Njengoko sonke sisazi, kukho iindlela ezimbini zovavanyo ezikhankanywe kwi-CIE121: 1966 Igatya 6.1, CIE127-2007 Igatya 6.2, kunye ne-IES-LM-79-08 Igatya 9.0: Omnye kukusebenzisa i-sphere edibanisayo kunye ne-photometer okanye i-spectroradiometer ukuvavanya. Ukukhanya okukhanyayo kwe-LED. Indlela edityanisiweyo yindlela yokulinganisa umlinganiselo wokuguquguquka okukhanyayo okupheleleyo (CIE121: 1966 Igatya 6.1.1, CIE127-2007 Igatya 6.2.2, kunye ne-IES-LM-79-08 Igatya 9.0). Enye indlela yefotometric usebenzisa i-goniophotometer. Le yeyona ndlela yokulinganisa iphelele yokukhanya okuguquguqukayo. Ukuba sisebenzisa indlela edibeneyo kunye nendlela ye-photometric yokuvavanya isibane esifanayo, sithelekisa iziphumo zovavanyo, siya kufumanisa ukuba idatha ye-flux ekhanyayo epheleleyo ehlolwe zimbini zihluke kakhulu. Eli nqaku ligxile kumahluko phakathi kovavanyo lwe-lumen yezibane ze-LED kwi-sphere yokudibanisa kunye ne-goniophotometer.
Umgaqo wendlela edityanisiweyo yokuvavanya ukuguquguquka okuqaqambileyo kukulinganisa umgangatho okhanyayo. Ekubeni ilinganiswe ngesibane esiqhelekileyo, akuyimfuneko ukwazi imveliso ye-spectral ye-sphere. I-flux ekhanyayo φTEST (λ) yemveliso yesibane se-LED evavanyiweyo ibalwa ngokuyithelekisa nesibane esiqhelekileyo. Ngokuqhelekileyo, indlela yokudibanisa ifanelekile kwizibane ezincinci ezidibeneyo ze-LED kunye nemithombo yokukhanya ye-LED encinci ukuvavanya i-flux ekhanyayo kunye ne-chromaticity parameters. Le yindlela yokuvavanya yothelekiso lokuguquguquka okukhanyayo okupheleleyo. Indlela yokudibanisa ineenzuzo zesantya sokulinganisa ngokukhawuleza kwaye akukho gumbi elimnyama. I-volume encinci, isondele kwi-point source light, isiphumo esichanekileyo sovavanyo.
Nangona kunjalo, xa usebenzisa indlela edibeneyo yokuvavanya izibane ze-LED ezinobungakanani obukhulu, imida yayo mikhulu xa ithelekiswa nendlela yefotometric. Indlela yokuqala kukusebenzisa isixhobo sovavanyo esibalulekileyo, izibane ze-LED zijongana neentlobo ngeentlobo zeendlela, imithombo yokukhanya ye-LED engenanto, iibhalbhu ze-LED ezingqukuva, isibane se-LED, njl., kunye nohlobo lwesibane se-LED sinempembelelo enkulu ekugqibeleni. uvavanyo lweflux olukhanyayo. Kwangaxeshanye, ukusebenzisa indlela yokudibanisa kukwafuna ukwenza ulungelelwaniso lwe-sphere yokudibanisa. Ngokuqhelekileyo, ukuba uvavanya izibane ze-LED, isibane esiqhelekileyo kufuneka sibe neempawu ezikhanyayo ezifanayo kwisibane esiphantsi kovavanyo, kwaye i-LED emhlophe ezinzileyo lolona khetho lungcono. Ngokuqinisekileyo, ezinye iindidi zezibane zingasetyenziswa njengomthombo wokukhanya wokulinganisa, kodwa oku kuya kuchaphazela ukuchaneka kokulinganisa. Okwesibini ngumahluko oziswa yindlela yovavanyo: Ngokubanzi, ukuba isibane esiphantsi kovavanyo siyakhanya kwindawo engqongileyo, kuyafuneka ukuba kusetyenziswe indlela yovavanyo ye-4π yokufaka isibane phantsi kovavanyo kumbindi wesphere yokudibanisa (IESLM). -79-08 Isiqendu 9.2.5). Olu hlobo lovavanyo lunesiphumo esihle. Ukuba izibane zikhanyisa ulwalathiso, njengezibane zepaneli ze-LED, izibane zesitrato ze-LED, njl., Isibane esiphantsi kovavanyo kufuneka sifakwe kwicala le-sphere yokudibanisa