Puisano e Khutšoanyane ka Ultra High Brightness LEDs le Likopo tsa Tsona

Li-LED tsa khale tsa GaP le GaAsP tsa homojunction tse khubelu, tse mosehla, le tse tala tse khanyang tse tlase lilemong tsa bo-1970 li sebelisitsoe ho mabone a bonts'ang, li-digital le lipontšo tsa mongolo. Ho tloha ka nako eo ho ea pele, LED e ile ea qala ho kena libakeng tse fapaneng tsa kopo, ho kenyelletsa le sefofane, lifofane, likoloi, lisebelisoa tsa indasteri, likhokahano, lihlahisoa tsa bareki, joalo-joalo, tse koahelang likarolo tse sa tšoaneng tsa moruo oa naha le malapa a likete. Ka 1996, thekiso ea LED lefatšeng ka bophara e ne e fihlile ho libilione tsa lidolara. Le hoja li-LED li fokotsoe ke mebala le bokhoni bo khanyang ka lilemo tse ngata, GaP le GaAsLED li 'nile tsa ratoa ke basebelisi ka lebaka la nako e telele ea bophelo, ho tšepahala ho phahameng, hona joale ho sebetsa ka tlaase, ho lumellana le lipotoloho tsa digital tsa TTL le CMOS, le melemo e meng e mengata.
Lilemong tse leshome tse fetileng, khanya e phahameng le mebala e feletseng e 'nile ea e-ba lihlooho tsa morao-rao lipatlisisong tsa lisebelisoa tsa LED le theknoloji ea lisebelisoa. Khanya e phahameng haholo (UHB) e bolela LED e nang le matla a khanyang a 100mcd kapa ho feta, e tsejoang hape e le Candela (cd) level LED. Khatelo-pele ea tsoelo-pele ea khanya e phahameng ea A1GaInP le InGaNFED e potlakile haholo, 'me joale e fihlile boemong ba ts'ebetso eo lisebelisoa tse tloaelehileng tsa GaA1As, GaAsP, le GaP li ke keng tsa li finyella. Ka 1991, Toshiba oa Japane le HP oa United States ba ile ba hlahisa LED ea InGaA1P620nm ea lamunu e khanyang haholo, 'me ka 1992, InGaA1P590nm e mosehla e khanyang ka ho fetisisa ea LED e ile ea sebelisoa. Selemong sona seo, Toshiba o ile a hlahisa InGaA1P573nm e mosehla e tala e khanyang ka ho fetesisa ea LED e nang le khanya e tloaelehileng ea 2cd. Ka 1994, Nichia Corporation ea Japane e ile ea hlahisa LED ea InGaN450nm e putsoa (e tala) e khanyang haholo. Mothating ona, mebala e meraro ea mantlha e hlokahalang bakeng sa ponts'o ea 'mala, e khubelu, e tala, e putsoa, ​​hammoho le li-LED tse lamunu le tse mosehla, kaofela li se li fihlile boemong ba khanya ea Candela, li fihletse khanya e phahameng haholo le ponts'o ea mebala e felletseng, e etsa hore kantle e be e felletseng. pontsho ya mebala ya ditshupu tse ntshang kganya ntho ya nnete. Ntlafatso ea LED naheng ea rona e qalile lilemong tsa bo-1970, 'me indasteri e ile ea hlaha ka bo-1980. Ho na le likhoebo tse fetang 100 naheng ka bophara, 'me 95% ea bahlahisi ba kenya letsoho tlhahisong ea liphutheloana tsa poso, mme hoo e batlang e le li-chips tsohle tse hlokahalang li romelloa kantle ho naha. Ka "Merero ea Lilemo Tse Hlano" e 'maloa bakeng sa phetoho ea theknoloji, tsoelo-pele ea theknoloji, kenyelletso ea lisebelisoa tse tsoetseng pele tsa linaha tse ling le mekhoa e meng ea bohlokoa ea theknoloji, theknoloji ea tlhahiso ea LED ea Chaena e hatetse pele.

