Koj tau rov qab los ntawm kev thaij duab thiab yeeb yaj kiab thaum hmo ntuj. Koj pom tias tag nrho cov LED teeb ntawm lub teeb ncej, tsheb, thiab lwm qhov chaw yog flickering. Rau koj qhov muag liab qab, cov teeb pom kev ruaj khov. Qhov tseeb, lub teeb flicker thaum koj siv lub mirrorless, DSLR, lossis lub koob yees duab xov tooj los sau lawv.
cov Cov nyhuv stroboscopic ua rau LED teeb flicker, tab sis tib neeg lub qhov muag tsis pom nws. Nws tshwm sim sai (ze li 60 zaug ib ob lossis ntau dua). Cov xov tooj thiab lub koob yees duab tsis muaj iav tuaj yeem khaws cov kev txawv txav no.
Cov nyhuv no yuav tshwm sim ntau dua thaum lub koob yees duab tus ncej tus nqi sib txawv ntawm tus ncej tus nqi ntawm LED. Qhov no yog qhov pom tseeb tshaj plaws thaum muaj ntau cov thav ntawv ib ob lossis thaum tua cov yeeb yaj kiab hauv cov lus tsa suab qeeb.
Cov nyhuv Stroboscopic ua haujlwm li cas?
Tej zaum koj yuav tau nyeem txog "kev tsis pom kev” nyob rau hauv koj cov phau ntawv physics qub. Nws yog ib qho zoo uas ua rau nws nyuaj rau tsis nco qab qhov peb pom. Txawm hais tias ib yam khoom tsis nyob hauv peb txoj kev pom lawm, peb tseem tuaj yeem pom nws. Vim li no, peb pom lub neej raws li kev khiav tsis tu ncua es tsis txhob muaj cov duab sib txawv.
LEDs qhib thiab kaw nrawm, thiab peb tsis tuaj yeem pom lawv ntawm qhov muag liab qab. Yog li, txawm tias tom qab koj kaw lub teeb, nws zoo li lawv tseem nyob. Cov yeeb yaj kiab yog tsim los ntawm cov duab, zoo li cov duab tseem. Cov scenes no tau kaw nrog ntau tus ntas ib ob (FPS).
Thaum cov nyhuv no tau ua ke nrog lwm yam kev dag ntxias, peb lub hlwb xav tias txhua yam ntawm qhov screen yog txav mus rau hauv ib qho kev sib tw.
Lub vijtsam flickering tshwm sim thaum tus ncej tus nqi (FPS) siab dua li cov sij hawm LEDs tau hloov thiab tawm ib ob. Qhov no muab lub tswv yim tias ib yam dab tsi tsis ncaj ncees lawm nrog cov zaub.
Vim li cas LEDs qhib thiab tua?
Thaum LEDs flicker, lawv hloov ntawm kev ua thiab tawm. Lawv flickering muaj txhua yam ua rau hluav taws xob lawv tau muab.
Feem ntau, LED flickers nrawm dhau rau tus neeg pom. Koj tuaj yeem paub tseeb tias txhua qhov flickering koj pom ntawm lub koob yees duab tsuas yog lub teeb ua haujlwm zoo. Koj tsuas yog yuav tsum txhawj xeeb yog tias koj pom LED flickering nrog koj qhov muag liab qab.
Fais fab lub LEDs ntawm DC Fais Fab Qhov Chaw
Thaum peb siv lub zog LED nrog rau qhov chaw ncaj qha tam sim no, cov hluav taws xob hauv lub diode yeej ib txwm nyob hauv lub xeev them. Yog li ntawd, kom txog rau thaum lub Circuit Court puas lawm, lawv yuav muab lub teeb lub zog thiab muaj ib tug active daim ntawv. Cov nyhuv flickering yuav ploj mus thaum a DC fais fab qhov chaw powers lub LED, thiab nws yog ntes tau rau zaj duab xis.
