Iindaba
0102030405
Isalathiso sokunikezela ngombala (CRI) semigca ye-LED
2024-09-13 14:33:34
Isalathisi sombala (CRI) yiparameter esetyenziswa ngokuqhelekileyo kwinkalo yobuchwepheshe bokukhanyisa. Ibhekisela kumlinganiselo womlinganiselo umbala wento ohambelana ngayo xa ukhanyiswa ngulo mthombo wokukhanya naxa ukhanyiswa ngumthombo wokukhanya oqhelekileyo (ngokuqhelekileyo usebenzisa ukukhanya kwelanga njengomthombo wokukhanya oqhelekileyo), oko kukuthi, indlela ngokwenyani umbala.
Inkcazo ye-1.CRI
Kubasebenzi bokukhanyisa, isalathisi sombala (CRI) ligama elisetyenziswa ngokuqhelekileyo. Sihlala sibona ixabiso le-CRI kwidatha yemithombo yokukhanya, kwaye siyazi ukuba ibonisa umgangatho womthombo wokukhanya ngokubhekiselele kunikezelo lombala.
Kodwa lithetha ukuthini ngokwenene? Ixabiso le-CRI linceda ukugqiba ukuba yintoni umthombo wokukhanya omele usetyenziswe kwisixhobo sokukhanyisa. Ixabiso le-CRI liphezulu, lingcono, kodwa ngaba abantu bayazi ukuba lilinganisa ntoni kwaye lilinganisa njani? Umzekelo, ixabiso le-CRI le-OLIGHT S1MINI yi-90. Loluphi ulwazi oludlulisela oku? Umgangatho wokukhanyisa wemyuziyam kufuneka ube ngaphezu kwe-CRI 95. Ngoba?
Ukuyibeka ngokulula: unikezelo lombala ngumba obalulekileyo wokuvavanya umgangatho wokukhanya, kwaye isalathiso sokubonisa umbala yindlela ebalulekileyo yokuvavanya unikezelo lombala wemithombo yokukhanya. Yiparameter ebalulekileyo yokulinganisa iimpawu zombala wemithombo yokukhanya eyenziweyo. Okukhona uphezulu isalathiso sombala wonikezelo, kokukhona unikezelo lombala lomthombo wokukhanya. Umbala ungcono, unamandla amandla okubuyisela umbala wento.
I-International Commission on Illumination (CIE) ichaza unikezelo lombala ngolu hlobo: isiphumo somthombo wokukhanya kwinkangeleko yombala wento xa kuthelekiswa nomthombo wokukhanya wereferensi eqhelekileyo.
Ngamanye amazwi, i-CRI yindlela yokulinganisa yokuqonda umbala womthombo wokukhanya xa kuthelekiswa nomthombo wokukhanya oqhelekileyo (ofana nokukhanya kwemini). I-CRI yimetric eyaziwayo jikelele kwaye ikuphela kwendlela yokuvavanya kunye nokuxela unikezelo lombala womthombo wokukhanya. indlela.
Ukusekwa komgangatho we-metric ye-CRI akukho kude. Injongo yantlandlolo yokuseka lo mgangatho yayikukuwusebenzisa ukuchaza iimpawu zokubonisa umbala wezibane ze-fluorescent ezazisetyenziswa kakhulu ngeminyaka yoo-1960, kunye nokunceda abasebenzisi baqonde ukuba izibane ze-fluorescent ezinokuhanjiswa kwembonakalo yomgca zingasetyenziswa kweziphi izihlandlo.
Iteknoloji ye-2.CRI
Nangona ezi zitshixo zombala zicaciswe ngononophelo kwaye izinto zokwenyani zinokuvelisa imibala yezi zitshixo, kubalulekile ukuqonda ukuba amaxabiso e-CRI athathwe ngokupheleleyo ngokubala kwaye awakhanyisi umbala wokwenyani ngomthombo wokukhanya wokwenyani.
Into ekufuneka siyenzile kukusebenzisa i-spectrum yomthombo wokukhanya olinganisiweyo ukuthelekisa kunye ne-spectrum yesampuli yombala echaziweyo, kwaye emva koko sifumane kwaye sibale ixabiso le-CRI ngohlalutyo lwemathematika.
Ngoko ke, umlinganiselo wexabiso le-CRI ubuninzi kunye nenjongo. Ayisiyondlela yokulinganisa i-subjective (umlinganiselo oyintloko uxhomekeke kuphela kumkhi-mkhanyo oqeqeshiweyo ukuba agwebe ukuba ngowuphi umthombo wokukhanya onokunikezela ngombala ongcono).
Uthelekiso olusekwe kumbono wombala lukwanenjongo, ngaphandle kokuba iqondo lobushushu lombala wemithombo yokukhanya elinganisiweyo kunye nomthombo wokukhanya wereferensi kufuneka ifane.
