Lalacewar walƙiya

Tun lokacin da hasken ya shiga zamanin fitilun fitilu, fitilun da ke tare da su suna mamaye yanayin hasken mu.Dangane da ka'idar fitilun fitilu, matsalar flicker ba a warware shi da kyau ba.A yau, mun shiga zamanin hasken wuta na LED, amma har yanzu akwai matsalar flicker haske.

Menene flicker

Flicker shine canjin ƙarfin haske ko haske a cikin wani ɗan lokaci.Fitilar walƙiya yana faruwa a aikace-aikacen hasken wuta da yawa, gami da jinkirin harbi a kan talabijin, hasken hanya, fagage daban-daban na hasken gabaɗaya da wuraren aiki ta amfani da injin juyawa cikin sauri.Flicker zai shafi lafiyar ɗan adam, kuma matakin tasiri ya dogara da yawan flicker da hankali na sirri zuwa flicker.Babban mitar flicker ba zai yi tasiri sosai a jikin ɗan adam ba, amma ƙananan flicker da ke ƙasa da 120 Hz yana da sauƙin shafar lafiyar ɗan adam.

Ayyukan nauyi na hankalin idon ɗan adam zuwa flicker

Lalacewar walƙiya

Fillicker tushen haske yana da alaƙa da ƙaura, ciwon kai, Autism, gajiyawar ido, duhun gani da sauran cututtukan jijiya.Nazarin ya nuna cewa ƙananan mita, kewayon 3-70Hz scintillation tushen haske na iya haifar da farfaɗo mai ɗaukar hoto ga wasu mutane masu hankali;An gano mita 100Hz flicker don haifar da ciwon kai da migraine;Madogararsa mai kyalli 120Hz na iya shafar yanayin mutane, kamar gajiya da damuwa.Haushi na gani wanda tasirin flicker ya haifar da motsin inji yana da haɗari sosai a wuraren masana'antu.Don haka, daidaitaccen aunawa da kimanta halayen kyalkyali na samfuran hasken wuta yana da alaƙa kai tsaye ga lafiyar mutane, wanda matsala ce ta gaggawa don warwarewa.

Dalilan flicker

Dalilan flicker na fitilun LED sun haɗa da ba kawai abubuwan samar da wutar lantarki ba, har ma da abubuwan da ke haifar da aikin fasaha na tushen haske da ƙirar haske mara ma'ana.Ripple halin yanzu yana ɗaya daga cikin mahimman abubuwan da ke haifar da flicker a cikin samar da wutar lantarki da yawa fitilu.Ripple current shine bangaren AC wanda har yanzu yana nan bayan gyarawa da tacewa.Ripple halin yanzu an sanya shi akan DC kuma yana da mitoci daban-daban da masu lanƙwasa.Wannan bangaren AC yana sa ikon na'urar LED ta canza, wanda hakan zai canza haske.Yawai da mitar AC ɗin da aka ɗora su ne ƙayyadaddun dalilai na flicker.

IEEE Std 1789-2015

Zane don ma'anar fihirisar flicker da kashi flicker

Yadda ake kawar da flicker

Bugu da ƙari, aikin kawar da duhu da haskaka yanayi, dole ne hasken wuta yayi la'akari da aikin kiwon lafiya na samfurori.Rashin cutarwa ga mutane wani bangare ne na ayyukan fitilun da ba dole ba ne a yi watsi da su.

Tasirin gyaran wutar lantarki (50Hz a Turai misali), mitar ripple halin yanzu a cikin babban bangare na LED drive ya ninka na samar da wutar lantarki, wanda shine kusan 100Hz.Bugu da ƙari, idan aka kwatanta da tushen hasken gargajiya, LEDs na iya canza yanayin aiki nan da nan zuwa haske.Don cimma tasirin fitowar haske ba tare da flicker ba kamar yadda zai yiwu, babban direban LED mai inganci da dacewa tsakanin direba, dimmer da module LED ba makawa ne.Hoto mai zuwa hanya ce ta gama gari don kimanta na'urar sarrafawa ta hanyar "fitarwa na yanzu ripple" ko "superimposed AC".Yawanci, ƙimar da aka nuna shine 100Hz.Ƙananan ƙimar, ƙananan haɗarin flicker.

IEEE Std 1789-2015

IEEE Hotunan da aka Ba da Shawarar don Gyara Yanzu a cikin LEDs masu Haskakawa don Rage Hadarin Lafiya ga Masu kallo.

Fitilolin LED da fitilu na Wellway, ko fitilu masu yuwuwar rigar, fitilun birki, fitilun da fitilu masu hana ƙura, gami da samfuran asali da ƙirar gano gaggawa, duk suna fahimtar aikin ba tare da flicker ba.Ingantacciyar wutar lantarki da fitilar ke amfani da ita na iya rage yawan fitar da fitarwa kuma ya gane daidai daidai da abubuwan fitilun.

(Wasu hotuna suna fitowa daga Intanet. Idan akwai cin zarafi, da fatan za a tuntuɓe mu kuma a goge su nan da nan)