Umahluko phakathi kwelensi ye-IR kunye nelensi eqhelekileyo
Xa i-lens eqhelekileyo isebenzisa ukukhanya kwe-infrared ebusuku, indawo ekugxilwe kuyo iya kutshintsha.Yenza umfanekiso ube luzizi kwaye kufuneka uhlengahlengiswe ukuze ucace.Ingqwalasela ye-lens ye-IR ihambelana nokukhanya kwe-infrared kunye nokubonakalayo.Kukho kwakhona iilensi zeparfocal.2. Ngenxa yokuba iya kusetyenziswa ebusuku, indawo yokuvula kufuneka ibe nkulu kuneelensi eziqhelekileyo.Imbobo ibizwa ngokuba yi-relaaty aperture, emelwe ngu-F, idla ngokuba ngu-f omkhulu, omele ubudlelwane phakathi kwedayamitha esebenzayo yelensi kunye nobude bojoliso.Ixabiso elincinci, ngcono umphumo.Ubunzima obukhulu, ixabiso eliphezulu.Ilensi ye-IR yilensi ye-infrared, esetyenziswa kakhulu ukubona ebusuku, kwaye isetyenziswa kakhulu kwiikhamera zokucupha.
Ilensi ye-IR
Emva kokuba i-lens ye-CCTV eqhelekileyo ilungiswe ngokuchanekileyo emini, ingqwalasela iya kutshintsha ebusuku, kwaye kufuneka igxininise ngokuphindaphindiweyo emini nasebusuku!I-lens ye-IR isebenzisa izinto ezikhethekileyo ze-optical, kunye ne-multi-layer coating isetyenziswe kwiyunithi nganye ye-lens ukunyusa impembelelo yokutshintsha kokukhanya kwemini nobusuku.Akukho mfuneko yokuphinda uhlengahlengise iilensi ze-IR yenye indawo ebalulekileyo yophuhliso lweemveliso zelensi ezithengwa kumazwe angaphandle kwiminyaka yakutshanje, okukuhlangabezana nemfuno yemarike yokubeka iliso kwiiyure ezingama-24.Ngobunzima obandayo bokhuseleko loluntu, abantu abafuni nje ukuba iikhamera zikwazi ukugqibezela imisebenzi yokujonga emini, kodwa nokuba babe noxanduva lomsebenzi wokhuseleko ebusuku, ke ukusetyenziswa kweekhamera zemini nobusuku kuya kuba ngakumbi nangakumbi. ethandwayo, kwaye iilensi ze-IR zingumncedi olungileyo kwiikhamera zemini nobusuku.
Okwangoku, iimveliso zekhamera zemini nobusuku zaseChina zisebenzisa izihluzi ze-infrared ukufezekisa ukuguqulwa kwemini nobusuku, oko kukuthi, vula izihlungi emini ukuvala imisebe ye-infrared ekungeneni kwiCCD, ukwenzela ukuba i-CCD ibone ukukhanya okubonakalayo kuphela;phantsi kombono wasebusuku, izihluzi ziyayeka ukusebenza , Ayisayi kuthintela imitha ye-infrared ekungeneni kwiCCD, kwaye imitha ye-infrared ingena kwi-lens ye-imaging emva kokubonakaliswa kwezinto.Kodwa ekusebenzeni, ngokuqhelekileyo kwenzeka ukuba umfanekiso ucacile emini, kodwa umfanekiso uphazamiseka phantsi kweemeko zokukhanya kwe-infrared.
Oku kungenxa yokuba ubude bamaza okukhanya okubonakalayo kunye nokukhanya kwe-infrared (ukukhanya kwe-IR) kwahlukile, kwaye i-wavelengths eyahlukileyo iya kukhokelela kwiindawo ezahlukeneyo zendiza egxininisekile yomfanekiso, okukhokelela kugxininiso lwenyani kunye nemifanekiso engabonakaliyo.Ilensi ye-IR inokulungisa ukuphambuka okungqukuva, ivumela imitha yokukhanya eyahlukileyo ukuba igxile kwindawo efanayo yenqwelomoya, ngaloo ndlela iwenza ucace umfanekiso kwaye uhlangabezane neemfuno zokubekw' esweni ebusuku.
Ixesha lokuposa: Mar-09-2023