xov xwm

LED teeb pom kev zoo tam sim no yog lub teeb pom kev zoo tshaj plaws. Yuav luag txhua tus paub txog ntau yam txiaj ntsig uas tau muab los ntawm LED fixtures, tshwj xeeb tshaj yog qhov tseeb tias lawv muaj zog ntau dua thiab siv tau ntev dua li cov teeb pom kev zoo ib txwm muaj. Txawm li cas los xij, feem ntau cov neeg tsis muaj kev paub ntau txog cov thev naus laus zis hauv qab LED teeb pom kev zoo. Hauv cov ntawv tshaj tawm no, peb saib seb yuav ua li cas hauv qab LED teeb pom kev lag luam kom nkag siab tias LED teeb ua haujlwm li cas thiab qhov twg tag nrho cov txiaj ntsig lawv tau los txog.

Tshooj 1: LEDs yog dab tsi thiab lawv ua haujlwm li cas?

Thawj kauj ruam kom nkag siab txog kev siv tshuab hluav taws xob LED yog nkag siab tias LEDs yog dab tsi. LED stands rau lub teeb emitting diodes. Cov diodes no yog semiconductor nyob rau hauv qhov, uas txhais tau hais tias lawv muaj peev xwm ua hluav taws xob tam sim no. Thaum hluav taws xob tam sim no siv thoob plaws lub teeb emitting diode, qhov tshwm sim yog tso tawm lub zog nyob rau hauv daim ntawv ntawm photons (lub teeb lub zog).

Vim lub fact tias LEDs fixtures siv ib tug semiconductor diode los tsim lub teeb, lawv raug xa mus rau raws li lub xeev cov khoom siv teeb. Lwm cov teeb hauv lub xeev muaj xws li cov organic teeb emitting diodes thiab polymer lub teeb-emitting diodes, uas kuj siv ib tug semiconductor diode.

Tshooj 2: LED teeb xim thiab xim kub

Feem ntau cov khoom siv LED tsim teeb uas yog xim dawb. Lub teeb dawb tau muab faib ua ntau pawg nyob ntawm qhov sov sov lossis qhov txias ntawm txhua qhov khoom siv (li no xim kub). Cov xim kub ntawm cov xim no suav nrog:

Sov Dawb - 2,700 rau 3,000 Kelvins
Dawb dawb - 3,000 rau 4,000 Kelvins
Dawb Dawb - 4,000 rau 5,000 Kelvins
Hnub Dawb - 5,000 txog 6,000 Kelvins
Txias Dawb - 7,000 rau 7,500 Kelvins
Nyob rau hauv sov dawb, cov xim uas tsim los ntawm LEDs muaj xim daj, zoo ib yam li cov teeb incandescent. Raws li cov xim kub nce, lub teeb yuav ua kom zoo nkauj, kom txog thaum nws mus txog hnub dawb xim, uas zoo ib yam li lub teeb ntuj (hnub ci los ntawm lub hnub). Raws li cov xim kub tseem nce ntxiv, lub teeb beam pib muaj xim xiav.

Ib yam uas koj yuav tsum tau, txawm li cas los xij, nco ntsoov txog lub teeb emitting diodes yog tias lawv tsis tsim lub teeb dawb. Cov diodes muaj nyob rau hauv peb lub ntsiab xim: liab, ntsuab, thiab xiav. Cov xim dawb uas pom nyob rau hauv feem ntau cov khoom siv LED los ntawm kev sib xyaw peb cov xim thawj. Yeej, xim sib xyaw hauv LEDs suav nrog kev sib txuas ntawm lub teeb sib txawv ntawm ob lossis ntau dua diodes. Yog li ntawd, los ntawm kev sib xyaw xim, nws muaj peev xwm ua tiav ib qho ntawm xya xim uas pom nyob rau hauv lub teeb pom kev zoo (cov xim zaj sawv), uas tsim cov xim dawb thaum lawv tag nrho ua ke.

Tshooj 3: LED thiab lub zog efficiency

Ib qho tseem ceeb ntawm LED teeb pom kev lag luam yog lawv lub zog ua haujlwm. Raws li twb tau hais lawm, yuav luag txhua tus paub tias LEDs muaj zog npaum li cas. Txawm li cas los xij, ntau tus neeg zoo tsis paub tias lub zog ua haujlwm zoo li cas los txog.

Qhov uas ua rau LED muaj zog ntau dua li lwm yam kev siv teeb pom kev zoo yog qhov tseeb tias LEDs hloov yuav luag tag nrho cov hluav taws xob inputted (95%) rau hauv lub teeb lub zog. Nyob rau sab saum toj ntawm qhov ntawd, LEDs tsis tso tawm hluav taws xob infrared (tsis pom lub teeb), uas yog tswj hwm los ntawm kev sib xyaw xim wavelengths ntawm lub diodes hauv txhua qhov kev sib tw kom ua tiav tsuas yog xim dawb wavelength.

