Lub teeb hluav taws xob yog ib qho khoom siv uas hloov hluav taws xob rau hauv lub teeb lub zog. Lub teeb hluav taws xob feem ntau hu ua lub teeb hluav taws xob.
Lub teeb yog electromagnetic yoj. Lub teeb tawm los ntawm lub teeb hluav taws xob thiab lub teeb ntawm qhov xwm txheej yog ob qho tib si electromagnetic tsis. Lub teeb hluav taws xob uas tawm lub teeb pom kev nrog lub wavelength ntawm 380-780nm yog hu ua lub teeb pom kev zoo. Ultraviolet rays thiab infrared rays yog lub teeb pom kev, thiab lub teeb hluav taws xob uas emits ob hom teeb no hu ua hluav taws xob qhov chaw.
Lub teeb hluav taws xob yog lub cev tseem ceeb ntawm lub teeb pom kev zoo, thiab nws tau ua tiav zoo hauv 200 xyoo dhau los. Tam sim no, muaj ntau tshaj 3000 hom hluav taws xob qhov chaw thiab ntau tshaj 50,000 specifications, uas tau tsim tej yam kev mob zoo rau noob neej kom nkag mus rau lub era ntawm lub teeb kab lis kev cai ntawm niaj hnub civilization.
Muaj ntau hom hluav taws xob qhov chaw. Raws li txoj cai ua haujlwm, lawv tuaj yeem muab faib ua ob pawg: cov khoom siv teeb pom kev zoo thiab cov pa roj tawm lub teeb. Cov hom tshwj xeeb yog raws li nram no:
1. Khoom siv lub teeb
1. Thermal radiation light source yog muab faib ua: incandescent teeb (lub tshuab nqus tsev incandescent teeb, gas-filled incandescent teeb) halogen tungsten teeb (iodine tungsten teeb, bromine tungsten teeb)
2. Electroluminescent teeb qhov chaw muab faib ua: electroluminescent teeb (EL lub teeb-emitting board) semiconductor teeb-emitting teeb (LED)
2. Gas paug lub teeb qhov chaw
1. Glow discharge teeb: neon teeb, neon teeb
2. Arc discharge teeb: cov teeb tsis tshua muaj siab (cov teeb fluorescent, cov teeb hluav taws xob tsis tshua muaj siab mercury) cov teeb hluav taws xob siab (carbon arc teeb, high-pressure mercury teeb, hlau halide teeb, high-pressure xenon teeb, high-pressure sodium teeb. )
