Kuj pom laser diode. Lub teeb xa hluav taws xob (LED) yog cov khoom siv hluav taws xob semiconductor uas tso tawm lub teeb pom kev thaum hluav taws xob hluav taws xob hla nws. Lub teeb tsis ci tshwj xeeb, tab sis nyob rau hauv feem ntau LEDs nws yog monochromatic, tshwm sim ntawm ib nthwv dej. Tshaj tawm los ntawm ib qho LED tuaj yeem yog xim liab (ntawm lub yoj ntawm kwv yees li 700 nanometers) rau xiav-violet (hais txog […]
