Njengoba sonke sazi, kunezindlela ezimbili zokuhlola ezishiwo ku-CIE121: 1966 Isigaba somthetho 6.1, CIE127-2007 Isigaba somthetho 6.2, kanye ne-IES-LM-79-08 Isigaba somthetho 9.0: Enye iwukusebenzisa i-interating sphere kanye ne-photometer noma i-spectroradiometer ukuhlola Ukukhanya okukhanyayo kwe-LED. Indlela ebalulekile iyindlela yokulinganisa ehlobene yokuguquguquka okukhanyayo okuphelele (CIE121: 1966 Isigaba somthetho 6.1.1, CIE127-2007 Isigaba somthetho 6.2.2, kanye ne-IES-LM-79-08 Isigaba somthetho 9.0). Enye indlela ye-photometric esebenzisa i-goniophotometer. Lena indlela yokulinganisa ephelele yokugeleza okukhanyayo okuphelele. Uma sisebenzisa indlela ebalulekile kanye nendlela ye-photometric ukuhlola isibani esifanayo, siqhathanisa imiphumela yokuhlolwa, sizothola ukuthi idatha ephelele ye-flux ekhanyayo ehlolwe yizinto ezimbili ihluke kakhulu. Lesi sihloko sigxile kumehluko phakathi kokuhlolwa kwe-lumen kwamalambu e-LED ku-interating sphere kanye ne-goniophotometer.
Umgomo wendlela ebalulekile yokuhlola ukugeleza okukhanyayo okuphelele ukulinganisa indinganiso ye-flux ekhanyayo. Njengoba ilinganiswa ngesibani esijwayelekile, akudingekile ukwazi ukukhishwa kwe-spectral ye-sphere. I-flux ekhanyayo engu-φTEST (λ) yomkhiqizo wesibani se-LED ehloliwe ibalwa ngokuyiqhathanisa nesibani esijwayelekile. Ngokuvamile, indlela yokuhlanganisa ifanele izibani ze-LED ezididiyelwe ezincane kanye nemithombo yokukhanya ye-LED emincane uma kuqhathaniswa ukuze kuhlolwe imingcele ekhanyayo ekhanyayo nemingcele ye-chromaticity. Lena indlela yokuhlola yokuqhathanisa yokuguquguquka okukhanyayo okuphelele. Indlela yokuhlanganisa inezinzuzo zejubane lokulinganisa elisheshayo futhi alikho igumbi elimnyama. Ivolumu encane, ukusondela komthombo wokukhanya wephoyinti, umphumela wokuhlola unembe kakhulu.
Kodwa-ke, lapho usebenzisa indlela ebalulekile yokuhlola amalambu e-LED anosayizi omkhulu, imikhawulo yawo mikhulu kakhulu uma iqhathaniswa nendlela ye-photometric. Indlela yokuqala ukusebenzisa isihluthulelo sokuhlola esibalulekile, izibani ze-LED zibhekana nezinhlobo ezihlukahlukene, imithombo yokukhanya ye-LED engenalutho, ama-LED ama-spherical bulbs, isibani se-LED, njll., kanye nohlobo lwesibani se-LED sinethonya elikhulu ekugcineni. ukuhlolwa kwe-flux ekhanyayo. Ngesikhathi esifanayo, ukusebenzisa indlela yokuhlanganisa futhi kudingeka wenze ukulinganisa kwe-sphere yokuhlanganisa. Ngokuvamile, uma uhlola izibani ze-LED, isibani esijwayelekile sidinga ukuba nezici ezikhanyayo ezifanayo nesibani esingaphansi kokuhlolwa, futhi i-LED emhlophe ezinzile iyisinqumo esingcono kakhulu. Yiqiniso, ezinye izinhlobo zezibani nazo zingasetshenziswa njengomthombo wokukhanya wokulinganisa, kodwa lokhu kuzothinta ukunemba kokulinganisa. Okwesibili umehluko olethwa indlela yokuhlola: Ngokuvamile, uma isibani esingaphansi kokuhlolwa sikhanya endaweni ezungezile, kuyadingeka ukusebenzisa indlela yokuhlola engu-4π ukufaka isibani esivivinywa phakathi nendawo ye-interating sphere (IESLM). -79-08 Isigaba 9.2.5). Lolu hlobo lokuhlola lunomphumela omuhle kakhulu. Uma izibani ziyizibani eziqondisayo, njengezibani zephaneli ye-LED, izibani zasemgwaqweni ze-LED, njll., isibani esingaphansi kokuhlolwa sidinga ukufakwa ohlangothini lwendilinga ehlanganisayo ukuze kuhlolwe i-2π (IESLM-79-08 Isigaba