Nakuba imisebe ye-UV ingaba yingozi ezintweni eziphilayo ekuphileni kwansuku zonke, njengokushiswa yilanga, imisebe ye-UV izonikeza imiphumela eminingi enenzuzo emikhakheni ehlukahlukene.Njengama-LED ajwayelekile okukhanya abonakalayo, ukuthuthukiswa kwama-LED e-UV kuzoletha ukunethezeka okwengeziwe ezinhlelweni eziningi ezahlukene.
Intuthuko yakamuva yezobuchwepheshe inweba izingxenye zemakethe ye-UV LED ziye ezingeni eliphezulu lokusungula izinto ezintsha nokusebenza komkhiqizo.Onjiniyela bokuklama bayaqaphela ukuthi ubuchwepheshe obusha bama-LED e-UV bungaveza inzuzo enkulu, amandla nokonga isikhala uma kuqhathaniswa nobunye ubuchwepheshe.Ubuchwepheshe besizukulwane esilandelayo se-UV LED bunezinzuzo ezinhlanu ezibalulekile, yingakho imakethe yalobu buchwepheshe kulindeleke ukuthi ikhule ngo-31% eminyakeni engu-5 ezayo.
Uhlu olubanzi lokusebenzisa
I-spectrum yokukhanya kwe-ultraviolet iqukethe wonke amaza amaza ukusuka ku-100nm kuya ku-400nm ubude futhi ngokuvamile ihlukaniswa izigaba ezintathu: UV-A (315-400 nanometers, owaziwa nangokuthi i-long-wave ultraviolet), UV-B (280-315 nanometers, futhi eyaziwa ngokuthi i-medium wave) I-Ultraviolet), i-UV-C (100-280 nanometers, eyaziwa nangokuthi i-short-wave ultraviolet).
Amathuluzi wamazinyo nokuhlonza izinhlelo zokusebenza kwakuyizinhlelo zangaphambi kwesikhathi zama-LED e-UV, kodwa ukusebenza, izindleko nokuhlala isikhathi eside, kanye nokuphila komkhiqizo okwandisiwe, kukhulisa ngokushesha ukusetshenziswa kwama-UV LED.Ukusetshenziswa kwamanje kwama-LED e-UV ahlanganisa: izinzwa zamehlo nezinsimbi (230-400nm), ukuqinisekiswa kwe-UV, amabhakhodi (230-280nm), ukuvala inzalo emanzini angaphezulu (240-280nm), ukuhlonza nokutholwa nokuhlaziya uketshezi lomzimba (250-405nm), Ukuhlaziywa kwamaprotheni nokutholakala kwezidakamizwa (270-300nm), ukwelapha ukukhanya kwezokwelapha (300-320nm), ukuphrinta kwe-polymer noyinki (300-365nm), umgunyathi (375-395nm), inzalo yangaphezulu/ inzalo yezimonyo (390-410nm) ).
Umthelela wendawo - ukusetshenziswa kwamandla okuphansi, ukumosha okuncane futhi azikho izinto eziyingozi
Uma kuqhathaniswa nobunye ubuchwepheshe, ama-UV LED anezinzuzo ezicacile zemvelo.Uma kuqhathaniswa namalambu e-fluorescent (CCFL), ama-UV LED anokusetshenziswa kwamandla okuphansi ngo-70%.Ngaphezu kwalokho, i-UV LED inesitifiketi se-ROHS futhi ayinayo i-mercury, into eyingozi evame ukutholakala kubuchwepheshe be-CCFL.
Ama-UV LED mancane ngosayizi futhi ahlala isikhathi eside kunama-CCFL.Ngenxa yokuthi ama-UV LED awakwazi ukudlidliza- futhi amelana nokushaqeka, ukuphuka akuvamile, kunciphisa imfucuza nezindleko.
Iukwandisa ukuphila isikhathi eside
Kule minyaka eyishumi edlule, ama-UV LED abekwe inselelo mayelana nokuphila konke.Naphezu kwezinzuzo zayo eziningi, ukusetshenziswa kwe-UV LED kwehle kakhulu ngenxa yokuthi i-UV beam ijwayele ukudiliza i-epoxy resin ye-LED, kwehlisa isikhathi sokuphila se-UV LED sibe ngaphansi kwamahora angu-5,000.
Isizukulwane esilandelayo sobuchwepheshe be-UV LED sibonisa i-epoxy encapsulation "eqinisiwe" noma "i-UV-resistant", okuthi, ngenkathi inikeza ukuphila kwamahora angu-10,000, isekude nokwanele ezinhlelweni eziningi zokusebenza.
Ezinyangeni ezimbalwa ezedlule, ubuchwepheshe obusha buyixazulule le nselele yobunjiniyela.Isibonelo, iphakheji eqinile ye-TO-46 ene-glass lens yasetshenziswa esikhundleni se-epoxy lens, eyanweba impilo yayo yesevisi okungenani izikhathi eziyishumi kuya ku-50,000 amahora.Ngale nselelo enkulu yobunjiniyela kanye nezinkinga ezihlobene nokuzinzisa ngokuphelele kobude begagasi obuxazululiwe, ubuchwepheshe be-UV LED buye baba inketho ekhangayo enanini elikhulayo lezinhlelo zokusebenza.
