thiab cov nqi tawg ntau heev. Raws li qhov nce ntawm cov ntsiab lus txhuas oxide, nws tuaj yeem muab faib ua peb hom: lub teeb hnyav, hnyav dua thiab hnyav dua hnyav. Siv los ua cov lo ntsiab muag, prisms, tsom iav, thiab lwm yam hauv cov khoom siv kho qhov muag xws li tsom iav, tsom iav, koob thaij duab thiab pom. Siv nrog iav khob tshem tawm cov aberrations thiab chromatic aberrations ntawm lo ntsiab muag.