somthetho 9.2.5) . I-4π ehlanganisa i-sphere yokulinganisa indlela yokuhlola, uma amandla akalwa esibani noma endlu yesibani ethatha isibani esikhulu esikhulu ngosayizi, ngaphezulu noma ngaphansi ngesikhathi sokuhlola umphumela wokuzibamba, isidingo sokusebenzisa lesi sikhathi ukwenza phakamisa isibani esisizayo Iphutha ( IESLM-79-08 Isigaba somthetho 9.1.5). Ngokuvamile, indlela yokuhlanganisa ifanele izibani ze-LED ezihlanganisiwe ezincane kanye nemithombo yokukhanya ye-LED emincane. Ukusebenzisa indlela yokuhlanganisa ukuhlola amalambu anjalo e-LED kungaqinisekisa ukunemba nokuzinza kwemiphumela ephelele ye-flux ekhanyayo, isibonelo, lapho kuhlolwa izibani ze-LED ezinosayizi omkhulu. , Umkhawulo wendlela ehlanganisiwe mkhulu kakhulu. Isizathu siwukuthi, njengoba kushiwo ngenhla, futhi ukuhlolwa kokugcina kokukhanya okukhanyayo kunezinga elithile lokungaqiniseki.
Ukusetshenziswa kokuhlolwa kwe-spectrophotometric Ingqikithi yokukhanya ekhanyayo esabalaliswa nge-photometer, isamba sokuhlolwa kwe-flux ekhanyayo akuvamile ukuba sibe nemikhawulo. I-Photometric Test inani eliphelele le-flux ekhanyayo eliyinhloko lomthombo wokukhanya wokulinganisa i-photometer lisatshalaliswa ngezindlela eziningi ezahlukene zomthombo wokukhanya (noma ukukhanya ebangeni elinikeziwe ukusuka kumthombo wokukhanya) wokukhanya kokukhanya kwedivayisi, idatha yamandla okukhanya ohlangothini ngalunye. Ukubala ukuguquguquka okukhanyayo okuphelele. Uma kuqhathaniswa nendlela esemqoka, ngenxa yomehluko wokusatshalaliswa kokuqina komthombo wokukhanya wokuhlola, indlela ye-photometric ayinawo amaphutha emcabangweni, ngakho iyindlela yokuhlola ephelele yengqikithi yokuguquguquka okukhanyayo kwe-LED. Ayidingi inani eliphelele lezinga elikhanyayo, kodwa ithatha isikhathi eside ngesampula ngayinye—isikhathi sokulinganisa. Ukwamukela indlela ye-photometric, ukuhlolwa kwe-Goniophotometer kuzobandakanya Uhlobo C Goniophotometer (IES-LM-79-08 Isigaba somthetho 9.3.1, CIE121: 1996 Isigaba 3.2) darkroom, ibanga lokuhlola (IES-LM-79-08 Isigaba somthetho 9.3, CIE121: 1996) Isigaba somthetho 6.2.1.4), Njalo njalo. Izici eziyinhloko ezithinta umehluko wengqikithi yokuphuma kwe-flux ekhanyayo ye-goniophotometer wuhlobo lwe-goniophotometer, indlela yokuhlola (CIE121: 1996 Isigaba somthetho 3.4.2, Isigaba somthetho 3.4.1 kanye neSigatshana 3.4.3), ibanga lokuhlola, i amalambu e-photometric probe, Njll., ngokusho Ukuhlola izinhlobo ezahlukene zemikhiqizo ye-LED, singalungisa izindlela zokuhlola ezifanele noma okokusebenza; uma sihlangabezana nemikhiqizo ye-LED ene-engeli ye-engeli ewumngcingo, singakhetha i-Goniophotometer yosayizi omncane, sikhethe Uhlobo C lwe-Goniophotometer, silungise ibanga lokuhlola, futhi sikhethe izinga eliphezulu lamaprobe ezithombe ze-Class L angafinyelela ukuhlolwa okunembayo okuphezulu kokuguquguquka okukhanyayo okuphelele. Ekuhloleni ukugeleza okukhanyayo okuphelele kwe-LED, ukuhlolwa kwe-photometric kungafinyelela isilinganiso esiphezulu sokunemba. Ngenxa yemikhawulo engokwemvelo yendlela yokuhlanganisa, kunzima ukuqeda iphutha ngokulungiswa kwemishini, futhi kunganciphisa leli phutha kuphela. Ngesikhathi esifanayo, ukuhlolwa kwe-photometric Imishini edingekayo ngokwayo ayinqunyelwe kakhulu, ngakho-ke iphutha linganxeshezelwa ngokuthuthukisa ukuguquguquka nokusebenza kwemishini.
