Umthelela Wobuhlalu Besibani Se-Infrared LED kusibonisi se-LED

Umthelela wobuhlalu besibani se-infrared LED kusibonisi se-LED 1. I-engeli yokubuka: Umbono wesibonisi se-LED unquma umbono wobuhlalu besibani se-infrared LED. Njengamanje, izikrini eziningi ezibonisa ngaphandle zisebenzisa umbono ovundlile 100 °; Ukubuka okuqondile 50 °; I-ellipse LED, isikrini sokubonisa sangaphakathi sime mpo ngo-120 °; Patch LED. Ukuboniswa emigwaqweni enguthelawayeka ngokuvamile kukhethwa kwezingu-30 ngenxa yobukhethekile bayo °I-LED eyindilinga yombono yanele. Isibonisi esakhiweni esinezitezi eziphakeme sidinga imibono ephakeme eqondile. Umbono nokukhanya kuyaphikisana, futhi umbono omkhulu uzokwehlisa nakanjani ukukhanya. Ukukhetha indlela yokubuka izinto kudinga ukunqunywa ngokwenhloso ethile. 2. Ukukhanya: Ukukhanya kwe-LED kuyisici esibalulekile esinqumayo ekukhanyeni kwesikrini sokubonisa. Uma iphezulu ukukhanya kwe-LED, kuba nkulu ibhalansi yokusebenzisa yamanje, elungele ukonga ukusetshenziswa kwamandla nokugcina i-LED izinzile. I-LED inenani elihlukile le-engeli. Ngokukhanya kwe-chip, i-engeli encane, i-LED ikhanya, kodwa iba yincane i-engeli yokubuka yesikrini esibonisiwe. Ngokuvamile, i-LED engu-100-degree kufanele ikhethwe ukuze kuqinisekiswe ukuthi isikrini sokubonisa sanele. Ukuze uthole izikhala ezihlukene kanye nokuboniswa okuhlukile kombono, iphoyinti lebhalansi kufanele litholakale ngokukhanya, i-engeli namanani. 3. Ukusebenza okukodwa: Njengoba isibonisi sombala ogcwele sakhiwe amashumi ezinkulungwane noma amakhulu ezinkulungwane zamaqembu obomvu, oluhlaza okotshani, noluhlaza okwesibhakabhaka, amaphikseli akhiwa ngamaphikseli. Ukwehluleka kwanoma yimuphi umbala we-LED kuzothinta wonke umphumela wokubonwayo wesikrini sokubonisa. Ngokuvamile, ngokwesipiliyoni sembonini, ukusebenza kahle kokulahlekelwa ngaphambi kokuba isibonisi se-LED siqale ukuqoqwa emahoreni angama-72 okuthunyelwa kufanele sibe ngaphansi kuka-3 % (kubhekisela ekuhlulekeni okubangelwa ubuhlalu besibani se-infrared LED uqobo). Ukuze siqonde ukukhanya kobuhlalu besibani se-infrared LED, okokuqala, kufanele siqonde ukuthi (i) umqondo obonakalayo, iyunithi iyi-CD. Inani lokuqina kokukhipha ukukhanya libonisa ukuhlangana komzimba okhiphayo emkhathini. Esimeni esilula, okokukhombisa ukuthi ungakanani umthombo wokukhanya “Okugqamile ”Ingqikithi Ukusebenza kobuhlalu banamuhla besibani se-infrared LED kuvame ukulinganisa lokhu kukhanya. Isibonelo, ubuhlalu besibani se-infrared LED bungu-15000mcd, 1000mcd = 1cd, okuyi-15CD. Ukukhanya kwama-LED kusetshenziswa i-MCD esikhundleni se-CD ngokuqondile ngoba ubuhlalu belambu le-LED le-infrared lakuqala linokukhanya okuphansi futhi ukukhanya kumnyama kunokukhanya. Sebenzisa ukukhanya ukuze ubonise ubuhlalu besibani se-infrared LED “ukukhanya ”Nakuba kuwumgomo, akhona futhi amaphutha. Isibonelo, ubuhlalu belambu le-LED le-infrared elilingana ncamashi nenani lokukhanya linezinga eliphezulu lokukhanya. Ngakho-ke, abathengi akufanele nje banake ukubaluleka kokukhanya lapho bethola ubuhlalu besibani se-infrared LED, kodwa futhi banake ukuqhathanisa iphuzu lokubuka. Ngaphansi kwezimo ezifanayo, isixazululo sincane, kuphakama ukukhanya kuyunithi. Kungenjalo, kungenjalo. Ngaphezu kwalokho, kunenye ipharamitha yokuqina kokukhanya kwezibani ze-infrared LED: ukukhanya okukhanyayo kobuhlalu besibani se-infrared LED (F), iyunithi i-LM, futhi sivame ukusebenzisa ama-lumens ngesiShayina. Isilinganiso sokukhanya. Ngomthombo wokukhanya, lesi silinganiso siwumniningwane omkhulu obonisa inani eliphelele lemithombo yokukhanya. Ilingana namandla okubona. Uma kukhudlwana ukugeleza kokubona komthombo wokukhanya, ukukhanya kumemezela ukukhanya nokukhanya kunamandla. Mayelana nobuhlalu besibani se-infrared LED bobulili obufanayo (ukukhanya kwemithombo yokukhanya kwethulwa kuzo zonke izinkomba kuzo zonke izinkomba), F = 4 πI. Okusho ukuthi, uma i-I yomthombo wokukhanya ingu-1cd, ukukhanya okuphelele kwe-flux 4 πLM. Uma ufuna ukugqama, asidingi nje ukuthuthukisa ukugeleza kokukhanya, kodwa futhi sandise izinga lokuhlanganisa. Eqinisweni, kuwukunciphisa indawo ekhanyayo, ukuze sithole umfutho omkhulu.