Dab tsi yog qhov txawv thiab qhov zoo ntawm LED teeb thiab lub zog txuag hluav taws xob thiab lub teeb incandescent?
1. LED Teeb
(1) LED teeb tseem hu ua lub teeb emitting diode, nws yog ib qho khoom siv hluav taws xob semiconductor, tuaj yeem hloov hluav taws xob ncaj qha rau hauv lub teeb. Lub plawv ntawm LED yog ib lub semiconductor wafer, ib kawg ntawm uas yog txuas mus rau lub bracket, lwm kawg yog txuas mus rau lub zoo ncej ntawm lub hwj chim mov, kom tag nrho cov wafer yog encapsulated los ntawm epoxy resin. Semiconductor wafers muaj peb seem, ib qho yog P-hom semiconductor, nyob rau hauv uas lub qhov predominate, lwm kawg yog N-hom semiconductor, feem ntau electrons nyob rau sab no, thiab feem ntau yog ib mus rau tsib lub voj voog ntawm quantum qhov dej hauv nruab nrab. . Thaum cov hluav taws xob tam sim no ua rau ntawm lub nti los ntawm cov hlau, cov hluav taws xob thiab qhov tau raug thawb mus rau hauv qhov dej vector, qhov twg cov hluav taws xob sib txuas nrog lub qhov thiab tom qab ntawd tawm lub zog hauv daim ntawv ntawm photons. Qhov no yog lub hauv paus ntsiab lus ntawm LED luminescence.
(2) LED teeb muaj ntau yam zoo, xws li qhov me me, kev siv hluav taws xob tsawg, lub neej ntev, tsis muaj tshuaj lom thiab tiv thaiv ib puag ncig. LED teeb thiab teeb pom kev zoo los ntawm sab nraum zoov kho kom zoo nkauj, engineering teeb pom kev zoo, maj mam tsim mus rau hauv tsev teeb pom kev zoo.
2. Lub teeb txuag hluav taws xob
(1) Lub teeb txuag hluav taws xob, tseem hu ua compact fluorescent teeb (CFL teeb luv luv) muaj qhov zoo ntawm lub teeb pom kev zoo (5 zaug ntau npaum li lub teeb zoo tib yam), pom tseeb zog txuag cov nyhuv, lub neej ntev (8 zaug ntev dua. raws li lub teeb zoo tib yam), me me, yooj yim siv thiab lwm yam. Nws txoj haujlwm ua haujlwm yog qhov pib zoo ib yam li cov teeb fluorescent.
(2) Tsuas yog cov xim dawb (lub teeb txias), lub teeb txuag hluav taws xob kuj muaj xim sov (lub teeb sov). Feem ntau hais lus, nyob rau hauv tib lub wattage, lub teeb txuag hluav taws xob tuaj yeem txuag tau 80 feem pua lub zog dua li lub teeb incandescent, nrog rau qhov nruab nrab lub neej txuas ntxiv ntawm 8 zaug thiab tsuas yog 20 feem pua ntawm cov hluav taws xob thermal. Nyob rau hauv cov xwm txheej tsis nruj, 5w lub teeb txuag hluav taws xob tuaj yeem suav tias yog lub teeb ci ntawm 25w, 7w lub zog txuag hluav taws xob txog 40w thiab 9w lub zog txuag hluav taws xob txog 60w.
3. Lub teeb incandescent
(1) Lub teeb incandescent tseem hu ua lub teeb hluav taws xob, nws txoj hauv kev ua haujlwm yog cov hluav taws xob tam sim no los ntawm cov filament (tungsten filament, melting point ntawm ntau tshaj 3000 degrees Celsius) thaum tsim hluav taws xob, muab kauv filament tas li sib sau cov cua sov, ua rau filament kub. mus rau 2000 degrees Celsius saum toj no, filament nyob rau hauv lub xeev ntawm incandescence, zoo li yog cov liab hlau yuav emit lub teeb los ntawm lub teeb. Qhov kub ntawm cov filament ntau dua, lub teeb ci dua yuav raug tso tawm. Nws yog hu ua incandescent teeb. Thaum lub teeb incandescent emit lub teeb, ib tug loj npaum li cas ntawm cov hluav taws xob yuav hloov mus rau hauv thermal zog, tsuas yog ib feem me me uas yuav tsum tau hloov mus rau hauv lub teeb muaj txiaj ntsig.
(2) Lub teeb emissions los ntawm incandescent teeb yog panchromatic, tab sis muaj pes tsawg leeg ntawm ntau yam xim yog txiav txim los ntawm luminous khoom (tungsten) thiab kub. Qhov sib npaug tsis sib npaug ua rau cov xim ntawm lub teeb tsis sib haum, yog li cov xim ntawm cov khoom hauv cov teeb ci incandescent tsis txaus.
(3) Lub neej ntawm cov teeb ci incandescent muaj feem xyuam rau qhov kub thiab txias, vim tias qhov kub siab dua, qhov yooj yim dua cov filament yuav sublimated. Cov txheej txheem ntawm blackening ntawm ob kawg ntawm lub teeb fluorescent yog tias sublimation ntawm tungsten xaim ncaj qha hloov mus rau tungsten gas, uas blackens thaum nws ua tau raws li phab ntsa ntawm lub teeb kub thiab ces sublimates ntawm phab ntsa ntawm lub teeb. Thaum lub tungsten hlau yog sublimated rau nyias, nws yog ib qho yooj yim mus hlawv tawm tom qab electrified, yog li xaus lub teeb lub neej. Yog li ntawd lub zog ntawm lub teeb incandescent yog loj dua.
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