Waa maxay waxyaabaha saameeya waxtarka iftiinka LED-free AC

1. Tignoolajiyada kala daadinta kulaylka Diode iftiinka-firfircoon ee ka kooban PN, marka socodka hore uu ka soo qulqulo PN, guntinka PN wuxuu leeyahay luminta kuleylka. Kalooriyadani waxa ay hawada ku shubaan xabag isku xidha, walxaha waraabka, kulaylka dego, iwm. Nidaamkan, qayb kasta oo ka mid ah maaddadu waxay leedahay caabbinta kulaylka si ay uga hortagto socodka kulaylka, taas oo ah, caabbinta kulaylka, caabbinta kuleylka LED-free AC waa qiimaha go'an ee lagu go'aamiyo cabbirka qalabka, qaabka iyo walxaha. Iska caabbinta kulaylka ee diode iftiinku waa RTH (/ w), awooda kulaylka waa PD (W). Waqtigaan, heerkulka guntinta PN ee uu keeno kulaylka luminta hadda wuxuu kor u kacaa: t () = Rth PD. Heerkulka guntinta PN waa: TJ = TARTH PD, halkaasoo TA uu yahay heerkulka deegaanka. Maaddaama heerkulka kor u kaca ee guntinku uu yarayn doono fursadda isku-darka PN-ga, iftiinka diodes-yada dhalaalaya ayaa yaraan doona. Isla mar ahaantaana, ay sabab u tahay kororka heerkulka korodhay ee ay sababto luminta kulaylka, dhalaalka iftiinka-emitting diode mar dambe ma sii wadi doono inuu kordho saamiga hadda, taas oo ah, ifafaale saturation kulaylka. Intaa waxaa dheer, kor u kaca heerkulka guntinta, mowjadda ugu sarreysa ee dhalaalaysa waxay sidoo kale u leexan doontaa jihada hirarka dheer, oo ku saabsan 0.2-0.3nm /, taas oo loogu talagalay LED-ka AC-free LED-ka cad ee AC-free LED LED. iyadoo lagu dahaadhay budada fluorescent ee YAG iyadoo la adeegsanayo chip Blu-ray. Mawjadaha dhaadheer ee Blu-ray waxay sababi doontaa luminta ciyaarta budada fluorescent si ay u kiciso hirarka dhererka, taas oo hoos u dhigaysa guud ahaan waxtarka iftiinka LED-ka iftiinka cad, iyo isbeddelka heerkulka midabka iftiinka cad. Diode korontadu, hadda waduhu wuxuu guud ahaan ka badan yahay boqollaal millimitir. Cufnaanta hadda ee guntinta PN waa mid aad u sarreeya, sidaas darteed kor u kaca heerkulka PN waa mid aad u muuqda. Baakadaha iyo codsiyada, sida loo yareeyo caabbinta kulaylka ee alaabta, si kulaylka uu keeno guntinta PN loo sii daayo sida ugu dhakhsaha badan, taas oo aan hagaajin karin hadda saturation ee alaabta, hagaajinta waxtarka iftiinka alaabta, laakiin sidoo kale hagaajinaysaa isku halaynta iyo nolosha alaabta. Si loo yareeyo caabbinta kulaylka ee alaabta, doorashada alaabta baakadaha ayaa si gaar ah muhiim u ah, oo ay ku jiraan kulaylka, xabagta, iwm. Cadaadiska kulaylka ee walxo kasta waa inuu ahaadaa mid hooseeya, taas oo ah, waxqabadka kuleylku waa mid wanaagsan. Marka labaad, naqshadeynta qaab-dhismeedka waa inuu ahaadaa mid macquul ah. Dhaqdhaqaaqa kulaylka ee u dhexeeya walxo kasta si joogto ah ayaa loo siman yahay, heerkulka kulaylka ee u dhexeeya maaddooyinka ayaa fiican si looga fogaado abuurista dhalooyinka kuleylka kuleylka ee kuleylka kuleylka. Isla mar ahaantaana, waxaa lagama maarmaan ah in la hubiyo in laga bilaabo farsamada gacanta, kulaylka ayaa la sii daayaa wakhtiga sida waafaqsan kanaalka kuleylka kuleylka ee horay loo qorsheeyay. 2. Doorashada buuxinta xabagta Sida uu qabo sharciga dib-u-celinta, marka iftiinku ka dhaco warbaahinta iftiinka ilaa dhexdhexaad iftiin yar, marka xagasha dhacdadu gaadho qiimo gaar ah, taas oo ah, marka xagasha muhiimka ahi ka weyn tahay xagasha muhiimka ah. bilaabista buuxda ayaa dhici doonta. Marka la eego chip-buluug ee GAN, tusmada dib-u-celinta ee agabka GAN waa 2.3. Marka iftiinka laga toogto crystal ilaa hawada, sida uu qabo sharciga dib-u-soo-celinta, xagasha muhiimka ah 0 = dembi- (n2/n1) waa index refractive, N1 waa index refractive ee GAN, sidaas darteed xisaabinta xagasha muhiimka ah 0 ku saabsan 25.8 degrees. Xaaladdan oo kale, kaliya xagasha dhacdada 25.8 ee geesaha saddex-geesoodka ah ee booska ee geesaha saddex-geesoodka ah ee booska ayaa la soo sheegay. Waqtigan xaadirka ah, waxtarka tirada dibadda ee chip GAN waa qiyaastii 30% -40%. Sidaa darteed, sababtoo ah nuugista gudaha ee nuugista kristal chip, Saamiga nalka ee ka baxsan kareemka waa mid aad u yar. Sida laga soo xigtay warbixinnada, waxtarka tirada dibadda ee chip GAN