Ntawm qhov tod tes, lub teeb pom kev zoo hloov pauv tsuas yog ib feem me me (kwv yees li 5%) ntawm lub zog siv hluav taws xob rau hauv lub teeb, nrog rau qhov seem raug nkim los ntawm tshav kub (li 14%) thiab hluav taws xob infrared (li 85%). Yog li ntawd, nrog cov cuab yeej teeb pom kev zoo ib txwm muaj, xav tau ntau lub zog txhawm rau tsim kom muaj qhov ci txaus, nrog LEDs xav tau lub zog tsawg dua los tsim qhov ci zoo sib xws lossis ntau dua.

Tshooj 4: Lub teeb ci ntsa iab ntawm LED fixtures

Yog tias koj tau yuav cov teeb pom kev zoo lossis cov teeb fluorescent yav dhau los, koj paub txog wattage. Tau ntev, lub wattage yog qhov kev lees paub ntawm kev ntsuas lub teeb uas tsim los ntawm kev sib tw. Txawm li cas los xij, txij li los ntawm LEDs fixture, qhov no tau hloov pauv. Lub teeb uas tsim los ntawm LEDs yog ntsuas nyob rau hauv luminous flux, uas yog txhais raws li tus nqi ntawm lub zog emission los ntawm lub teeb qhov chaw nyob rau hauv tag nrho cov lus qhia. Qhov ntsuas ntawm qhov luminous flux yog lumens.

Qhov laj thawj ntawm kev hloov qhov ntsuas ntawm qhov ci los ntawm wattage mus rau qhov ci yog vim qhov tseeb tias LEDs yog cov khoom siv hluav taws xob tsawg. Yog li ntawd, nws ua rau kev txiav txim siab ntau dua los txiav txim siab qhov ci siv lub luminous tso zis es tsis txhob siv lub zog tso zis. Nyob rau sab saum toj ntawm qhov ntawd, cov khoom siv sib txawv LED muaj qhov sib txawv luminous efficiency (lub peev xwm los hloov hluav taws xob tam sim no rau hauv lub teeb tso zis). Yog li ntawd, cov khoom siv uas siv tib lub zog yuav muaj qhov sib txawv luminous ntau.

Tshooj 5: LEDs thiab cua sov

Ib qho kev xav tsis zoo txog LED fixtures yog tias lawv tsis tsim cua sov - vim qhov tseeb tias lawv txias rau qhov kov. Txawm li cas los xij, qhov no tsis muaj tseeb. Raws li twb tau hais saum toj no, ib feem me me ntawm lub zog noj rau hauv lub teeb emitting diodes hloov mus rau hauv lub zog cua sov.

Yog vim li cas vim li cas LED fixtures txias rau qhov kov yog tias qhov me me ntawm lub zog hloov mus rau lub zog hluav taws xob tsis ntau dhau. Nyob rau hauv tas li ntawd, LED fixtures tuaj nrog cov dab dej kub, uas dissipate no tshav kub, uas tiv thaiv lub overheating ntawm lub teeb emitting diodes thiab hluav taws xob circuits ntawm lub LED fixtures.

Tshooj 6: Lub neej ntawm LED fixtures

Ntxiv nrog rau kev ua kom muaj zog, LEDs lub teeb fixtures kuj muaj npe nrov rau lawv lub zog efficiency. Qee cov khoom siv LED tuaj yeem nyob nruab nrab ntawm 50,000 thiab 70,000 teev, uas yog kwv yees li 5 zaug (lossis ntau dua) ntev dua piv rau qee cov khoom siv hluav taws xob thiab fluorescent. Yog li, dab tsi ua rau LED teeb kav ntev dua li lwm hom teeb?

Zoo, ib qho ntawm cov laj thawj tau ua nrog qhov tseeb tias LED yog lub teeb ci hauv lub xeev, thaum lub teeb ci thiab fluorescent siv hluav taws xob filaments, plasma, lossis roj los tawm lub teeb. Cov hluav taws xob filaments hlawv tawm yooj yim tom qab lub sij hawm luv luv vim yog cua sov degradation, thaum lub iav casings uas lub tsev cov plasma los yog roj yog heev raug rau kev puas tsuaj vim muaj kev cuam tshuam, kev co, los yog ntog. Cov teeb pom kev zoo no tsis ruaj khov, thiab txawm tias lawv muaj sia nyob ntev txaus, lawv lub neej luv luv piv rau LEDs.

Ib yam uas yuav tsum nco ntsoov txog LEDs thiab lub neej yog tias lawv tsis hlawv zoo li fluorescent lossis incandescent qij (tshwj tsis yog lub diodes overheat). Hloov chaw, lub luminous flux ntawm LED fixture degrades maj mam dhau lub sij hawm, kom txog rau thaum nws mus txog 70% ntawm thawj luminous tso zis.

Nyob rau ntawm no (uas yog hu ua L70), qhov luminous degradation yuav pom tau rau tib neeg lub qhov muag, thiab tus nqi degradation nce, ua rau kev siv txuas ntxiv ntawm LED fixtures impractical. Cov kev sib tw yog li suav hais tias tau mus txog qhov kawg ntawm lawv lub neej ntawm lub sijhawm no.