Fais fab lub LEDs ntawm AC Power Source
Feem ntau, qhov hloov pauv tam sim no yuav los ntawm qhov chaw zoo li lub qhov (socket) phab ntsa. Los ntawm kev txhais, qhov hloov pauv tam sim no tig rau ob zaug thiab tom qab ntawd tawm peb zaug hauv ib lub voj voog.
Yog li, cov electrons uas raug them rov qab mus rau lawv lub plhaub peb zaug los ntawm kev muab tag nrho lawv lub zog ua lub teeb. Lawv tsuas yog raug them rov qab tom qab txhua ntawm peb qhov rov qab los. Vim li no, yog tias lub teeb ci LED txuas nrog ib qho AC zog qhov chaw, nws yuav zoo li nws yog flickering hauv video.
Tab sis koj tsis tuaj yeem txuas LEDs mus rau AC tam sim no vim tias qhov hloov pauv tas li ntawm rau thiab tawm ua rau lub neej ntawm LEDs mus rau qhov zoo.
Yog li, lawv txuas nrog "tus tsav tsheb," uas yog cov tswj hwm uas hloov tam sim no ntawm AC mus rau DC ua ntej xa mus rau lub teeb. Yog li, koj yuav tsis pom flickering ntawm LED uas tus tsav tsheb muaj zog
Mem Tes Dav Dav Tes Taw
LED teeb uas flicker ntawm lub koob yees duab tsis yog ib txwm vim tsis zoo AC lossis DC fais fab mov. Qhov no yog qhov tseeb tshwj xeeb tam sim no uas kis tau tus mob thev naus laus zis tau txhim kho.
LED teeb uas qhib los ntawm cov tsav tsheb tuaj yeem flicker. Cov khoom siv hluav taws xob tuaj yeem muab faib ua cov pulses tsis sib xws ntawm tam sim no tsis yog cov kwj mus tas li. Qhov no ua rau muaj qhov sib txawv loj hauv kev siv hluav taws xob. Qhov no ua rau lub teeb flicker, ib yam li lawv xav nrog AC lub zog. Qhov no yog qhov txhais tau hais tias "mem tes dav modulation.” Pulse width modulation yog siv los ua teeb pom kev zoo thiab qhib lub teeb thaum nruab hnub hauv tsheb.
Ua Incandescent Qhov muag teev Flicker hauv cov yeeb yaj kiab?
Cov qhov muag tsis pom kev flicker ntawm tus nqi tsis tu ncua, ib yam li LED teeb. Tab sis nws yog ib qho nyuaj heev kom ntes lub flicker ntawm lub teeb incandescent ntawm zaj duab xis. Qhov no yog vim li cas ob hom qij ua haujlwm.
Incandescent teeb kuj tseem siv hluav taws xob AC thiab qhib thiab tawm ntawm 100 thiab 120 zaug ib ob. Txawm li cas los xij, lawv cov filaments ua haujlwm txawv. Raws li cov filament tau kub thiab kub ua kom lub teeb thiab cua sov. Lub teeb ci ntsa iab ntev ntev tom qab qhov tam sim no raug tua.
Nws yog lub cev tsis tuaj yeem ua rau cov filament txias mus rau xoom thiab tom qab ntawd kub txog 120 zaug hauv ib thib ob. Yog li ntawd, nws tsuas zoo nkaus li nyob rau vim hais tias lub ci ntsa iab kub filament tseem muab tawm cua sov. Yog li ntawd, cov teeb pom kev tsis tu ncua tsis flicker thaum lawv tab tom ua yeeb yaj kiab.
Yuav ua li cas kom tsis txhob LED teeb ntawm Flickering ntawm lub koob yees duab?
Cov neeg feem coob pom tias nws ntxhov siab thaum cov teeb no txuas ntxiv mus thiab tawm. Tab sis muaj qee yam koj tuaj yeem ua kom qhov teeb meem tsawg dua. Qee cov lus qhia muaj raws li hauv qab no.
