Lub luminous nyhuv ntawm hnub ci txoj kev teeb

Luminous efficiency (lm/w): Lub luminous flux tawm los ntawm lub teeb qhov chaw faib los ntawm lub hwj chim noj los ntawm lub teeb qhov chaw. Nws yog qhov taw qhia tseem ceeb los ntsuas lub zog txuag ntawm lub teeb ci.

Tam sim no lub hnub ci txoj kev teeb yog feem ntau siv LED teeb qhov chaw. LED, tseem hu ua diode, yog ib qho khoom siv semiconductor uas tuaj yeem hloov hluav taws xob hluav taws xob rau hauv lub teeb pom kev. Yog li dab tsi yog qhov zoo ntawm LED teeb?

Nws yog feem ntau manifested nyob rau hauv plaub yam nram qab no:

 

1, high efficiency thiab txuag hluav taws xob

 

Tsawg-voltage tsav, ultra-tsawg zog noj (ib lub raj 0.05W). luminous zog hloov dua siab tshiab yog ze rau 98%, LED teeb yog ntau tshaj 60% -80% zog-txuag tshaj li ib txwm siv hluav taws xob txuag teeb pom kev zoo, thiab installation yog hloov tau, yooj yim, ruaj thiab txhim khu kev qha.

2, ntsuab ib puag ncig tiv thaiv

 

Lub teeb tsis muaj ultraviolet tsis muaj infrared, tsis muaj hluav taws xob, cov nyhuv lub teeb yog mos, tsis muaj stroboscopic, zaus qhib, belongs rau lub teeb ntsuab tiag tiag, LED teeb tsis kub. Nws tsis muaj cov khoom tsis zoo xws li mercury thiab xenon, uas yog qhov tsim nyog rau kev rov ua dua tshiab thiab siv lwm yam.

 

3, lub neej ntev heev

 

Muaj zog poob siab, muaj zog plua plav tsis kam, tsis muaj zog noj, me me voltage thiab tam sim no yuav tsum tau, tsis tshua muaj cua sov, tsawg luminous tshav kub, tsis muaj kev nyab xeeb txaus ntshai, muaj kev ruaj ntseg zoo, LED teeb pom kev zoo yog cov khoom siv lub teeb, epoxy resin pob, qhov luminous yog tsis yooj yim rau loosen. Tsis muaj filament yooj yim rau hlawv, thermal deposition, siab lub teeb lwj thiab lwm yam shortcomings, lub neej kev pab cuam mus txog 30, 000 mus rau 50, 000 teev, 30 npaug ntawm cov qhov muag teev, sib npaug rau teeb pom kev tsis cuam tshuam rau peb xyoos.

 

4. Scope ntawm daim ntawv thov

 

Teeb pom kev hauv tsev, lub teeb ntuj, teeb pom kev hauv chaw ua haujlwm, teeb pom kev hauv tsev, khw malls, tsev loj, khw muag khoom thiab khw, khw noj mov thiab tsev so, tuav, cafes, Western khw noj mov, chaw lom zem, tsev neeg hmo ntuj teeb, festive cua nrog teeb. Kev siv lub hnub ci teeb pom kev zoo, teeb pom kev hauv nroog thiab kev ua kom zoo nkauj tau dav siv.

 

Luminous flux (lm): Tag nrho cov teeb pom kev zoo uas tawm los ntawm lub teeb ci ib ob. Piv txwv li, lub teeb 100 watt (w) tuaj yeem tsim tau 1500lm, thiab 40 watt (w) fluorescent teeb tuaj yeem tsim 3500lm ntawm luminous flux. ◇ Luminous siv (cd): lub luminous flux emitted los ntawm lub teeb qhov chaw nyob rau hauv lub chav tsev lub kaum sab xis, uas yog, qhov ceev ntawm lub luminous flux emitted los ntawm lub teeb qhov chaw nyob rau hauv qhov chaw xaiv qhov chaw. Chav tsev ntawm lub teeb siv yog Cantera (cd), tseem hu ua tswm ciab. Piv txwv li, lub teeb emitting 1 lumen nyob rau hauv 1 unit ntawm lub tso suab lub kaum sab xis yog hu ua 1 Cantera (1cd). Luminance: LED yog lub teeb-emitting ntaus ntawv, brightness hais txog chav tsev ntawm illumination, chav tsev yog: tswm ciab / square meter, LED txheem tsav tam sim no yog 20mA.

Xim kub (k): qhia nyob rau hauv qhov kub thiab txias (k= degree +273.15)K, uas yog, thaum lub cev dub yog rhuab, kub nce mus rau ib tug tej degree, xim maj mam hloov. los ntawm tsaus liab - lub teeb liab - txiv kab ntxwv liab - daj - daj dawb - dawb - xiav dawb - xiav. Thaum lub teeb pom kev zoo tib yam xim raws li lub cev dub, peb hu rau qhov kub thiab txias ntawm lub cev dub thaum lub sijhawm xim kub ntawm lub teeb ci. Piv txwv li, thaum lub blackbody yog rhuab los qhia ib tug sib sib zog nqus liab, qhov kub yog hais txog 550 degree, uas yog, xim kub yog 823K.

 

Xim rendering (ra): Lub degree uas lub teeb qhov chaw renders xim ntawm cov khoom nws tus kheej yog hu ua xim rendering. Qhov ntawd yog, qhov tseeb npaum li cas yog xim. Lub CIE International Commission ntawm Illumination muab cov xim rendering Performance index ntawm lub hnub ntawm 100. Cov xim rendering Performance index ntawm ntau yam teeb pom kev zoo sib txawv. Piv txwv li: incandescent teeb ra Ntau dua los yog sib npaug rau 90, fluorescent teeb ra =60∽90.