1. Ts'ebetso ea khanya e phahameng ea LED:
Ha e bapisoa le GaAsP GaPLED, A1GaAsLED e khubelu e khanyang haholo e na le ts'ebetso e phahameng ea khanya, 'me katleho e khanyang ea transparent low difference (TS) A1GaAsLED (640nm) e haufi le 10lm / w, e leng makhetlo a 10 ho feta ea GaAsP GaPLED e khubelu. Khanya e phahameng haholo ea InGaAlPLED e fana ka mebala e ts'oanang le ea GaAsP GaPLED, ho kenyelletsa: botala bo bosehla (560nm), botala bo bosehla (570nm), bosehla (585nm), bosehla bo khanyang (590nm), lamunu (605nm), le bofubelu bo khanyang (625nm). , bofubelu bo tebileng (640nm)). Ha ho bapisoa ts'ebetso e khanyang ea substrate e pepeneneng ea A1GaInPLED le meaho e meng ea LED le mehloli ea mabone a incandescent, katleho e khanyang ea InGaAlPLED absorbing substrate (AS) ke 101m/w, 'me katleho e khanyang ea transparent substrate (TS) ke 201m/w, e leng 10 -Makhetlo a 20 a phahame ho feta a GaAsP GaPLED sebakeng sa wavelength ea 590-626nm; Boemong ba maqhubu a maqhubu a 560-570, e phahame ka makhetlo a 2-4 ho feta GaAsP GaPLED. Khanya e phahameng haholo ea InGaNFED e fana ka leseli le leputsoa le botala, le bolelele ba maqhubu a 450-480nm bakeng sa boputsoa, ​​​​500nm bakeng sa botala bo boputsoa, ​​​​le 520nm bakeng sa botala; Bokhoni ba eona bo khanyang ke 3-151m/w. Bokhoni ba hona joale bo khanyang ba li-LED tse khanyang ka ho fetesisa bo feta ba mabone a incandescent a nang le li-filters, 'me a ka nka sebaka sa mabone a incandescent ka matla a ka tlase ho 1 watt. Ho feta moo, lisebelisoa tsa LED li ka nka sebaka sa mabone a incandescent ka matla a ka tlase ho 150 watts. Bakeng sa lisebelisoa tse ngata, li-incandescent bulbs li sebelisa li-filters ho fumana mebala e khubelu, ea lamunu, e tala le e putsoa, ​​athe ho sebelisa li-LED tse khanyang haholo li ka fumana 'mala o tšoanang. Lilemong tsa morao tjena, li-LED tse khanyang haholo tse entsoeng ka thepa ea AlGaInP le InGaN li kopantse li-chips tsa LED tse ngata (tse khubelu, tse putsoa, ​​​​tse tala), tse lumellang mebala e fapaneng ntle le tlhoko ea li-filters. Ho kopanyelletsa le bofubelu, lamunu, bosehla, botala, le boputsoa, ​​khanya ea tsona e khantšitse ho feta ea mabone a incandescent ’me e haufi le ea mabone a fluorescent a eang pele. Khanya e khanyang e fetile 1000mcd, e ka khotsofatsang litlhoko tsa ntle tsa leholimo tsohle le pontšo ea mebala e feletseng. Sesepa se seholo sa 'mala oa LED se ka emela leholimo le leoatle,' me se fihlelle animation ea 3D. Moloko o mocha oa li-LED tse khanyang tse khubelu, tse tala le tse putsoa li fihletse ho feta leha e le neng pele

