Lub Teeb Dawb Tsim Li Cas
Raws li lub teeb emitting diodes yog ze li ntawm monochromatic lub teeb qhov chaw uas tawm lub teeb uas muaj ib qho xim thaum dawb yog qhov tseem ceeb ntawm lub teeb ntawm ob lossis ntau xim (lossis wavelengths), tam sim no txoj kev nyiam tshaj plaws rau kev tsim lub teeb dawb los ntawm LED. module yog los ntawm kev siv ib qho xim LED (feem ntau yog xiav LED) thiab lub wavelength converting element (uas feem ntau yog daj phosphor). Cov xim tawm los ntawm LED feem ntau yog txiav txim siab los ntawm cov khoom uas nws tau tsim. Ib qho piv txwv ntawm cov LED dawb muaj ib pob ntawm lub teeb xiav LED, ua los ntawm gallium nitride (GaN), coated nrog phosphor feem ntau tshwj xeeb tshaj yog Yttrium Aluminium Garnet (YAG) uas ua haujlwm raws li lub wavelength converting element (WCE) los tsim ib lub teeb pom kev zoo. xim dawb ntawm qhov xav tau xim kub. Los ntawm kev hloov qhov sau cov feem ntau muaj pes tsawg leeg lossis feem pua qhov hnyav ntawm lub teeb xim dawb tuaj yeem hloov kho. Cov yam ntxwv los ua kom pom lub teeb dawb thoob plaws qhov chaw chromaticity loj yog qhov zoo rau kev siv teeb pom kev sib txawv.