ayaa hadda ku dhow 30% -40%. Sidoo kale, iftiinka ka soo baxa chip-ka waa in lagu gudbiyaa booska iyada oo loo marayo alaabta baakadaha, iyo saameynta walxaha ku leh waxtarka iftiinka alaabta waa in la tixgeliyaa. Sidaa darteed, si loo hagaajiyo waxtarka iftiinka AC-free baakadaha alaabta LED, qiimaha N2 waa in la kordhiyaa, taas oo ah, index refractive ee alaabta baakadaha si loo hagaajiyo xagasha muhiimka ah ee alaabta, si loo hagaajiyo iftiinka baakadaha alaabta. hufnaan. Isla mar ahaantaana, nuugista alaabta iftiinka ee alaabta baakadaha waa inay ahaataa mid yar. Si loo kordhiyo saamiga iftiinka ka baxsan iftiinka, qaabka baakadu waa mid qotodheer ama hemispherical. Sidan oo kale, marka nalka laga toogto alaabta baakadaha ilaa hawada, waxa ay ku dhowdahay in si toos ah loo toogto interface-ka, sidaas darteed wax ka tarjumid buuxda lama dhalin doono. 3. Waxaa jira laba waji oo waaweyn oo ah daaweynta milicsiga daawaynta. Mid waa daaweynta milicsiga gudaha chip-ka, kan kalena waa muraayadda alaabta baakadaha ee iftiinka. Iyada oo ka tarjumaysa gudaha iyo dibaddaba, waxay kordhin doontaa saamiga kaarka indhaha ee ka soo baxa gudaha chip-ka, hoos u dhigista nuugista gudaha ee chip-ka, hagaajinta awoodda AC-free LED dhamaystirtay waxtarka iftiinka alaabta. Xagga baakadaha, LED-yada nooca korantada ah waxay inta badan ku ururiyaan jajabka nooca-power-ka ah ee ku dul xirma biraha ama substrate leh dalool milicsan. Daloosha nooca-bracket-ka ah waxay guud ahaan isticmaasha koronto-samaynta si ay u horumariso saamaynta milicsiga. Hababka, daaweynta korantada ayaa sidoo kale la sameeyaa, laakiin labada hab ee kor ku xusan waxaa saameeya saxnaanta caaryada iyo habka. Waqtigan xaadirka ah, daloolka falcelinta gudaha ee nooca xaashida, sababtoo ah saxnaanta dhalaalid ku filan ama oksaydhka daahan birta ah, saamaynta falcelinta ayaa liidata, taas oo keentay iftiin badan oo la nuugo ka dib markii goobta milicsiga laga saaro, waana oo aan ka muuqan karin dusha iftiinka ee bartilmaameedka la filayo, taas oo horseedaysa in la gaaro yoolka la filayo, taas oo horseedaysa in la gaaro yoolka la filayo. taasi oo keenta in la gaadho yoolkii la filayey, taas oo keenta in la gaadho yoolkii la filayey. bartilmaameedka la filayo, waxay u horseedi doontaa gaaritaanka gaaritaanka si loo gaaro waxtarka iftiinka ka dib marka baakadu hooseyso. Waxaan samaynay hab daawaynta reflex oo leh dahaar walxo organic ah oo leh xuquuqo madax banaan oo hanti aqooneed lehna cilmi baadhisyo badan ka dib. Toogashada iftiinka korkeeda waxay ka tarjumaysaa iftiinka maqan. Waxtarka ka baaraandegidda badeecada ka dib habaynta waxaa lagu kordhin karaa 30% -50% marka loo eego farsamaynta. Saamaynta iftiinka ee hadda ee awoodda iftiinka cad ee 1W LED waxay gaari kartaa 40-50LM/W (natiijooyinka imtixaanka masaafada fog ee PMS-50 qalabka baaritaanka spectrum), waxayna heleen saameyn baakad wanaagsan. 4. Marka la eego awoodda cad ee AC-free LED, hagaajinta tamarta iftiinka AC waxay sidoo kale la xiriirtaa xulashada iyo habka habaynta budada fluorescent. Si loo hagaajiyo waxtarka budada fluorescent si loo kiciyo jajabka buluuga ah, marka hore, doorashada budada fluorescent waa in ay ahaato mid ku habboon, oo ay ku jiraan mowjadaha kicinta, xajmiga qaybta, iyo waxtarka waxyiga. Marka labaad, dahaarka budada fluorescent waa in si siman loo dahaadhay, dhumucda jajab kasta oo iftiin leh oo leh jajab yar ayaa si siman u qaro weyn, si aanay u keenin iftiinka maxalliga ah lama toogan karo dhumuc aan sinnayn awgeed. Naqshadeynta kulaylka wanaagsan waxay saameyn weyn ku leedahay hagaajinta waxtarka iftiinka alaabta LED-ka ee bilaashka ah, sidoo kale waa shardi u ah hubinta nolosha alaabta iyo isku halaynta. Iyo kanaalka iftiinka si fiican loo qaabeeyey, halkan si aad u tixraacdo naqshadaynta qaabdhismeedka, xulashada alaabta iyo habka habka daloolka milicsiga, buuxinta xabagta, iwm. Wixii laydhka cad ee tamarta ku salaysan ee LED, doorashada iyo habka naqshadaynta budada fluorescent sidoo kale waa mid aad muhiim u ah si loo hagaajiyo hagaajinta dhibcaha iftiinka iyo hagaajinta waxtarka iftiinka.