A umgca wokuskena ilensiYilensi ekhethekileyo esetyenziswa ikakhulu kwiikhamera zokuskena ngomgca. Yenza umfanekiso wokuskena okwisantya esiphezulu kumda othile. Ihluke kwiilensi zekhamera zendabuko kwaye idla ngokusetyenziswa kwintsimi yoshishino.
Yintoni umgaqo wokusebenza wokuskena umgcailensi?
Umgaqo osebenzayo welensi yokuskena umgca usekelwe ikakhulu kwi-teknoloji yokuskena umgca. Xa usebenza, ilensi yokuskena umgca iskena isampula yomphezulu womgca ngomgca kwaye iqokelele ulwazi olukhanyayo kumqolo ngamnye weepikseli ukunceda i-lens yokuskena umgca ibambe umfanekiso wesampulu iyonke endaweni yokuthatha umfanekiso wonke ngaxeshanye.
Ngokukodwa, umgaqo osebenzayo welensi yokuskena umgca unamanyathelo amaninzi:
Umfanekiso obonakalayo:Umqondiso wokukhanya wesampulu ukuba ihlolwe ibanjwe yi-line-line-line photosensitive elements kwi-line scanning lens kwaye iguqulelwe kwiimpawu zombane.
Ukuskena ngomgca ngomgca:Umgca-ngomgca we-photosensitive element uhlola ukusuka phezulu ukuya ezantsi kwisampuli ngesantya esithile, ukuguqula ulwazi olukhanyayo lomgca ngamnye ube ngumqondiso wombane.
Ukuqhubekeka koMqondiso:Emva kokucubungula, umqondiso wombane uguqulwa ube ngumqondiso wedijithali wokuvelisa umfanekiso.
Ukuthungwa komfanekiso:dibanisa kunye imiqondiso yedijithali yomqolo ngamnye ukuze ekugqibeleni wenze umfanekiso wesampulu yonke.
Umgaqo osebenzayo welensi yokuskena umgca
Zeziphi iiparamitha ekufuneka ziqwalaselwe kwiilensi zokuskena umgca?
Iiparamitha zeiilensi zokuskena umgcazinxulumene ngokusondeleyo neemfuno ezahlukeneyo kunye neemeko zesicelo. Ezi parameters zilandelayo kufuneka zigxininiswe:
Isigqibo
Isisombululo selensi yokuskena kaninzi yeyona metric yenkxalabo. Ukuphakama kwesisombululo, kuphezulu ukucaca komfanekiso, okuhambelana nenani leepikseli kwindawo yomfanekiso kunye nobukhulu besici somfanekiso.
Umngxuma wokuvula
Ubungakanani bendawo yokuvula bulawula ubungakanani bokukhanya okungena kwilensi, okuchaphazela ukuqaqamba komfanekiso welensi kunye nexesha lokuvezwa kwefilimu. Imbobo enkulu inokuphucula umgangatho womfanekiso xa isetyenziswa kwiimeko zokukhanya okuphantsi, kodwa inokunciphisa ububanzi obunzulu.
Uluhlu lokujolisa
Uluhlu lwengqwalasela lubhekiselele kumgama onokuthi i-lens idubule. Ngokubanzi, okukhona kubanzi ngcono, kwaye kubanzi kuthetha ukuba inokudubula izinto ezininzi zobude obahlukeneyo.
Ubude bomfanekiso
Ubude bomfanekiso bubhekisa kubude bendawo yomfanekiso welensi kwicala lokuskena. Ubude bomfanekiso omkhulu bufuna isantya esikhawulezayo sokuskena, okuya kukhokelela kwisantya esiphezulu somfanekiso kunye nesantya esiphezulu sothumelo lwedatha.
Gxininisa kumgangatho womfanekiso
Iumgangatho wokulinganisa
Umgangatho womfanekiso unokulinganiswa ngeeparamitha ezifana nesisombululo secala, umlinganiselo wesignali ukuya kwingxolo, kunye nokugcwala kombala. Ngokuqhelekileyo, isisombululo esiphezulu secala, umlinganiselo wesignali ukuya kwingxolo, kunye nokuzaliswa kombala kuthetha umgangatho ophezulu womfanekiso.
Ubungakanani beLens kunye nobunzima
Ubungakanani kunye nobunzima kunokuchaphazela ukusetyenziswa kweiilensi zokuskena umgcakwezinye izicelo. Ngoko ke, ubukhulu kunye nobunzima be-lens kufuneka kuqwalaselwe ngokweemeko ezahlukeneyo zesicelo.
Iingcamango zokugqibela:
Ukuba unomdla wokuthenga iintlobo ezahlukeneyo zeelensi zokubek' esweni, ukuskena, iidrone, ikhaya elinobulumko, okanye naluphi na olunye usetyenziso, sinayo into oyifunayo. Qhagamshelana nathi namhlanje ukuze ufunde ngakumbi malunga neelensi zethu kunye nezinye izincedisi.
Ixesha lokuposa: Sep-24-2024
