Indlela yokulinganisa iDatha ye-LED Daquan

1. Imidiya: I-Diode yokukhanyisa (i-LED) njengomzimba ophumayo, kunye nefuthe eliphezulu le-electro -optic, umthamo omncinci, ubomi obude, i-voltage ephantsi, ukugcinwa kwamandla kunye nokukhuselwa kwendalo, njl., sisixhobo sokuqala sokukhetha kwisizukulwana esitsha sokukhanyisa. Ukukhula kwee-LED kuye kwavunywa kwitafile yelizwe, kwaye iimveliso ezintsha kunye nezobugcisa ezintsha zifakwe. Kwiminyaka yakutshanje, ipropathi ye-LED ikhulile, ukukhanya kokukhanya kuye kwaqhubeka kwanda, kwaye ukukhanya kuye kwaqhubeka kwanda. Ngoku, ii-LED zifumene ukusetyenziswa konyaka-ngonyaka wokusetyenziswa, ngakumbi ukuqhubela phambili okungapheliyo kobuchwephesha be-LED yokukhanya okumhlophe, okwenza ukuba ngokuthe ngcembe kudume kwintsimi yokukhanyisa. Ukukhula kwepropati ye-LED kuboniswe kuMfanekiso 1. 2. Umgaqo womsebenzi we-LED: I-diode yokukhanyisa (i-LED) sisixhobo esiqinileyo esinokuguqula amandla ombane abe yi-optical energy. Uyilo lwayo luqulunqwe ikakhulu ngeetshiphusi ze-PN, ii-electrode kunye neenkqubo ze-optics ezifana ne-PN chips, i-electrodes, kunye ne-optics systems. Isiseko sesiseko se-LED yinkqubo yokuguqulwa kwe-electro-light. Xa uxinzelelo olulungileyo lwe-bias lusetyenziswa kwiziphelo ezimbini ze-PN knot, ngenxa yokuba i-PN yeshumi yamandla iyancipha, intlawulo efanelekileyo yendawo ye-P iya kwahlula kwi-N. Ukwahlukana okuthe saa, kwangaxeshanye, zenza imfumba yentlawulo engalungelelananga kwiindawo ezimbini. Ngenxa yokuba i-injection ye-carrier encinci iyenzeka ngoku ingenasiphelo, i-non-balanced acupoint engenanto ifakwe kwindawo yexabiso kufuneka idibaniswe ne-electron kwindawo yesikhokelo. Ukusasazeka kwemitha, amandla amabi kakhulu ombane kunye nomqolomba, ukuphakama kwamandla efoton okwenzekayo, amandla aphezulu ayenzeka. I-energyweight yahlukile, i-frequency kunye ne-wavelength yokukhanya iyahluka, kwaye umbala wokukhanya okuphendulayo uya kwahluka. Umgaqo womsebenzi we-LED uboniswe kuMfanekiso 2. Ixabiso lemodeli yesibane sesibane se-LED 3, iiparamitha zokukhanya ze-LED 3.1 Ukukhanya okuguquguqukayo: ukukhanya okuguquguqukayo ngumlinganiselo wokukhanya okukhutshwa ngexesha lomthombo wokukhanya, oko kukuthi, amandla emitha (okanye i-radiation flux) inokosulelwa yinkqubo yombono wamehlo omntu. Isimboli se-optical flux yi φIyunithi iyahlala (LM). Ukulandela i-spectral radiation flux φ(( λ), Ukususela kule fomyula ilandelayo, ubungakanani bokukhanya okukhanyayo: φ= Km φ(( λ) GV (GV ( λ) Of λKwifomula, u-V ( λInyanga —Umbono wokukhanya okubonakalayo; km —Elona xabiso lasebusuku kakhulu lombono wokukhanya kwemitha, iyunithi yi-LM/W. Kwi-1977, ixabiso le-KM liqinisekiswe yi-International Metrology Commission ye-683LM / W ( λM = 555 nm. 3.2 Ubunzulu bokukhanya: Ubunzulu obukhanyayo bomthombo wokukhanya kwithagethi enikiweyo I yi-optical flux D. φNgaphandle kwale kona inamacala amathathu D ωIshishini, oko kukuthi,: I = Iyunithi yokukhanya okukhupha ukukhanya yiKandera (CD), 1cd = 1LM/1SR. Isixa sokukhanya kwenjongo yendawo yendawo kukuhamba kokukhanya. 