· Kho pes tsawg tus ncej yog qhia txhua ob
· Txav deb ntawm lub teeb yog tias koj ua tau
· Kho qhov ceev ceev raws li xav tau
· Kho lub teeb ci
Kho ntau npaum li cas yog qhia txhua ob
Vim tias qhov nthuav dav ntxiv tau ntes los ntawm tus ncej siab dua, qhov flashing ntawm LED teeb pom kev tshaj tawm ntau dua li qhov nws muaj nyob hauv video. Qhov ntau thav duab ib ob video xav tau, qhov zoo dua cov teebmeem no yuav raug ntes. Tus ncej tus nqi ntawm lub koob yees duab tuaj yeem ua kom qeeb kom qhov no tshwm sim tsawg dua.
Txav mus deb ntawm lub teeb ci yog tias koj ua tau.
Txoj kev ceev tshaj plaws thiab yooj yim tshaj plaws los nres qeeb-suab thiab cov yeeb yaj kiab kaw los ntawm flickering yog txav deb ntawm lub teeb ci. Thaum koj txav deb ntawm lub teeb ci, koj tuaj yeem cia siab tias lub teeb yuav tsis ci thiab tsis muaj peev xwm cuam tshuam.
Tab sis muaj qee qhov tsis zoo txog qhov no. Thaum koj txav deb ntawm koj qhov chaw, qhov chaw yuav tsaus dua. Yog li koj yuav tsum tau ua si nrog koj lub koob yees duab qhov raug thiab qhov chaw aperture.
Yog tsis muaj qhov sib npaug ntawm ob, koj cov duab yuav zoo li tsaus nti lossis ci dhau.
Kho lub shutter ceev raws li xav tau
Lub shutter ceev kuj tseem ceeb heev kom tau txais cov ntsiab lus hauv tus ncej. Txhawm rau hloov lub shutter ceev, koj yuav tsum xav txog ntau npaum li cas lub hwj chim qhov chaw ua haujlwm.
Piv txwv li, thaum ua hauj lwm nrog 60 hertz (Hz) lub hwj chim qhov chaw, nws yog qhov zoo tshaj plaws tua ntawm 30 ntas ib ob nrog shutter speeds ntau ntawm 60 (1/60, 1/120). Vim li no, flickering yuav tsum tshwm sim tsawg zaus.
Kho lub teeb ci ci
Yog tias koj ua tau, koj tuaj yeem sim hloov lub teeb ci li cas. Lub brighter nws yog, qhov ntau nws yuav flicker. Tab sis tib yam tshwm sim yog tias koj mus deb dhau ntawm qhov chaw. Koj lub cev duab ntxoov ntxoo loj dua thaum koj txav deb ntawm qhov teeb pom kev zoo.
Yog li, yog tias koj lub teeb pom kev tsis zoo, koj tuaj yeem tsim kho nws los ntawm kev hloov koj lub koob yees duab ua haujlwm li cas.
Ntsiab lus
Tam sim no koj tuaj yeem tua cov yeeb yaj kiab hauv qus nrog kev ntseeg siab. Tam sim no koj nkag siab tias dab tsi ua rau flickering thiab yuav ua li cas tshem tawm nws. Tsis txhob tso tseg yog tias qhov flickering tshwm sim tom qab koj thawj zaug sim. Koj yuav pom qhov ua haujlwm zoo tshaj plaws nrog lub sijhawm thiab cov lus qhia.
Koj yuav tsis ntsib teeb meem hauv qhov no. Tab sis koj yuav tsum paub xaiv qhov ntev focal ntev, shutter ceev, thiab teeb pom kev zoo.
Peb yog lub Hoobkas tshwj xeeb hauv kev tsim cov khoom lag luam zoo LED strips thiab LED neon teeb.
Thov hu rau peb Yog tias koj xav tau yuav cov teeb ci LED.