Saib lub kaum sab xis: Lub kaum sab xis muab faib ua X axis (sab laug thiab sab xis) Y axis (nce thiab nqis) thaum lub hauv paus axis yog 1, lub kaum sab xis ntawm sab laug thiab sab xis lossis sab sauv thiab sab qis yog 1/2 ntawm lub kaum sab xis saib ; Piv txwv li 70 degree Viewing Angle txhais tau tias 35 degree nce thiab nqis los yog sab laug thiab sab xis ntawm qhov chaw nruab nrab.

 

Wavelength: Lub wavelength ntawm lub teeb emitted los ntawm lub diode luminescent raj, lub dav liab wavelength yog 620-660nm, ntshiab ntsuab 520-530nm, xiav 470-480nm, daj 580-890nm, daj ntsuab 550-570nm, thov xa mus rau daim duab chroma, qhov sib txawv wavelengths ntawm lub teeb emitted xim txawv; Lub teeb sib xyaw ntawm ob xim kuj txawv.

 

Quaternary system: hais txog lub teeb emitting diode ua los ntawm plaub yam tshuaj ntawm ALInGaP, uas muaj peev xwm emit lub teeb ntawm daj thiab ntsuab / daj / txiv kab ntxwv / liab (wavelength 550-630}nm), nrog high brightness thiab tsawg attenuation yam ntxwv, uas yog cov khoom tseem ceeb ntawm sab nraum zoov lub teeb emitting diodes.

 

Ntshiab ntsuab / daj-ntsuab: Ib txwm ntsuab LED yog xim daj ntsuab, wavelength ntawm 550-570nm, tus nqi qis, tsis tshua muaj ci, ceev attenuation, 1994 Nyiv sub-manufacturing tuam txhab tsim ib tug ntshiab ntsuab (wavelength 520-530) nm) tus nqi siab, siab brightness, qeeb attenuation, dav siv nyob rau hauv sab nraum zoov zaub, Ob yam khoom yog txawv heev thiab yuav tsum tau distinguished kom meej meej nyob rau hauv tsim.

 

Monochrome / ob chav thawj / puv xim npo: peb lub ntsiab xim yog liab / ntsuab / xiav; Yog tias lub raj pixel muaj peb lub teeb-emitting diodes, nws yog hu ua cov xim puv xim; Yog tias tsuas yog liab + ntsuab yog hu ua ob lub xim thawj xim, yog tias tsuas yog ib qho xim xws li liab lossis daj yog hu ua monochrome zaub, cov duab monochrome feem ntau yog ua si cov ntsiab lus ntshiab, ob lub ntsiab xim feem ntau yog cov ntawv + qauv + animation, tag nrho cov xim tshuaj ntsuam yog tsuas yog mus tshaj tawm video signals.

Kev pabcuam lub neej: yog hais txog lub sijhawm thaum lub teeb ci ntawm LED nce mus txog ib nrab ntawm cov nqi pib, uas dhau los ua ib nrab ntawm lub neej, thiab cov chips sib txawv siv nyob rau hauv ib puag ncig sib txawv yuav muaj kev pab cuam lub neej sib txawv.

 

Brightness attenuation nkhaus: nkhaus ntawm brightness thiab lub sij hawm ntawm ntau yam chips nyob rau hauv tej yam kev mob (kub, tam sim no); Qhov nkhaus no tuaj yeem nkag siab txog cov yam ntxwv ntawm lub nti.

Chip / ib lub teeb / pixel tube: lub diode lub teeb emitting raj yog cov khoom siv semiconductor, lub teeb emitting yog hu ua nti, thiab cov nti tau ntim rau hauv qhov me me uas tuaj yeem teeb, hu ua ib lub teeb; Ntau lub teeb me me tau sib sau ua ke rau hauv lub raj loj uas muaj cov kua nplaum thiab npog los ua lub raj pixel.
Point txoj kab uas hla: hais txog txoj kab uas hla ntawm lub pixel raj.

Point spacing: yog hais txog qhov kev ncua deb ntawm ob qhov chaw pixel tube uas nyob ib sab, tus qauv sib txawv ntawm lub teeb taw tes sib nrug=teeb taw qhia txoj kab uas hla × 1.25.

Pom kev deb: yog hais txog qhov kev ncua deb ntawm lub cev lub cev tuaj yeem pom tau meej, qhov kev ncua deb no cuam tshuam nrog qhov siab ntawm cov ntawv tso tawm, cov qauv yooj yim ceev ceev:-- qhov ze tshaj plaws pom qhov deb: 50 × lo lus qhov siab (m ) -- qhov pom deb tshaj plaws: 200 lo lus qhov siab (m)

Brightness tsis siv neeg hloov kho: LED nrog kev siv ntawm lub ambient brightness, thiab kev siv ntawm lawv tus kheej brightness kuj tau kho, feem ntau yuav txo tau txoj kev tam sim no kom ua tiav lub hom phiaj ntawm kev txo brightness.

Point ceev: pes tsawg pixel tubes muaj ib square meter.

Kev khiav hauj lwm kub: Qhov kub qis tshaj plaws thiab siab tshaj plaws uas cov zaub tuaj yeem siv tau ib txwm.