3.3 Ukukhanya: Ukukhanya L kwindawo ethile kwiSishwankathelo soMthombo wokuKhanya bubushushu obukhanyayo be-DS DS kwithagethi enikiweyo. Ishishini, oko kukuthi,: L = Iyunithi yiCantra ngemitha yesikwere (CD / M2). Xa ulwandlalo lokukhutshwa kokukhanya luthe nkqo ngenjongo yokulinganisa, ngoko i-COS θ= 1. 3.4 Ukukhanya: Ukukhanya kwe-E ye-Overview yi-optical flux yesiganeko kwinqanaba lechaphaza. φUkongeza. Oko kukuthi: E = Iyunithi yi-Lx (LX), 1LX = 1LM/M2. 3.5 Ezinye iiparameters: Iiparamitha ezikhanyayo ze-LED nazo zibandakanya: i-spectrals, i-color coordinates, i-wavelengths ephambili kunye nokucoceka kombala, ukufudumeza umbala kunye nokushisa kombala ohambelanayo, ukunikezelwa kombala, isalathisi sokunikezelwa kombala, njl. 4. Ukukhanya kwe-LED -umlinganiselo wombala udinga i-4.1 Gwema umngcipheko: I-LED ihluke ekukhanyeni kwendabuko, ineempawu zomthombo wokukhanya omncinci, ukukhanya okuphezulu, ukuphuma kwe-beam emxinwa kunye nezinye iimpawu. Xa i-LED isetyenziswe kwindawo engaphantsi komhlaba, ukuba ikona yokukhanya ayilawulwa ngokungqongqo, kuya kubakho ukukhanya okunamandla. Ezinye iimveliso ze-LED ezinokukhanya okuphezulu zinokubangela umngcipheko wokukhanya kwemitha kumzimba womntu. Umlinganiselo wombala wokukhanya unokusetyenziselwa ukusetyenziswa ngokukhuselekileyo kwe-LED. 4.2 Ukukhuthaza ukukhula kwepropathi ye-LED: Umlinganiselo wombala okhanyayo we-LED unokubonelela ngeenzame ezinokubonelela ngesixa sonyaka, esinokusetyenziswa njengesikali somgangatho wemveliso ye-LED kunye nokuba ngaba okanye akunjalo. 5. Indlela yokulinganisa umbala okhanyayo we-LED 5.1 Umlinganiselo we-Flike Flike 5.1.1 indlela yamanqaku: Vavanya ukukhanya okunamandla kwe-LED kwithagethi nganye, uze ubale oku kukhanya kwexabiso Cure. 5.1.2 Indlela yeBhola yamanqaku: Iibhola ezinamanqaku, ezikwabizwa ngokuba yiLighting Ball, ziliqokobhe eligcwele ihlabathi jikelele. Faka i-white reflective layer kudonga lwangaphakathi, kwaye udonga lwangaphakathi lwebhola ludutyulwe ngokomyinge. Umthombo wokukhanya owenzeka eludongeni lwebhola ubekwe ngaphezulu ukusuka kwinqanaba lokukhanya elenzeka ngokuphindaphindiweyo ukukhanya okubonakaliswayo. Inokubonwa kumgaqo-siseko wesayensi edibeneyo. Ukukhanya kwingqukuva kuhambelana nomthombo wokukhanya womthombo wokukhanya. Bonisa. Nangona kunjalo, ngenxa yokwahluka kwesakhiwo somzimba kunye nendalo yokukhanya kwesikali (njengokufumana), iziphumo zovavanyo ziyafuneka xa ulawula umthamo womthamo. 