Ukusungulwa kwama-LED (light emitting diode) kwakuyinqubo enezigaba eziningi ehlanganisa iminikelo yososayensi abaningi. Nazi ezinye izikhathi ezibalulekile zomlando ekusungulweni kwama-LED:
Ithiyori yakuqala nokuhlolwa:
1907:Usosayensi waseBrithani u-HJ Round waqala ukubona ukuthi i-semiconductor material silicon carbide (SiC) ikhipha ukukhanya lapho kusetshenziswa ugesi. Lesi kwakuyisenzakalo sokuqala esirekhodiwe se-electroluminescence yezinto zokwakha ze-semiconductor.
1920s:Usosayensi waseRussia u-Oleg Losev waqhubeka wafunda lesi senzakalo futhi wanyathelisa iphepha ngezimiso zama-LED ngo-1927, kodwa akuzange kudonse ukunaka okusakazekile ngaleso sikhathi.
Ukuthuthukiswa kwama-LED asebenzayo:
1962:U-Nick Holonyak Jr., unjiniyela owayesebenza kwa-General Electric (GE) ngaleso sikhathi, wasungula ukukhanya okubonakalayo okubonakalayo kwe-LED (i-LED ebomvu). U-Holonyak waziwa ngokuthi "uBaba wama-LED".
1972:M. George Craford, umfundi wase-Holonyak, wasungula i-LED yokuqala ephuzi futhi wathuthukisa kakhulu ukukhanya kwama-LED abomvu nawolintshi. Wenze ukuthuthukiswa okusekelwe ku-gallium nitride phosphorus (GaAsP) ukuze akhulise ukukhanya kwama-LED ngokuphindwe kashumi.
1970s and 1980s: Ukuthuthukiswa kobuchwepheshe kwaholela ekudalweni kwama-LED ngemibala eyengeziwe, ehlanganisa eluhlaza, ophuzi, nowolintshi.
I-Blue LED Breakthrough:
1990s:Ososayensi e-Hitachi nase-Nichia, ikakhulukazi u-Shuji Nakamura, basungule ama-LED aluhlaza okwesibhakabhaka anokukhanya okuphezulu. Lokhu kwaba impumelelo enkulu kusetshenziswa izinto ze-gallium nitride (GaN). Ukusungulwa kwama-LED aluhlaza okwesibhakabhaka kwenza izibonisi ezinombala ogcwele nama-LED amhlophe abe nokwenzeka.
2014:UShuji Nakamura, u-Isamu Akasaki, no-Hiroshi Amano baklonyeliswe ngendondo ye-Nobel ku-Physics ngomsebenzi wabo kuma-LED aluhlaza.
Ukuthuthukiswa kwama-LED amhlophe:
Ama-LED amhlophe avamise ukudalwa ngokuhlanganisa ama-LED aluhlaza namaphosphor. Ukukhanya okuluhlaza okwesibhakabhaka okuvela ku-LED eluhlaza okwesibhakabhaka kujabulisa i-phosphor, ebese ikhipha ukukhanya okuphuzi, futhi ukuhlanganiswa kwakho kokubili kukhiqiza ukukhanya okumhlophe.
Ukuthuthukiswa kobuchwepheshe be-LED kuye kwaholela ezinhlobonhlobo zemibala ye-LED hhayi kuphela ebangeni elibonakalayo, kodwa futhi ku-ultraviolet ne-infrared ranges. Namuhla, ama-LED asetshenziswa ezinhlelweni ezihlukahlukene, okuhlanganisa izibonisi, ukukhanyisa, izibani zezinkomba, nokuxhumana.
Okulandelayo kwethula ukuhlukaniswa okuyisisekelo kanye nokusetshenziswa kwe-LED
● Ukuhlelwa ngamandla okukhiphayo: 0.4W, 1.28W, 1.4W, 3W, 4.2W, 5W, 8W, 10.5W, 12W, 15W, 18W, 20W, 23W, 25W, 30W, 45W, 20W, 10W, 1 , 200W, 300W, njll.
● Ukuhlelwa nge-voltage ephumayo: DC4V, 6V, 9V, 12V, 18V, 24V, 36V, 42V, 48V, 54V, 63V, 81V, 105V, 135V, njll.
● Ukuhlukaniswa ngesakhiwo sokubukeka: izinhlobo ezimbili: ibhodi elingenalutho le-PCBA kanye negobolondo.
● Ukuhlukaniswa ngesakhiwo sokuphepha: izinhlobo ezimbili: ezihlukanisiwe nezingezodwa.
● Ukuhlelwa ngokwesici samandla: ngokulungiswa kwesici samandla futhi ngaphandle kwesici samandla.
● Ukuhlelwa ngokusebenza kokungangeni kwamanzi: ukuvikela amanzi nokungangeni kwamanzi.
● Ukuhlukaniswa ngendlela yokuvusa: ukuzivusa kanye nokuvusa amadlingozi kwangaphandle.
● Ukuhlelwa nge-topology yesifunda: RCC, Flyback, Forward, Half-Bridge, Full-Bridge, Push-PLL, LLC, njll.
● Ukuhlelwa ngendlela yokuguqula: AC-DC kanye ne-DC-DC.
● Ukuhlelwa ngokusebenza kokuphumayo: i-voltage engaguquki, i-voltage engaguquki kanye nakho kokubili i-voltage engaguquki yamanje nenjalo.
Ukusetshenziswa kwamandla omshayeli we-LED:
Isetshenziselwa izibani, izibani zekhabethe, izibani zasebusuku, izibani zokuvikela amehlo, izibani zesilingi ze-LED, izinkomishi zamalambu, izibani ezifihliwe, izibani zangaphansi kwamanzi, amawasha odongeni, ama-floodlight, amalambu omgwaqo, amabhokisi okukhanya ebhodini, amalambu ezintambo, amalambu aphansi, amalambu anomumo okhethekile, inkanyezi. amalambu, amalambu e-Guardrail, amalambu e-rainbow, amalambu odonga lwamakhethini, amalambu aguqukayo, amalambu, amalambu amabhande, amalambu e-piranha, amalambu e-fluorescent, amalambu aphezulu, amalambu ebhuloho, amalambu ezimayini, amathoshi, amalambu aphuthumayo, amalambu etafula, ukukhanyisa, amarobhothi, amalambu okonga amandla, amalambu emoto angemuva, amalambu otshani, amalambu anemibala, amalambu ayikristalu, amalambu e-grille, amalambu emhubhe, njll.
Singabahlinzeki bogesi be-LED abaqeqeshiwe e-China, siyakwamukela ukubukaikhathalogi yethu yomkhiqizo.
Sicela uthintane ukuze uthole amamodeli engeziwe, usekele imikhiqizo eyenziwe ngokwezifiso.
Isikhathi sokuthumela: Aug-03-2024