2. Ts'ebeliso ea khanya e phahameng ea LED:
Pontšo ea lets'oao la koloi: Mabone a bontšang koloi ka ntle ho koloi haholo-holo ke mabone a lebang tsela, mabone a ka morao le mabone a mariki; Ka hare ho koloi e sebetsa haholo-holo e le mabone le pontšo bakeng sa lisebelisoa tse sa tšoaneng. Ultra khanya e phahameng ea LED e na le melemo e mengata ha e bapisoa le mabone a tloaelehileng a incandescent bakeng sa mabone a pontšo ea likoloi, 'me e na le' maraka o pharaletseng indastering ea likoloi. Li-LED li khona ho mamella litšisinyeho tse matla tsa mochini le ho thothomela. Karolelano ea bophelo ba MTBF ea mabone a brake ea LED ke litaelo tse 'maloa tsa boholo bo phahameng ho feta tsa li-bulbs tsa incandescent, tse fetang hōle bophelo ba ho sebetsa ba koloi ka boeona. Ka hona, mabone a brake a LED a ka phutheloa ka kakaretso ntle le ho nahana ka tlhokomelo. Transparent substrate Al GaAs le AlInGaPLED li na le khanya e phahameng haholo ha li bapisoa le mabone a incandescent a nang le li-filters, a lumellang mabone a brake a LED le matšoao a ho fetola maqhubu a tlase, hangata ke 1/4 feela ea mabone a incandescent, ka hona a fokotsa sebaka seo likoloi li ka se tsamaeang. Matla a tlase a motlakase a ka boela a fokotsa molumo le boima ba tsamaiso ea motlakase ea ka hare ea koloi, ha a ntse a fokotsa mocheso o ka hare oa mabone a mabone a LED a kopantsoeng, a lumellang tšebeliso ea polasetiki e nang le mocheso o fokolang oa mocheso bakeng sa lilense le matlo. Nako ea karabelo ea mabone a brake a LED ke 100ns, e khuts'oane ho feta ea mabone a incandescent, a siea nako e eketsehileng ea ho arabela ho bakhanni le ho ntlafatsa polokeho ea ho khanna. Khanya le 'mala oa mabone a pontšo ea ka ntle a koloi a hlalosoa ka ho hlaka. Leha ponts'o ea mabone a kahare a likoloi e sa laoloe ke mafapha a amehang a mmuso joalo ka mabone a matšoao a kantle, baetsi ba likoloi ba na le litlhoko tsa 'mala le khanya ea li-LED. GaPLED esale e sebelisoa likoloing, 'me khanya e phahameng haholo ea AlGaInP le InGaNFED li tla nkela li-bulbs tse ngata tsa incandescent sebakeng sa likoloi ka lebaka la bokhoni ba tsona ba ho fihlela litlhoko tsa bahlahisi mabapi le mebala le khanya. Ho ea ka pono ea theko, le hoja mabone a LED a ntse a le theko e boima ha a bapisoa le mabone a incandescent, ha ho na phapang e khōlō ea theko pakeng tsa mekhoa e 'meli ka kakaretso. Ka nts'etsopele e sebetsang ea khanya e phahameng haholo ea TSAlGaAs le li-LED tsa AlGaInP, litheko li ntse li theoha khafetsa lilemong tsa morao tjena, 'me boholo ba phokotso e tla ba kholo le ho feta nakong e tlang.

Pontšo ea lets'oao la sephethephethe: Ho sebelisa li-LED tse khanyang haholo ho e-na le mabone a incandescent bakeng sa mabone a mabone a sephethephethe, mabone a lemosang le mabone a matšoao joale a atile lefatšeng ka bophara, ka 'maraka o pharaletseng le tlhoko e ntseng e hola ka potlako. Ho ea ka lipalo-palo tse tsoang Lefapheng la Lipalangoang la United States ka 1994, ho ne ho e-na le mateano a litsela a 260000 United States moo matšoao a sephethephethe a ileng a kenngoa teng, ’me mateano ka ’ngoe a tlameha ho ba le bonyane matšoao a 12 a litsela tse khubelu, tse mosehla le tse botala bo boputsoa. Li mateanong a litsela tse ngata li boetse li na le matšoao a eketsehileng a phetoho le mabone a lemosang a batho ba tšelang tsela. Ka tsela ena, ho ka ba le mabone a 20 mateanong a litsela, ’me a tlameha ho khantša ka nako e le ’ngoe. Ho ka hakanyetsoa hore ho na le mabone a sephethephethe a ka bang limilione tse 135 United States. Hona joale, tšebeliso ea li-LED tse khanyang ka ho fetisisa ho nka sebaka sa mabone a tloaelehileng a incandescent a fihletse liphello tse kholo ho fokotsa tahlehelo ea matla. Japane e sebelisa li-kilowatt tse ka bang limilione tse 1 tsa motlakase ka selemo ka mabone a sephethephethe, 'me ka mor'a ho nkela li-bulbs tsa incandescent sebaka ka li-LED tse khanyang haholo, tšebeliso ea eona ea motlakase ke 12% feela ea ea pele.
Balaodi ba nang le bokgoni ba naha ka nngwe ba tlameha ho theha melawana e tsamaellanang ya mabone a mabone a sephethephethe, ba hlakise mmala wa letshwao, matla a ho bonesa a fokolang, paterone ya kabo ya sebaka ya lebone, le ditlhoko tsa tikoloho ya ho kenngwa. Leha litlhoko tsena li ipapisitse le mabone a incandescent, hangata a sebetsa ho mabone a mabone a sephethephethe a LED a sebelisoang hajoale. Ha ho bapisoa le mabone a incandescent, mabone a sephethe-phethe a LED a na le nako e telele ea ho sebetsa, hangata ho fihlela lilemo tse 10. Ha ho nahanoa ka phello ea tikoloho e thata ea kantle, nako e lebelletsoeng ea bophelo e lokela ho fokotsoa ho lilemo tse 5-6. Hajoale, khanya e phahameng haholo ea AlGaInP e khubelu, ea lamunu le e mosehla li-LED li entsoe liindasteri 'me li batla li le theko e tlase. Haeba li-module tse entsoeng ka li-LED tse khanyang haholo li sebelisoa ho nkela lihlooho tsa matšoao a sephethe-phethe tse khubelu tse tloaelehileng, phello ea polokeho e bakoang ke ho hloleha ha mabone a mafubelu ka tšohanyetso e ka fokotsoa. Mojule o tloaelehileng oa lets'oao la sephethephethe sa LED o na le lihlopha tse 'maloa tsa mabone a LED a hokahaneng. Ho nka mohlala oa 12 inch e khubelu ea pontšo ea sephethephethe sa LED e le mohlala, ka lihlopha tse 3-9 tsa mabone a LED a kopantsoeng, palo ea mabone a LED a kopantsoeng ka sete ka 'ngoe ke 70-75 (kakaretso ea mabone a LED a 210-675). Ha leseli le le leng la LED le hlōleha, le tla ama letšoao le le leng feela la matšoao, 'me lihlopha tse setseng li tla fokotsoa ho 2/3 (67%) kapa 8/9 (89%) ea pele, ntle le ho etsa hore hlooho eohle ea pontšo e hlōlehe. joalo ka mabone a incandescent.
Bothata bo boholo ka li-module tsa matšoao a sephethephethe sa LED ke hore litšenyehelo tsa tlhahiso li ntse li le holimo. Ho nka mohlala oa 12 inch TS AlGaAs e khubelu ea lets'oao la sephethephethe sa LED e le mohlala, e qalile ho sebelisoa ka 1994 ka theko ea $350. Ka 1996, mojule oa lets'oao la sephethephethe la 12 inch AlGaInP LED e nang le ts'ebetso e ntle e bile le litšenyehelo tsa $200.