5.1.3 2 πUvavanyo lokukhanya okuguquguqukayo kokukhanya kwekona ezintathu: Kukwakho noyilo lovavanyo (njengoko kubonisiwe kuMfanekiso 5) xa ulawula umthamo womthamo webhola yevolumu, ebizwa ngokuba luvavanyo lokukhanya kokukhanya kwangaphambili okanye 2 πI-Stereo ekhanyayo yokukhanya. Olu vavanyo eneneni ayisiyiyo yonke ukukhanya kwe-LED, kodwa abantu bahlala beyixuba kunye nokukhanya okupheleleyo kovavanyo lwe-LED. 5.2 Umlinganiselo wokukhanya kokukhanya: Uvavanyo lokukhanya kwe-LED, i-CIE-127 ibeka indawo ezimbini zokuvavanya, njengoko kuboniswe kuMfanekiso 6 kunye netheyibhile. 5.3 Ukukhanya: Uvavanyo lokukhanya kwe-LED lusetyenziswa kwinkqubo yokuvavanya ukuqaqamba kwetshiphu ye-LED kunye nokuvavanya ukhuseleko lwemitha yokukhanya ye-LED. Uvavanyo ngokubanzi lwamkela indlela yokucinga. Uvavanyo lwe-chip lunokulinganiswa nge-micro-imaging, njengoko kubonisiwe kwi-Figure 7. I-5.4 Ukulinganisa iqondo lokukhanya: Ukuthetha ngokuthe ngqo, isidanga sokukhanya asikwazi kuthathwa njengemilinganiselo ye-optical ye-LED. Ngenxa yokuba ukukhanya kweendawo zangempela kwindawo eqhelekileyo kugqitywe ngee-LED ezininzi. 5.5 Umlinganiselo wezinye iiparameters: ezinye iiparameters ezifana nolungelelaniso lombala, i-wavelengths eziphambili kunye nokucoceka kombala, ukufudumeza kombala kunye nobushushu bombala obunxulumeneyo, unikezelo lombala, kunye nesalathiso sokunikezelwa kombala sinokuguqulwa. 6. Uvavanyo kunye novavanyo lokhuseleko lwemitha yokukhanya kwe-LED: Kwiminyaka yakutshanje, ukukhanya kwemitha ye-LED kuxhalaba ngakumbi. I-Zhejiang New Year's Eve Three-color Instrument Co., Ltd. waqala uphando lovavanyo lwemitha yokukhanya eTshayina eTshayina. Embindini wokufumana umthombo wombane wesizwe. Okwangoku, imibala emithathu yeZhejiang yenze inkqubela phambili entsha kuvavanyo lwemitha yokukhanya kwee-LEDs. Ukukhanyisa uvavanyo lwe-LED lwe-PHILIPS luye lwaqhutywa, kunye nenkqubo yokuvavanya ukhuseleko lwe-radiation ye-LED kunye namalungelo epropathi yokuzimela yaseTshayina iye yafundwa. Inkqubo yokwazisa uvavanyo lokhuseleko lokukhanya kwe-LED kunye novavanyo lwaziswa ngezantsi. 6.1 Uvavanyo olumhlophe olukhanyayo lwe-LED 6.1.1 Isiseko se-LED: Ukukhanya -i-tube yangoku 0.417A, i-voltage 12V DC, amandla 5W. 6.1.2 Ubume bento kunye ne-spectrum (njengoko kubonisiwe kuMfanekiso 8) 6.2 Uvavanyo lomthombo wokukhanya ongafanelekanga wetheyibhile: Njengoko kubonisiwe kuMzobo 9, ukukhohlisa kwethu inkqubo yovavanyo lomthombo wokukhanya kwesalathisi kwavavanywa ngokukhanya okumhlophe. I-LED. 0 °(Indawo) kwaye 90 °Injongo yokujolisa 10 °Umfanekiso ofunyenwe ekudubuleni ayingomthombo wokukhanya oqaqambileyo. Kwithiyori, kufuneka siqhube uvavanyo olulula kunye nolunoxolo ngenjongo yethagethi nganye, kodwa ngokulula, eli nqaku li-0 ukuya ku-0 kuphela. 0 °Imeko-bume yenjongo ekujoliswe kuyo kukuvavanya nokuvavanya (kuba ithagethi ekujoliswe kuyo inesiphumo esinamandla), ezinye ii-engile zinokutyhalwa. 0 °Itheyibhile ekujoliswe kuyo ayikokukhanya okuqaqambileyo. 