kuvavanyo lwe-2π (IESLM-79-08 Igatya 9.2.5) . I-4π yokudibanisa i-sphere yokulinganisa indlela yokuvavanya, ukuba amandla alinganisiweyo wesibane okanye isibane sendlu yesibane sithatha isibane esikhulu esikhulu ngobukhulu, ngaphezulu okanye ngaphantsi ngexesha lokuvavanya isiphumo sokuzibamba, isidingo sokusebenzisa eli xesha ukwenza phezulu isibane sokuncedisa Impazamo ( IESLM-79-08 Igatya 9.1.5). Ngokuqhelekileyo, indlela yokudibanisa ifanelekile kwizibane ezincinci ezidibeneyo ze-LED kunye nemithombo yokukhanya ye-LED encinci. Ukusebenzisa indlela yokudibanisa ukuvavanya izibane ze-LED ezinjalo kunokuqinisekisa ukuchaneka kunye nokuzinza kweziphumo ezikhanyayo ezikhanyayo, umzekelo, xa uvavanya izibane ze-LED ezinkulu. , Umda wendlela edibeneyo inkulu kakhulu. Isizathu, njengoko kukhankanyiwe ngasentla, kwaye uvavanyo lokugqibela lulonke olukhanyayo lunenqanaba elithile lokungaqiniseki.
Ukusetyenziswa kovavanyo lwe-spectrophotometric Iyonke i-flux ekhanyayo esasazwa nge-photometer, uvavanyo lwe-flux olukhanyayo lulonke alufane lube nemida. Photometric Uvavanyo lulonke olukhanyayo olukhanyayo lwesixhobo sokulinganisa umthombo wokukhanya usasazwa kumacala amaninzi awohlukeneyo omthombo wokukhanya (okanye ukukhanya kumgama onikiweyo ukusuka kumthombo wokukhanya) wokukhanya kokukhanya kwesixhobo, idatha yokukhanya kokukhanya kwicala ngalinye. Ukubala umbane okhanyayo opheleleyo. Xa kuthelekiswa nendlela edityanisiweyo, ngenxa yomahluko kubungakanani bokusabalalisa umthombo wokukhanya wovavanyo, indlela yefotometric ayinazimpazamo kwithiyori, ngoko ke yindlela yovavanyo olupheleleyo yokukhanya okukhanyayo kwe-LED. Ayifuni umgangatho we-flux okhanyayo, kodwa kuthatha ixesha elide kwisampuli nganye-ixesha lokulinganisa. Ukwamkela indlela ye-photometric, uvavanyo lweGoniophotometer luya kubandakanya Uhlobo lwe-C Goniophotometer (IES-LM-79-08 Igatya 9.3.1, CIE121: 1996 Igatya 3.2) igumbi elimnyama, umgama wovavanyo (IES-LM-79-08 Igatya 9.3, CIE121: 1996: 6.2.1.4) Umhlathi 121 ), njalo njalo. Imiba ephambili echaphazela umahluko kwisiphumo esipheleleyo se-flux ekhanyayo ye-goniophotometer luhlobo lwe-goniophotometer, indlela yovavanyo (CIE1996: 3.4.2 Igatya 3.4.1, Igatya 3.4.3 kunye neGatya XNUMX), umgama wovavanyo, i Izibane ze-photometric probe, njl, ngokutsho Ukuvavanya iintlobo ezahlukeneyo zeemveliso ze-LED, sinokuhlengahlengisa iindlela ezifanelekileyo zokuvavanya okanye izixhobo; ukuba sidibana neemveliso ze-LED ezine-angle emxinwa, sinokukhetha i-Goniophotometer encinci, khetha Uhlobo lwe-C Goniophotometer, ukulungelelanisa umgama wokuvavanya, kwaye ukhethe inqanaba eliphezulu leeprobes ze-photometric ze-Class L zinokufikelela kuvavanyo oluchanekileyo oluchanekileyo lwe-flux ekhanyayo. Ekuvavanyeni umbane okhanyayo we-LED, uvavanyo lwe-photometric lunokufikelela kumlinganiselo ochanekileyo ophezulu. Ngenxa yemida yendalo yokudibanisa, kunzima ukuphelisa impazamo ngohlengahlengiso lwezixhobo, kwaye kunokunciphisa le mpazamo kuphela. Ngelo xesha, uvavanyo lwe-photometric Izixhobo ezifunekayo ngokwazo azikhawulelwanga kakhulu, ngoko ke impazamo inokuhlawulwa ngokuphucula ukumodareyitha kunye nokusebenza kwezixhobo.
