Cia peb txheeb xyuas qhov zoo thiab qhov tsis zoo ntawm txhua lub teeb ntawm no.
1.Incandescent teeb
Lub teeb incandescent kuj hu ua qhov muag teeb.Nws ua haujlwm los ntawm kev tsim hluav taws xob thaum hluav taws xob dhau los ntawm filament.Qhov kub ntawm cov filament ntau dua, lub teeb ci dua.Nws hu ua lub teeb incandescent.
Thaum lub teeb incandescent emits lub teeb, ib tug loj npaum li cas ntawm cov hluav taws xob hluav taws xob hloov mus rau hauv lub tshav kub lub zog, thiab tsuas yog ib tug me me npaum li cas yuav tsum tau hloov mus rau hauv lub teeb muaj txiaj ntsig.
Lub teeb emissions los ntawm incandescent teeb yog tag nrho-xim teeb, tab sis qhov sib piv ntawm txhua lub teeb xim yog txiav txim los ntawm cov khoom siv luminescent (tungsten) thiab kub.
Lub neej ntawm lub teeb incandescent muaj feem xyuam rau qhov kub ntawm cov filament, vim tias qhov kub siab dua, qhov yooj yim dua cov filament yuav sublimate.Thaum lub tungsten hlau yog sublimated rau ib tug kuj nyias, nws yog ib qho yooj yim mus hlawv tawm tom qab energized, yog li xaus lub neej ntawm lub teeb.Yog li ntawd, qhov siab dua lub zog ntawm lub teeb incandescent, lub neej luv dua.
Disadvantages: Ntawm tag nrho cov teeb pom kev zoo uas siv hluav taws xob, lub teeb incandescent yog qhov tsawg kawg nkaus.Tsuas yog ib feem me me ntawm cov hluav taws xob hluav taws xob uas nws siv tau tuaj yeem hloov mus rau hauv lub teeb lub zog, thiab qhov seem yog poob rau hauv daim ntawv ntawm lub zog hluav taws xob.Raws li lub sijhawm teeb pom kev zoo, lub neej ntawm cov teeb no feem ntau tsis ntau tshaj 1000 teev.
2. Cov teeb fluorescent
Nws ua haujlwm li cas: Lub raj fluorescent tsuas yog lub raj kaw cov pa tawm xwb.
Lub raj fluorescent tso siab rau cov mercury atoms ntawm lub teeb lub raj kom tso tawm ultraviolet rays los ntawm cov txheej txheem ntawm cov pa tawm.Txog 60% ntawm kev siv hluav taws xob tuaj yeem hloov mus rau UV teeb.Lwm lub zog yog hloov mus rau lub zog cua sov.
Cov tshuaj fluorescent nyob rau sab hauv ntawm lub raj fluorescent absorbs ultraviolet rays thiab emits pom lub teeb.Cov tshuaj fluorescent sib txawv emit lub teeb pom kev sib txawv.
Feem ntau, kev hloov dua siab tshiab ntawm ultraviolet lub teeb rau pom lub teeb yog li 40%.Yog li, qhov ua tau zoo ntawm lub teeb fluorescent yog li 60% x 40% = 24%.
Disadvantages: Qhov tsis zoo ntawmfluorescent teebyog tias cov txheej txheem tsim khoom thiab kev ua qias tuaj ib puag ncig tom qab lawv tau muab pov tseg, feem ntau yog cov pa phem mercury, tsis yog ib puag ncig tus phooj ywg.Nrog rau kev txhim kho ntawm cov txheej txheem, cov pa phem ntawm amalgam yog maj mam txo.
3. Lub teeb txuag hluav taws xob
Lub teeb txuag hluav taws xob, tseem hu ua compact fluorescent teeb (abbreviated liCFL teebtxawv teb chaws), muaj qhov zoo ntawm kev ua haujlwm siab luminous (5 npaug ntawm cov qij zoo tib yam), pom tseeb zog-txuag nyhuv, thiab lub neej ntev (8 npaug ntawm qhov muag teev).Me me thiab yooj yim rau siv.Nws ua haujlwm zoo ib yam li lub teeb fluorescent.
Qhov tsis zoo: Cov hluav taws xob hluav taws xob hluav taws xob ntawm lub zog txuag hluav taws xob kuj los ntawm cov tshuaj tiv thaiv ionization ntawm electrons thiab mercury gas.Nyob rau tib lub sijhawm, lub teeb txuag hluav taws xob yuav tsum tau ntxiv cov phosphor tsis tshua muaj hauv ntiaj teb.Vim lub radioactivity ntawm tsawg lub ntiaj teb phosphors, lub zog txuag teeb tseem yuav tsim hluav taws xob ionizing.Piv nrog rau qhov tsis paub tseeb ntawm hluav taws xob hluav taws xob hluav taws xob, qhov teeb meem ntawm hluav taws xob ntau dhau rau tib neeg lub cev yog qhov tsim nyog rau kev saib xyuas.
Tsis tas li ntawd, vim muaj kev txwv ntawm txoj cai ua haujlwm ntawm lub teeb txuag hluav taws xob, cov mercury hauv lub teeb lub raj yog khi los ua cov pa phem tseem ceeb.
4.LED teeb
LED (Lub Teeb Emitting Diode), lub teeb-emitting diode, yog ib qho khoom siv hluav taws xob semiconductor uas tuaj yeem hloov hluav taws xob hluav taws xob rau hauv lub teeb pom kev, uas tuaj yeem hloov hluav taws xob ncaj qha rau hauv lub teeb.Lub plawv ntawm LED yog semiconductor nti, ib kawg ntawm nti yog txuas rau lub bracket, ib kawg yog qhov tsis zoo electrode, thiab lwm kawg yog txuas nrog lub zoo electrode ntawm lub hwj chim mov, kom tag nrho cov nti yog encapsulated. los ntawm epoxy resin.
Lub semiconductor wafer muaj ob feem, ib feem yog P-hom semiconductor, nyob rau hauv uas lub qhov dominate, thiab lwm kawg yog ib tug N-hom semiconductor, qhov twg electrons yog mas.Tab sis thaum ob lub semiconductors txuas nrog, PN kev sib tshuam yog tsim los ntawm lawv.Thaum cov tam sim no ua rau lub wafer los ntawm cov hlau, cov electrons yuav raug thawb mus rau thaj tsam P, qhov twg cov electrons thiab qhov recombine, thiab ces emit zog nyob rau hauv daim ntawv ntawm photons, uas yog lub hauv paus ntsiab lus ntawm LED teeb emission.Lub wavelength ntawm lub teeb, uas kuj yog xim ntawm lub teeb, yog txiav txim los ntawm cov khoom uas tsim PN hlws ris.
Qhov tsis zoo: LED teeb yog kim dua li lwm cov teeb pom kev zoo.
Hauv cov ntsiab lus, LED teeb muaj ntau qhov zoo dua lwm lub teeb, thiab LED teeb yuav dhau los ua lub teeb pom kev zoo yav tom ntej.