6.3 Uvavanyo lwesiseko 1: Ngokuhambelana. Umngxuma omhlophe we-LED ngu-2m ukusuka kwikhola yokukhanya, kwaye ububanzi bekhola yokukhanya yi-50mm ububanzi. Inkcazo yeziphumo zovavanyo: Udidi lwe-1 AEL lubala i-400 ukuya kwi-600nm imingcipheko yeekhemikhali ze-optical: umngcipheko we-thermal wokungacacisi i-AEL400 ukuya kwi-700nm: I-Ael engayichaziyo i-AEL700 ukuya kwi-1400nm: Ayikwazi ukucacisa isiphelo se-AEL: Ukukhanya okumhlophe kwe-LED yi-1 test premise 1 Umlinganiselo wokukhutshwa kwemitha yokukhanya okusezantsi kovavanyo lwe-AEL delineation engagqithisiyo uhlobo olu-1 lweemveliso ze-laser. 6.4 Uvavanyo olufunekayo 2 Ukukhanya okumhlophe ukukhanya kwe-LED ukukhanya-ngaphandle komngxuma yi-100m ukusuka kwikhola yokukhanya, kunye nobubanzi bekhola yokukhanya yi-7mm. Inkcazo yeziphumo zovavanyo: (1) Udidi lwe-1 AEL lubala i-400 ukuya kwi-600nm imingcipheko yeekhemikhali ze-optical AEL: Khubaza isiphelo se-AEL: Ukukhanya okumhlophe kwe-LED span 1 uhlobo lwe-laser imveliso ye-photochemical risk AEL delineation, ayiyiyo yohlobo lwe-1 yeemveliso 1 imveliso. (2) Udidi lwe-2 lwe-AEL yokubala kwe-400 ukuya kwi-700nm ye-AEL: I-Ael, engayichaziyo i-AEL700 ukuya kwi-1400nm: Akukho sigqibo se-AEL: Ukukhanya okumhlophe kwe-LED ukuvavanya isiseko sovavanyo 2 Ukuvavanya iintlobo ze-2 zeemveliso ze-laser AEL delineation delineates. 6.5 Iimfuno ezifunekayo zesidanga semitha okanye uvavanyo lwemitha: Ubume bovavanyo lwendawo yovavanyo kwinkqubo yovavanyo 2 kunye nesiseko sovavanyo lwemitha okanye uvavanyo lwemitha ayahlukanga. Ukukhanya okumhlophe kwe-LED ukukhanya okuphuma kwi-1m ye-AEL. 6.6 Isiphelo: Ngokusekelwe kwingcaciso engentla, kuyaziwa ukuba uvavanyo olumhlophe lwemveliso ye-LED luhlobo lwe-2 yemveliso ye-LED. Nangona kunjalo, kwimeko-bume ngokubanzi, ngenxa yokuba amehlo abantu anokuqhwanyaza kweliso, imbonakalo yokuphepha yendalo, ukwenzela ukuba ayiyi kubangela ingozi emehlweni abantu. Ngokwentshayelelo engentla, kunokubonwa ukuba uvavanyo kunye novavanyo lwemitha yokukhanya kwe-LED yinkqubo enzima kakhulu. Ukuchukumisa izinto ezininzi. Nangona kunjalo, uvavanyo kunye novavanyo lwe-LED ukukhanya kwemitha yoxolo ngokuthe ngcembe ibe ngumxholo onqabileyo kuvavanyo lweemveliso ze-LED. Ngokomzekelo, zonke iimveliso ze-LED ezithengiswa eYurophu kufuneka zihambelane ne-EN-60825 (elingana ne-IEC-60825) isikali. Uhlolo. Ke ngoko, kufuneka sibeke kutyalo-mali lophando kwicandelo lonyaka. 7. Ukukhanya kwe-LED -umbala wokulinganisa kunye nokuvavanya ukukhanya: Injongo yokugqibela yokukhanya kwe-LED kukufumana iziphumo ezilungileyo zokukhanya, kunye nomnyama nomhlophe wokumisela iziphumo zokukhanyisa kuxhomekeke kumlinganiselo wombala wokukhanya we-LED. 7.1 Uvavanyo lokukhanya ngalo mzuzu: Uvavanyo lokukhanyisa lwangoku lusekwe ikakhulu kwisiseko seprimary optical: ukukhanya okukhanyayo, ukuqaqamba, ukukhanya kokukhanya, kunye nesidanga sokukhanya. Uvavanyo lomthombo wokukhanya ukukhanya komphezulu wokukhanya kwemitha. Ezi ziseko