Njengoko kuchaziwe ngasentla, enye yeendlela ezilula zokulinganisa ukukhanya okukhanyayo kwe-LED kukusebenzisa i-photometer edibeneyo yesphere. Yisixhobo sokuseta esidibeneyo ngokubonakalayo. Ukusebenzisa i-distal ye-photometer esisigxina ukulinganisa itotali yokulinganisa ubuninzi ngokukhawuleza kwaye kulula. Sebenzisa umgangatho wokuguquguquka okukhanya uwonke ukulungelelanisa ifotomitha yesphere edibanisayo. Umthombo wokukhanya wokuvavanya ulinganiswa ngokuthelekisa kunye nomthombo wokukhanya osemgangathweni kunye nokusabalalisa okufanayo kwendawo kunye ne-spectral. Ke ngoko, le ndlela ifuna umthombo wokukhanya osemgangathweni olungelelaniswe ukuguquguquka okukhanyayo. Xa kuthelekiswa nomvavanyi wokusabalalisa ukukhanya, isantya sokuvavanya sikhawuleza kakhulu, kodwa xa ukusabalalisa ubukhulu bendawo yovavanyo lwe-LED, kunye nomthombo wokukhanya osemgangathweni awufani, kulula ukuvelisa iimpazamo. Olu hlobo lwempazamo kunzima ukululungisa, ngoko kufuneka lube ngoyilo olugqwesileyo lwejometri kunye neentlobo ezifanayo zee-LED eziqhelekileyo ukunciphisa le mpazamo.
Njengoko kukhankanyiwe ngaphambili, okukhona imilo yovavanyo isondele kwindawo yomthombo wokukhanya, kokukhona ichaneka ngakumbi isiphumo sovavanyo lwesphere yokudibanisa iya kuba. Ke xa sifuna ukuvavanya ixabiso le-lumen yezibane, kwizibane zebhalbhu, izibane ezincinci ze-LED, izibane ezidibeneyo ze-LED, iityhubhu zesibane, kunye nezinye izibane ezine-angle ye-beam enkulu kuno-180 °, sinokusebenzisa i-sphere yokudibanisa kunye ne-spectrometer yovavanyo lwe-4π. . Izibane zephaneli ezinkulu, izibane eziguquguqukayo, izibane zendlela, kunye nezinye izibane ezine-engile ye-beam engaphantsi kwe-180°, ukuba ufuna ukusebenzisa i-sphere edibanisayo yovavanyo, kufuneka usebenzise i-sphere edibanisayo enemivulo emacaleni yovavanyo lwe-2π okanye usebenzise izibane ezincedisayo. uncedo Uvavanyo, inkqubo yovavanyo iyadika kwaye ayiqinisekanga. Eyona ndlela yokuvavanya echanekileyo yolu hlobo lwesibane kukusebenzisa i-goniophotometer enegumbi elimnyama eliqhelekileyo lokuvavanya. Unokufumana ukukhanya okukhanyayo okuchaneke ngakumbi. Nangona kunjalo, xa ixesha lovavanyo kunye ne-photometer lisasazwa, ukungafani kwindlela yokuvavanya kufuneka kuqatshelwe ukuba, njengoko isibane sepaneli sisetyenziswa ngokuqhelekileyo uvavanyo lwe-C-γ, izibane zendlela kunye ne-spotlights zicetyiswa ngokubanzi uvavanyo lwe-B-β; Kwakhona kufuneka uMgangatho Igumbi elimnyama lifuna imeko-bume yovavanyo yobuchule ngakumbi kunye nabasebenzi bovavanyo ukuze basebenze xa kuthelekiswa novavanyo lwesphere yokudibanisa.
Isishwankathelo, imigaqo yokulinganisa, okusingqongileyo, kunye neendlela zokuvavanya zokudibanisa i-sphere kunye ne-goniophotometer zahlukile, kwaye iziphumo zokulinganisa zombini azinakuthelekiswa. Sinokukhetha indlela efanelekileyo yokuvavanya ngokwemigangatho eyahlukeneyo kunye neemfuno ezahlukeneyo.
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