Ubude befocal ipharamitha ebalulekile elinganisa izinga lokuhlangana noma ukwehlukana kwemisebe yokukhanya kumasistimu okukhanya. Le pharamitha idlala indima ebalulekile ekunqumeni ukuthi isithombe sakhiwe kanjani kanye nekhwalithi yaleso sithombe. Lapho imisebe ehambisanayo idlula kulensi egxile kokungapheli, ihlangana endaweni egxile kuyo, echazwa njengebanga ukusuka enkabeni yokubona yelensi ukuya kuleli phuzu. Indawo okugxilwe kuyo yilapho imisebe yokukhanya ihlangana khona ngemva kokudlula ilensi, yakhe isithombe esicijile. Ukuze kuzuzwe isithombe esibukhali sento engapheli, ilensi kufanele imiswe ngokuqhubekayo ukusuka endizeni egxilile. Lokhu kulungiswa kuchaza ukuthi kungani amalensi amaningi enwebeka ngobude lapho iringi yokugxilisa ingqondo izungeziswa, okuvumela ukugxila okunembayo ezintweni ezikude.
Kumathuluzi okubona, inkambu ye-engeli yokubuka (i-FOV) ibhekisela kubude be-angular yesigcawu esibonakalayo esithathwe ilensi, ngelensi esebenza njenge-apex yale engeli. I-engeli ye-FOV ibalulekile ngoba inquma ubukhulu bendawo ebonakalayo. I-engeli ye-FOV enkulu iphumela endimeni ebanzi yokubuka, ethwebula indawo eningi ezungezile kodwa ngokukhuliswa okuphansi. Ngokuphambene, uma into eqondiwe idlula le engeli, ngeke ingene ngokugcwele endaweni yokubuka ilensi, okuholela ezithombeni ezingaphelele noma ezihlanekezelwe. Isibonelo, ekuthwebuleni izithombe zezilwane zasendle, i-FOV ewumngcingo ingaholela ekulahlekeni kwezingxenye zesilwane noma indawo yaso, kuyilapho i-FOV ebanzi ingase ithwebule imininingwane eminingi yangemuva, yehlise ukuvelela kwesihloko.
Ngaphansi kwezimo ezijwayelekile, i-engeli ye-FOV nobude bokugxila kuhambisana ngokuphambene. Lobu budlelwano busho ukuthi ubude bokugxila obufushane buhambisana nama-engeli amakhulu e-FOV, kuyilapho ubude bokugxila obude buphumela kuma-engeli amancane e-FOV. Amalensi e-Telephoto, anobude bokugxila obude, alungele ukuqapha okukude nemisebenzi yokudubula edinga ukuthwebula izinto ezikude ngemininingwane ephezulu. Lawa ma-lens asetshenziswa kakhulu ezinhlelweni ezahlukahlukene ezinjengokuphepha kwedolobha, ukuphathwa kwethrafikhi, ukugadwa komngcele nokuvikela ugu, ukuthwebula izithombe zezilwane zasendle, kanye nemibhalo yemicimbi yezemidlalo. Isibonelo, amalensi e-telephoto aklanywe futhi akhiqizwa i-Jinyuan Optics, anobude obugxilile obusuka ku-30-120mm, 5-50mm, kanye no-10-50mm, angafeza lezi zidingo. Lawa ma-lens ahlinzeka ngokusebenza okuhle kakhulu ekuthwebuleni izithombe ezinemininingwane yezihloko ezikude, azenze zibe amathuluzi abalulekile ochwepheshe kule mikhakha. Ukwengeza, i-Jinyuan Optics inikezela ngamalensi amancane anobude bokugxila okude, njengemodeli engu-1/2.7" 3MP 50mm kanye no-1/1.8" 5MP 25mm, ahlanganisa umklamo ohlangene namandla wokuthwebula anamandla.
Ngokuphambene, amalensi agxile kakhulu, abuye aziwe ngokuthi amalensi e-engeli ebanzi, ahlinzeka ngenkundla ebanzi yokubuka ngenxa yama-engeli awo amakhulu e-FOV. Lesi sici sizenza zifaneleke kakhulu ukuqapha izindawo ezinkulu ezingenazo izindawo eziyimpumputhe, njengokuvikela ukuphepha ezikweleni, ezindaweni zokugcina impahla, ezikhumulweni zezindiza, naseziteshini. Amalensi ane-engeli ebanzi angathwebula izigcawu ezinwebekayo, aqinisekise ukumbozwa okuphelele kwendawo egadiwe. Ilensi yakamuva ye-Jinyuan Optoelectronics engu-1/2.5-intshi, 1.8mm ubude bokugxila okufushane ifaka inkundla ebanzi yokubuka, ukucaca kwamaphikseli aphezulu, nezici ezingangeni manzi, ezinikela ngokuhlanganyela ekusebenzeni kwayo okuphezulu. Inkambu ebanzi yokubuka ivumela ilensi ukuthi ithwebule indawo enkulu kuhlaka olulodwa, kuyilapho ukulungiswa kwephikseli ephezulu kuqinisekisa ukuthi imininingwane icacile futhi ichazwe kahle. Idizayini engangeni manzi iyenza ifanelekele ukusetshenziswa ngaphandle, ngisho nasezimweni zezulu ezinzima. Ngenxa yalokho, le lensi isetshenziswa kakhulu kuma-doorbells abonakalayo, izinhlelo zokuqapha ezokuphepha, namakhamera ezimoto, ehlinzeka ngezixazululo ezithembekile nezisezingeni eliphezulu zezithombe zezinhlelo zokusebenza ezahlukahlukene.
Kafushane, ubude be-focal ne-engeli ye-FOV amapharamitha amabili abalulekile athonya kakhulu ukusebenza kwamasistimu okubona. Ukuqonda ubudlelwano babo nokukhetha uhlobo olufanele lwamalensi olususelwe ezidingweni ezithile kungathuthukisa kakhulu ukusebenza kwezithombe nokuqapha imisebenzi kuzo zonke izimboni ezihlukahlukene. Noma ngabe ukuthwebula izinto ezikude ngemininingwane ephezulu noma ukuqapha izindawo ezinkulu ngokuphelele, ukukhetha okulungile kwamalensi kungenza umehluko ekuzuzeni imiphumela emihle.
Isikhathi sokuthumela: Dec-23-2024