ze-optical zifumaneka ngokweempawu ze-biophysical zeso lomntu, kwaye nazo ziyi-spectral light vision function V (CIE) eqatshelwe yiKhomishoni yokuKhanya yamazwe ngamazwe (CIE) λ) Iziphumo zokwanga okuhambelana nemitha zanele ukwazi ubudlelwane: iingalo ezilula ( λ) = Kmgv ( λ) Imitha yomnye λ) Kwifomula, km. —683 lm / w. 7.2 Iingxaki ezikhoyo kunye nokusilela: Indlela yebhayoloji ebonakalayo yamehlo omntu inzima kakhulu, kwaye impendulo yokuvuselela ukukhanya kwindawo eyahlukileyo nayo yahlukile. Umbono ophakathi unzima kakhulu. Isekelwe kwimpembelelo yombono wokukhanya ongentla. Njengoko kubonisiwe kwi-Figure 10, ixabiso lokuvuselela lomthombo wokukhanya okufanayo emehlweni abantu lihluke kumbono obonakalayo kunye nomnyama. Ukongeza, uvavanyo lokukhanyisa lwasekhaya lwangoku alunakuqwalaselwa ukhuseleko lwezidalwa ezibonakalayo, ezinokubangela umngcipheko wokungafani emzimbeni womntu. 7.3 Isisombululo 7.3.1 Indlela yokuvavanya kunye nesixhobo: Thatha indlela epheleleyo ye-spectral yokulinganisa ukuhanjiswa kwe-spectral ye-LEDs, kwaye usebenzise i-spectrometer yovavanyo lokuthandana. 7.3.2 Indlela yoVavanyo (1) Iziphumo zokukhanyisa: Ngokwesiseko esibonakalayo sembonakalo ehlukeneyo, umsebenzi wombono wokukhanya ohlukileyo ulinganiswe yidatha yokuhanjiswa kwe-LED spectrum, kwaye umphumo wokukhanya wokwenene womlinganiselo womthombo wokulinganisa usasazwa. phantsi kwesiseko esibonakalayo esihambelanayo. Ngokomzekelo, umsebenzi wombono wokukhanya obumnyama uthathwa ngexesha lombono oyimfihlo. Xa umbono obonakalayo ubonwa ngokubonakalayo, umsebenzi wombono wokukhanya obonakalayo uyamkelwa. (2) Ukukhanya -ukhuseleko lwebhayoloji: Ngokohlobo lomngcipheko, umsebenzi ohambelana nesiphumo esinesisindo sokusabalalisa idatha ye-spectrum ye-LED ukufumana iziphumo zomngcipheko wokwenene. Ngamafutshane, uvavanyo lwe-LED kufuneka lufaneleke. 8. Isishwankathelo kunye noZhanwang (1) Ukukhula kwepropathi ye-LED ayinakwahlulwa kwi-LED ukukhanya-umbala wokulinganisa ubuchwepheshe. Ukuze uhambelane nokukhanya kwe-LED, iteknoloji yokulinganisa umbala wokukhanya kwexesha elizayo kufuneka iphulwe. (2) Ukukhanya kwe-LED kunye nokukhanya kombala wokulinganisa kuya kuvuzwa, kwaye yonke into ikhokelwa ziimfuno zokwenene zabantu. (3) Umnqophiso wangoku: Ukuphucula uphando lwethiyori esisiseko yebhayoloji enxulumene nomzimba womntu, kunye nokuphucula intsebenziswano yamacandelo; Ngokunxulumene nemigangatho yamazwe ngamazwe, ukukhawulezisa ukuqulunqwa kunye nokuphunyezwa kwamaxwebhu aqhelekileyo, bazame konke okusemandleni abo ukungenelela kuMbutho wehlabathi owaziwayo owaziwa ngamazwe ngamazwe owaziwayo kwihlabathi jikelele nodume kwihlabathi jikelele uMbutho owaziwayo kumazwe ngamazwe; Utyalo-mali olukhulu lophando kuNyaka oMtsha, kunye nophando kunye nophuhliso lwezixhobo zokulinganisa ezinombala okhanyayo kunye nepropati ezimeleyo yengqiqo;