Njengoba kuchaziwe ngenhla, enye yezindlela ezilula zokulinganisa ukukhanya kwe-LED ukusebenzisa i-photometer eyindilinga eyindilinga. Kuyi-spatial flux ebonakalayo edidiyelwe amathuluzi okusetha. Ukusebenzisa i-distali ye-photometer engaguquki ukukala isamba sokulinganisa ubungako kuyashesha futhi kulula. Sebenzisa isamba sezinga elikhanyayo lokuguquguquka ukuze ulinganise i-photometer ye-sphere ehlanganisayo. Umthombo wokukhanya wokuhlola ulinganiswa ngokuqhathanisa nomthombo wokukhanya ojwayelekile onokusatshalaliswa kwendawo nokubukeka okufanayo. Ngakho-ke, le ndlela idinga umthombo wokukhanya ojwayelekile olinganiselwe ukugeleza okukhanyayo. Uma kuqhathaniswa nomhloli wokusabalalisa ukukhanya, isivinini sokuhlola sishesha kakhulu, kodwa lapho ukusatshalaliswa kokuqina kwendawo kwe-LED yokuhlola, nomthombo wokukhanya ojwayelekile akufani, kulula ukukhiqiza amaphutha. Lolu hlobo lwephutha kunzima ukulilungisa, ngakho-ke kufanele kube ngokusebenzisa i-geometry yokuklama enhle kakhulu nezinhlobo ezifanayo zama-LED ajwayelekile ukuze kuncishiswe leli phutha.
Njengoba kushiwo ngaphambili, uma ukwakheka kwesimo sokuhlola sisondela eduze komthombo wokukhanya, umphumela wokuhlolwa kwe-sphere uzoba nembe kakhulu. Ngakho-ke uma sidinga ukuhlola inani le-lumen lamalambu, amalambu ama-bulb, amalambu amancane e-LED, amalambu ahlanganisiwe e-LED, amashubhu, namanye amalambu ane-engeli ye-beam engaphezu kuka-180 °, singasebenzisa i-sphere ehlanganisayo ene-spectrometer ukuhlola u-4π. . Kumalambu amaphaneli amakhulu, amalambu akhanyayo, amarobhothi, namanye ane-engeli ye-beam engaphansi kuka-180°, uma ufuna ukusebenzisa i-interating sphere ukuze uhlole, udinga ukusebenzisa i-sphere ehlanganisayo enezimbobo eziseceleni zokuhlola okungu-2π noma usebenzise izibani ezisizayo. ukuze uthole usizo Ukuhlola, inqubo yokuhlola iyadina futhi ayiqiniseki. Indlela yokuhlola enembe kakhulu yalolu hlobo lwesibani ukusebenzisa i-goniophotometer enegumbi elimnyama elijwayelekile ukuze kuhlolwe. Ingathola ukukhanya okukhanyayo okunembe kakhudlwana. Kodwa-ke, lapho isikhathi sokuhlolwa nge-photometer sisatshalaliswa, umehluko endleleni yokuhlola kufanele kuqashelwe ukuthi, njengoba isibani sephaneli ngokuvamile sisetshenziswa ukuhlolwa kwe-C-γ, kumarobhothi kanye nezibani ezikhanyayo ngokuvamile ezituswa ukuhlolwa kwe-B-β; futhi idinga Okujwayelekile Igumbi elimnyama lidinga indawo yokuhlola echwepheshile kanye nezisebenzi zokuhlola ukuze zisebenze uma kuqhathaniswa nokuhlolwa kwe-sphere ehlanganisayo.
Kafushane, izimiso zokulinganisa, indawo ezungezile, nezindlela zokuhlola zokuhlanganisa i-sphere ne-goniophotometer zihlukile, futhi imiphumela yokulinganisa yakho kokubili ayinakuqhathaniswa. Singakhetha indlela efanelekile yokuhlola ngokuya ngamazinga ahlukene kanye nezidingo ezahlukene.
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