Raws li kev ua haujlwm, lub teeb tuaj yeem muab faib ua: pos huab teeb, nrog lub teeb tawg tawg thiab ze ze irradiation. Feem ntau lub teeb pos huab muaj lub plawv- lub teeb zoo li lub teeb, uas feem ntau saib xyuas sab laug thiab sab xis. Nyob rau hauv cov chaw uas tsis muaj teeb pom kev zoo ntawm txoj kev, tig rau ntawm lub teeb qis thiab lub teeb taws tib lub sijhawm tuaj yeem pab koj pom cov neeg taug kev ntawm txoj kev ua ntej thiab pom kev ua haujlwm ntawm cov neeg taug kev. Lub hwj chim pos huab teeb tsis yog ib qho kev xaiv zoo, vim hais tias nws lub teeb hom yog tawg heev thiab tsis muaj qhov pom tseeb ciam teb ntawm lub teeb thiab ntxoov ntxoo. Qhov projection zoo li no txiav txim siab tias nws yuav ua rau tus neeg tsav tsheb rov qab xav tias dazzling; Tsis tas li ntawd, vim qhov nce ntawm cov xim kub tshwm sim los ntawm lub zog siab, lub teeb nrog cov xim kub siab yuav tshwm sim los ntawm pos huab, tsim lub teeb ci ntsa iab nyob rau hauv pem hauv ntej ntawm koj, thiab koj yuav plam tag nrho lub peev xwm saib tej yam hauv huab. .
Spot lamp: by adjusting the appropriate spot lamp, the driver can see the road conditions in the range of 100-200m in front of the vehicle, and it is easier to distinguish the ups and downs of the road by using the linear characteristics of the spot lamp. If you find bright spots and black spots in front of you, you'd better slow down in advance to avoid bumping in the bumps. There are many kinds of spotlights with a nominal irradiation distance of 1km / 1Lux or more, but the light intensity that can read newspapers at a distance of 1km or more does not mean that you can observe the road conditions 500 meters away through the spotlight, because the light intensity is inversely proportional to the square of the distance, and the factors affecting the driver's own vision have not been added at this time. Advantages of lens headlamp: in automobile lamps, the light shape of lens lamp cap is the most standard, and there can be obvious light and dark cutting lines, which solves the problem of astigmatism. In foreign countries, xenon lamps are used with standard lenses. This kind of mirror belongs to the category of optical mirror, which we call "lens". Compared with the headlamp with traditional lamp cap, the headlamp with lens lamp cap has the advantages of uniform brightness, strong penetration and small light loss.
Raws li cov ntaub ntawv:
LED teeb: LED (lub teeb emitting diode, uas txhais tau tias lub teeb emitting diode nyob rau hauv Suav) yog ib tug semiconductor uas muaj peev xwm hloov hluav taws xob hluav taws xob mus rau hauv lub teeb pom kev. Nws hloov lub hauv paus ntsiab lus ntawm tungsten filament luminescence ntawm incandescent teeb thiab peb thawj xim hmoov luminescence ntawm lub zog- txuag teeb, thiab siv hluav taws xob luminescence. Raws li kev txheeb xyuas, cov yam ntxwv ntawm LED yog qhov pom tseeb heev, nrog lub neej ua haujlwm ntev, kev ua haujlwm siab lub teeb, tsis muaj hluav taws xob thiab siv hluav taws xob tsawg. Yuav luag tag nrho cov spectra ntawm LED yog concentrated nyob rau hauv lub pom zaus band, thiab nws luminous efficiency yuav ncav cuag 80 90 feem pua.