Umzekelo, ukuzama ukuthelekisa imbonakalo yombala ofanayo we-swatches okhanyiswa ngumthombo wokukhanya omhlophe ofudumele kunye nobushushu bombala we-2900K kunye nomthombo wokukhanya omhlophe opholileyo (ukukhanya kwemini) kunye nobushushu bombala we-5600K yinkcitho epheleleyo yexesha.
Kufuneka zijongeke ngokwahlukileyo, ngoko ke iqondo lobushushu elihambelanayo lombala (CCT) lomthombo wokukhanya olinganisiweyo libalwa kwi-spectrum yomthombo wokukhanya. Nje ukuba unale qondo lobushushu lombala, omnye umthombo wokukhanya wereferensi wobushushu obufanayo wombala unokwenziwa ngokwemathematika.
Kumthombo wokukhanya olinganisiweyo onobushushu obunombala ongaphantsi kwe-5000K, umthombo wokukhanya wereferensi yiradiyetha emnyama (Planck), kunye nomthombo wokukhanya olinganisiweyo onobushushu bombala obungaphezulu kwe-5000K, umthombo wokukhanya wereferensi ngumgangatho weCIE okhanyayo D.
Ukhetho lunokudibanisa i-spectrum yomthombo wokukhanya kwereferensi kunye nesampuli yombala ngamnye ukuvelisa uluhlu lwamanqaku okulungelelanisa umbala wereferensi (amanqaku ombala omfutshane).
Kukwanjalo nangomthombo wokukhanya phantsi kovavanyo. I-spectrum yomthombo wokukhanya phantsi kovavanyo idityaniswe nesampuli yombala ngamnye ukufumana enye isethi yamanqaku ombala. Ukuba indawo yombala ephantsi komthombo wokukhanya olinganisiweyo ihambelana ngqo nendawo yombala phantsi komthombo wokukhanya wereferensi, siqwalasela iimpawu zabo zokubonisa umbala ukuba zifane kwaye zisete ixabiso labo le-CRI ukuya kwi-100.
Kwitshathi yombala, okukhona indawo yombala ikude phantsi komthombo wokukhanya olinganisiweyo ukusuka kwindawo efanelekileyo ehambelanayo, kokukhona unikezelo lombala mbi kunye nexabiso eliphantsi le-CRI.
Bala ukufuduswa kombala we-8 izibini zeesampulu zombala ngokwahlukeneyo, uze ubale izalathisi ezi-8 zonikezelo lombala okhethekileyo (ixabiso le-CRI lomthombo wokukhanya kwisampulu ethile yombala ibizwa ngokuba yisalathiso sombala okhethekileyo), kwaye emva koko bathathe i-arithmetic yabo. ixabiso elifunyenweyo lixabiso le-CRI.
Ixabiso le-CRI le-100 lithetha ukuba akukho mmahluko wombala phakathi kwayo nayiphi na isibini seesampuli zombala kwiiperesi ezisibhozo zeesampuli zombala phantsi komthombo wokukhanya olinganisiweyo kunye nomthombo wokukhanya kwereferensi.
3.Yintoni isalathisi sombala wokukhanyisa izibane ze-LED zixhomekeke kuyo?
Isalathiso sombala wokunikezelwa kwezibane ze-LED ikakhulu sixhomekeke kumgangatho kunye nomlinganiselo weephosphors. Umgangatho kunye nomlinganiselo we-phosphors unempembelelo ebalulekileyo kwisalathiso sombala wokunikezelwa kwezibane ze-LED. Iiphosphors ezikumgangatho ophezulu zinokubonelela ngokuguquguquka kobushushu bombala obungcono kunye nokukhukuliseka kombala omncinci, ngaloo ndlela kuphuculwe isalathiso sombala. 12
Ukuqhuba kwangoku kuya kuchaphazela isalathisi sombala wokukhanya kwe-LED. Umsinga wokuqhuba omkhulu uya kubangela ukuba ubushushu bombala bukhukuliseke ukuya kumaqondo obushushu aphezulu, ngaloo ndlela kuncitshiswe isalathiso sombala.
Inkqubo yokutshatyalaliswa kobushushu be-LED nayo inefuthe elithile kwisalathiso sombala wokunikezela. Inkqubo ethembekileyo yokutshatyalaliswa kobushushu inokuqinisekisa ukusebenza okuzinzile kwezibane ze-LED kunye nokunciphisa ukukhanya kunye nokunciphisa isalathisi sombala obangelwa kukunyuka kweqondo lokushisa.
Ukuhanjiswa kwembonakalo yomthombo wokukhanya yinto ephambili ekumiseleni isalathiso sombala. Ubungakanani kunye nobukhulu bemibala eyahlukeneyo equlethwe kwi-spectrum ichaphazela ngqo isalathisi sombala. Okukhona usasazo lwe-spectral lubanzi, kokukhona isalathisi sombala siphezulu, kunye nokubonakala kombala obonakalayo.