Ho lebeletsoe hore haufinyane theko ea InGaN e botala bo botala ba li-module tsa sephethephethe sa LED e tla bapisoa le AlGaInP. Le hoja litšenyehelo tsa lihlooho tsa matšoao a sephethephethe a incandescent li le tlaase, li sebelisa motlakase o mongata. Tšebeliso ea matla ea lisenthimithara tse 12 ka bophara ba sephethephethe sa hlooho ea sephethephethe ke 150W, 'me tšebeliso ea matla ea lebone la temoso ea sephethephethe ho tšela tsela le tsela ea maoto ke 67W. Ho ea ka lipalo, tšebeliso ea matla ea selemo le selemo ea mabone a pontšo ea incandescent mateanong a litsela ke 18133KWh, e lekanang le chelete ea selemo ea selemo ea motlakase ea $ 1450; Leha ho le joalo, li-module tsa lets'oao la sephethephethe sa LED li sebetsa hantle haholo, 'me e 'ngoe le e 'ngoe e khubelu ea 8-12 inch e sebelisa 15W le 20W ea motlakase ka ho latellana. Matšoao a LED mateanong a litsela a ka bontšoa ka li-switches tsa motsu, ka tšebeliso ea matla ea 9W feela. Ho ea ka lipalo, mateano ka 'ngoe a ka boloka 9916KWh ea motlakase ka selemo, ho lekana le ho boloka $793 likolotong tsa motlakase ka selemo. Ho itšetlehile ka litšenyehelo tse tloaelehileng tsa $ 200 ka mochine oa pontšo ea sephethephethe sa LED, mochine o mofubelu oa LED oa sephethephethe o ka khutlisa litšenyehelo tsa oona tsa pele ka mor'a lilemo tse 3 o sebelisa motlakase o bolokiloeng feela, 'me o qala ho fumana meputso e tsoelang pele ea moruo. Ka hona, hona joale ho sebelisa li-module tsa tlhahisoleseding ea sephethephethe sa AlGaInLED, le hoja litšenyehelo li ka 'na tsa bonahala li le holimo, li ntse li sebetsa ka nako e telele.

 


Nako ea poso: Oct-25-2024