Xenon headlights kuj suav nrog cov teeb pom kev zoo hauv pem hauv ntej (AFS): tseem hu ua kev hloov kho pem hauv ntej teeb pom kev zoo, uas tuaj yeem hloov kho lub teeb taub hau raws li lub kauj lub kaum sab xis, lub tsheb deflection tus nqi thiab daim ntawv ceev ntawm lub tsheb, hloov mus rau lub kauj tsheb tam sim no thiab ua kom lub teeb pom kev zoo raws li kev tsav tsheb tam sim no ntawm lub tsheb, txhawm rau ua kom lub teeb pom kev zoo tshaj plaws rau txoj kev ua ntej thiab qhov pom kev zoo tshaj plaws rau tus neeg tsav tsheb, txhawm rau txhim kho kev nyab xeeb ntawm kev tsav tsheb hauv qhov tsaus ntuj. Raws li txoj cai ua haujlwm ntawm cov teeb, feem ntau ntawm lawv yog xenon teeb. Cov hauv qab no yog sawv cev los ntawm lawv txoj hauv kev ua haujlwm: xenon headlamp: tseem hu ua zais, uas yog lus Askiv luv ntawm kev siv hluav taws xob siab siab siab - lub teeb hluav taws xob roj tawm. Nws lub hauv paus ntsiab lus yog tias UV txiav los tiv thaiv UV siv lead ua quartz iav raj yog ntim nrog ntau yam tshuaj gases, feem ntau yog cov roj inert xws li xenon thiab iodide, thiab tom qab ntawd 12 volt DC voltage ntawm lub tsheb yog instantaneously pressurized rau 23000 volts. los ntawm lub supercharger (ballast). Cov xenon electrons nyob rau hauv lub quartz raj yog zoo siab los ntawm lub siab -voltage amplitude, thiab lub teeb qhov chaw yog generated ntawm ob electrodes, Qhov no yog hu ua gas paug. Dawb super hluav taws xob arc tsim los ntawm xenon tuaj yeem txhim kho xim kub ntawm lub teeb, uas zoo ib yam li lub hnub ci nyob rau nruab hnub. Qhov tam sim no xav tau rau kev ua haujlwm HID tsuas yog 3.5A, qhov ci ntsa iab yog peb npaug ntawm cov khoom siv halogen, thiab lub neej kev pab cuam yog 10 npaug ntev dua li cov khoom siv halogen. Raws li xenon headlamp yog illuminated los ntawm xenon gas paug, nws txoj kev ua hauj lwm yog tsis muaj tungsten hlau, tab sis nws emits lub teeb nrog kev pab los ntawm lub arc ntawm ob tug ncej. Lub arc feem ntau tuaj yeem ua kom lub zog tsis muaj zog xenon, uas ua rau cov ntsev hlau tawm lub teeb. Raws li lub teeb pom kev zoo nyob rau hauv pem hauv ntej ntawm lub tsheb, lub zog noj ntawm lub teeb xenon yog peb zaug siab dua li ntawm lub teeb hluav taws xob nyob rau hauv pem hauv ntej qhov chaw, kom lub zog noj ntawm lub xenon teeb yuav txo tau. Lub luminous flux ntawm 35W tawm lub taub hau yog ob zaug ntawm 55W lub teeb halogen zoo tib yam, thiab nws cov xim kub yog siab li 4200k lossis siab dua, uas zoo ib yam li lub hnub ci. Txawm li cas los xij, nws muaj ntau yam xim ntsuab thiab xiav, nrog rau kev pabcuam dav dav ntawm 1500-2500 teev, uas yog sib npaug rau txhua lub sijhawm khiav hauv qhov nruab nrab kev pabcuam ntawm lub tsheb. Nws kuj muaj qhov muaj txiaj ntsig zoo: thaum nws tawg, nws feem ntau darkens maj mam es tsis txhob maj mam teeb, uas tuaj yeem muab sijhawm rau tus neeg tsav tsheb. Lub teeb tsis yog tsuas yog lub teeb pom kev zoo ntawm lub tsheb, tab sis kuj yog lub hauv ntej ntawm lub cev lub tsheb. Txawm hais tias tus qauv tsim ntawm lub teeb tuaj yeem ua ke nrog tag nrho cov tsos ntawm lub tsheb yog tus yuam sij rau seb lub tsheb zoo li cas tuaj yeem txaus nyiam. Kev tsim teeb pom kev zoo kuj tseem ceeb heev.