Ziziphi iingenelo zokuqaqamba komboniso we-LED?Njengendlela yokwazisa, izikrini zokubonisa i-LED zihlala zivela kubomi bethu, kwaye imfuno yolwazi lokuchongwa kolondolozo olunxulumene nezikrini zokubonisa ze-LED zonyukile.Makhe sixoxe ngendlela yokuchonga ukukhanya kwesiboniso se-LED.
Okokuqala, masiqonde ukuba yintoni ukukhanya kwesiboniso se-LED:
Ukukhanya ityhubhu ye-LED ekhupha ukukhanya kubhekiselele kubukhulu bokukhanya okukhutshwa ngumzimba okhanyayo, obizwa ngokuba yi-light intensity, echazwe kwi-MCD.Ukukhanya okukhanyayo komboniso we-LED yisalathisi esibanzi, esibhekiselele kwisalathiso esibanzi se-flux ekhanyayo (i-flux ekhanyayo) yazo zonke iimodyuli ze-LED ngeyunithi yeyunithi kunye nokukhanya kumgama othile.
Ukukhanya kwe-LED: Kwisalathiso esinikiweyo, ubukhulu obukhanyayo kwindawo nganye yeyunithi.Iyunithi yokuqaqamba yi-cd/m2.
Ukukhanya kuhambelana nenani le-LED kwindawo yeyunithi kunye nokukhanya kwe-LED ngokwayo.Ukukhanya kwe-LED kuhambelana ngokuthe ngqo kwi-drive yangoku, kodwa ixesha lokuphila kwayo lihambelana ngokungafaniyo nesikwere sangoku, ngoko i-drive yangoku ayinakonyuka ngokugqithisileyo ekufuneni ukukhanya.Kwindawo enye yoxinaniso, ukukhanya kwesiboniso se-LED kuxhomekeke kwizinto eziphathekayo, ukupakishwa kunye nobukhulu be-chip ye-LED esetyenzisiweyo.Okukhona itshiphu inkulu, kokukhona ikhazimla;ngokuchaseneyo, kokukhona ukukhanya kusezantsi.
Ke zithini iimfuno zokukhanya kokukhanya okujikeleze isikrini?
Iimfuno zokukhanya ngokubanzi zezi zilandelayo:
(1) Umboniso we-LED wangaphakathi: >800CD/M2
(2) Isiboniso se-LED se-semi-indoor: >2000CD/M2
(3) Umboniso we-LED wangaphandle (hlala emazantsi kwaye ujonge emantla): > 4000CD / M2
(4) Umboniso we-LED wangaphandle (hlala emantla kwaye ujonge emazantsi): > 8000CD / M2
Umgangatho weetyhubhu ezikhanyayo ze-LED ezithengiswa kwiimarike azilingani, kwaye ubuninzi bokukhanya akunakuqinisekiswa.Abathengi bakhohliswa yinto ye-shoddy.Uninzi lwabantu alukwazi ukwahlula ukuqaqamba kweetyhubhu ezikhanyayo ze-LED.Ngoko ke, abarhwebi bathi ukukhanya kuyafana nokukhanya.Kwaye kunzima ukuyihlula ngamehlo enyama, ngoko ke ungayichonga njani?
1. Indlela yokuchonga ukukhanya kwesiboniso se-LED
1. Yenza unikezelo lwamandla lwe-3V DC olulula ukuqhagamshela kwidiode ekhupha ukukhanya ngokwakho.Kungcono ukusebenzisa ibhetri ukuyenza.Ungasebenzisa iibhetri ezimbini zamaqhosha, uzibeke kwityhubhu encinci yeplastiki kwaye ukhokele iiprobe ezimbini njengeziphumo ezilungileyo nezingalunganga.Isiphelo somsila senziwa ngokuthe ngqo kwi-switch nge-shrapnel.Xa isetyenziswa, i-probes ekhangayo kunye ne-negative ihambelana ne-positive kunye ne-negative contacts of the diode-emitting diode.Kwiphini elibi, cinezela kwaye ubambe iswitshi ekupheleni, kwaye ityhubhu ekhanyayo iya kukhupha ukukhanya.
2. Okwesibini, hlanganisa i-photoresistor kunye ne-multimeter yedijithali ukwenza isixhobo esilula sokulinganisa ukukhanya.Khokela i-photoresistor ngeengcingo ezimbini ezibhityileyo kwaye uzidibanise ngokuthe ngqo kwiipeni ezimbini ze-multimeter yedijithali.I-multimeter ibekwe kwindawo ye-20K (kuxhomekeke kwi-photoresistor, Zama ukwenza ukufundwa ngokuchanekileyo ngokunokwenzeka).Qaphela ukuba ixabiso elilinganisiweyo ngokwenene lixabiso lokumelana ne-photoresistor.Ngoko ke, ukukhanya okukhanyayo, ixabiso elincinci.
3. Thatha i-LED ekhupha ukukhanya kwaye usebenzise i-3V yangoku ngokuthe ngqo ukuyilayita.Intloko ekhupha ukukhanya ijongene kwaye isondele kwi-photosensitive surface ye-photoresistor edibeneyo.Ngeli xesha, i-multimeter ifundeka ukwahlula ukukhanya kwe-LED.
2. Inqanaba localucalulo lokukhanya libhekiselele kwinqanaba lokuqaqamba komfanekiso onokuhlukaniswa ngeliso lomntu ukusuka kowona mnyama ukuya komhlophe.
Inqanaba elingwevu lesikrini sokubonisa i-LED liphezulu kakhulu, elinokufikelela kwi-256 okanye nakwi-1024. Nangona kunjalo, ngenxa yokuqonda okulinganiselweyo kwamehlo omntu ekukhanyeni, la manqanaba angwevu awakwazi ukuqatshelwa ngokupheleleyo.Ngamanye amazwi, kuyenzeka ukuba amanqanaba amaninzi akufuphi egrey scale amehlo abantu ajonge okufanayo.Ngaphezu koko, amandla okwahlula amehlo ayahluka kumntu nomntu.Kwizikrini zokubonisa i-LED, inqanaba eliphezulu lokuqatshelwa kwamehlo abantu, ngcono, kuba umfanekiso obonisiweyo kukuba abantu babone emva kwayo yonke into.Okukhona imigangatho yokuqaqamba ngakumbi iliso lomntu elinokwahlula, kokukhona likhulu isithuba sombala wesiboniso se-LED, kwaye kokukhona sikhulu amandla okubonisa imibala etyebileyo.Inqanaba localulo lokuqaqamba linokuvavanywa ngesoftware ekhethekileyo.Ngokuqhelekileyo, isikrini sokubonisa sinokufikelela kwinqanaba le-20 okanye ngaphezulu, nokuba lizinga elihle.
3. Iimfuno zokukhanya kunye ne-engile yokujonga:
Ukukhanya kwesiboniso se-LED sangaphakathi kufuneka sibe ngaphezu kwe-800cd/m2, kwaye ukukhanya kombala ogcweleyo wangaphandle kufuneka kube ngaphezu kwe-1500cd/m2 ukuqinisekisa ukusebenza okuqhelekileyo kwesiboniso se-LED, kungenjalo umfanekiso obonisiweyo awuyi kucaca ngenxa yokuba ukukhanya kuphantsi kakhulu.Ukukhanya kugqitywe ikakhulu kumgangatho we-LED die.Ubungakanani be-angle yokujonga ngokuthe ngqo inquma abaphulaphuli bomboniso we-LED, ngoko ke inkulu ingcono.I-angle yokujonga ngokuyininzi inqunywe yiphakheji yokufa.