Pukusebenza kahle
Ama-LED ama-UV aphinde anikeze izinzuzo zokusebenza ezibalulekile kunobunye ubuchwepheshe.Ama-LED e-UV ahlinzeka nge-engeli encane ye-beam kanye nomugqa ofanayo.Ngenxa yokusebenza kahle okuphansi kwama-LED e-UV, onjiniyela abaningi bedizayini bafuna i-engeli ye-beam ekhulisa amandla okukhiphayo endaweni ethile eqondiwe.Ngamalambu e-UV ajwayelekile, onjiniyela kufanele bathembele ekusebenziseni ukukhanya okwanele ukukhanyisa indawo ukuze ifane futhi ihlangane.Kuma-LED e-UV, isenzo selensi sivumela amandla amaningi okukhiphayo e-UV LED ukuthi agxiliswe lapho edingeka khona, okuvumela i-engeli yokukhipha eqinile.
Ukuze kufane nalokhu kusebenza, obunye ubuchwepheshe buzodinga ukusetshenziswa kwamanye amalensi, kwengeze izindleko ezengeziwe nezimfuneko zesikhala.Ngenxa yokuthi ama-LED e-UV awadingi amalensi engeziwe ukuze afinyelele ama-engeli aqinile we-beam namaphethini emishayo afanayo, ukusetshenziswa kwamandla okuphansi nokuqina okukhulayo, ama-LED e-UV abiza uhhafu wokuthi asetshenziswe uma kuqhathaniswa nobuchwepheshe be-CCFL.
Izinketho ezizinikezele ezingabizi kakhulu zakha isixazululo se-UV LED sohlelo lokusebenza oluthile noma sebenzisa ubuchwepheshe obujwayelekile, okwangaphambili kuvame ukuba wusizo kakhulu ngokwezindleko nokusebenza.Ama-LED e-UV asetshenziswa kumalungu afanayo ezimweni eziningi, futhi ukuvumelana kwephethini ye-beam nokuqina kuyo yonke inhlangano kubalulekile.Uma umphakeli oyedwa ehlinzeka lonke uhlobo oludidiyelwe oludingekayo kuhlelo lokusebenza oluthile, isamba sebhili yezinto ezibonakalayo siyehliswa, inani labahlinzeki liyancishiswa, futhi amalungu afanayo angahlolwa ngaphambi kokuthunyelwa kunjiniyela wokuklama.Ngale ndlela, okwenziwayo okumbalwa kungasindisa izindleko zobunjiniyela nezokuthenga futhi kunikeze izixazululo ezisebenza kahle ezihambisana nezidingo zohlelo lokusebenza.
Qiniseka ukuthi uthola umphakeli ongakunikeza izisombululo zangokwezifiso ezingabizi futhi ongaklama izixazululo eziqondene nezidingo zakho zohlelo lokusebenza.Isibonelo, umphakeli onokuhlangenwe nakho kweminyaka eyishumi ekwakhiweni kwe-PCB, i-optics yangokwezifiso, ukulandelela ama-ray nokubunjwa uzokwazi ukunikeza izinhlobonhlobo zezinketho zezixazululo ezingabizi kakhulu nezikhethekile.
Sengiphetha, ukuthuthukiswa kwakamuva kwezobuchwepheshe kuma-LED e-UV kuxazulule inkinga yokuzinza okuphelele futhi kwanweba kakhulu isikhathi sabo sokuphila saba amahora angu-50,000.Ngenxa yezinzuzo eziningi zama-LED we-UV njengokuqina okuthuthukisiwe, azikho izinto eziyingozi, ukusetshenziswa kwamandla okuphansi, usayizi omncane, ukusebenza okuphezulu, ukonga izindleko, izinketho zokwenza ngokwezifiso ezingabizi, njll., ubuchwepheshe buya ngokuya budlondlobala ezimakethe, ezimbonini nasezindaweni eziningi. isebenzisa Inketho ekhangayo.
Ezinyangeni neminyaka ezayo, kuzoba nokunye ukuthuthuka, ikakhulukazi ohlelweni olusebenza kahle.Ukusetshenziswa kwama-UV LEDs kuzokhula ngokushesha okukhulu.
Inselele enkulu elandelayo yobuchwepheshe be-UV LED ukusebenza kahle.Ezinhlelweni eziningi ezisebenzisa amaza amaza angaphansi kuka-365nm, njenge-phototherapy yezokwelapha, isibulala-magciwane samanzi kanye nokwelapha nge-polymer, amandla okukhiphayo ama-LED e-UV angama-5% -8% kuphela wamandla okokufaka.Uma ubude begagasi bungu-385nm nangaphezulu, ukusebenza kahle kwe-UV LED kuyanda, kodwa futhi kuphela u-15% wamandla okokufaka.Njengoba ubuchwepheshe obusafufusa buqhubeka nokubhekana nezinkinga zokusebenza kahle, izicelo eziningi zizoqala ukusebenzisa ubuchwepheshe be-UV LED.
Isikhathi sokuthumela: Feb-21-2022