1.Ubungakanani bomfanekiso
Ubungakanani bomfanekiso bukwayisayizi yesikrini;
Ubungakanani bomfanekiso wesivamvo:
Qhubeka ukusebenzisa ubungakanani befomati eqhelekileyo yetyhubhu yekhamera, yisayizi yangaphandle yedayamitha yetyhubhu yekhamera.
2.Ubude bojoliso
Ingqikelelo ibhekisa kumgama ukusuka kumbindi welensi ukuya kwindawo ekugxilwe kuyo ekuqokeleleni ukukhanya.Ikwangumgama ukusuka kumbindi welensi ukuya kwinqwelomoya yomfanekiso womphezulu woluvo kwimodyuli.Ubude bojoliso bubaluleke kakhulu. idatha, kwaye iya kusetyenziswa ekubaleni ubunzulu bentsimi kunye neFOV kwixesha elizayo.
3.Imbono
Kukho iindidi ezintathu zeelensi: umgangatho, i-engile-ebanzi, kunye ne-telephoto lens.
Nangona ummandla obonwa liliso lomntu unokufikelela kwii-degrees ezili-180, i-engile enokwazi ngokwenene ukumila kunye nombala imalunga nama-50 degrees.Ewe kunjalo, kufuneka isekelwe kwiimfuno zokwenyani zabathengi;Umgaqo weSeesaw,abavelisi beLens banethemba lokuyila indawo enkulu yokujonga enokulungela abenzi boluvo abaninzi, kodwa ubukhulu bendawo yokujonga, kokukhona kukho ukuphambuka kwechromatic okufunekayo. ukoyiswa.
4.Uphambuko lwekroti
Ilensi yeefoto ayikwazi ukubuyisela ngokupheleleyo inqaku okanye umfanekiso wokukhanya odibeneyo wobude ukuya kwinqanaba, kodwa indawo edibeneyo edibeneyo;umfanekiso wento yenqwelomoya awuseyiyo inqwelomoya, kodwa ngumhlaba ogobileyo, kwaye umfanekiso ulahlekelwe ukufana.Ezi ziphene zemifanekiso zibizwa ngokuba yi-chromatic aberrations.
5.Ubunzulu beNdawo kunye nobunzulu boJoliso
(1) Ubunzulu beNdawo kunye nobunzulu boJoliso
Ngaphambi nangemva kokugxila, ukukhanya kuqalisa ukuqokelela kunye nokusabalalisa, kwaye umfanekiso wenqaku uba lufifi, wenze isangqa esandisiweyo.Esi sangqa sibizwa ngokuba sisangqa sokubhideka.
Ngokwenyani, umfanekiso othathiweyo ujongwa ngendlela ethile (njengokuqikelelwa, ukwandiswa kwifoto, njl. njl.).Umfanekiso ovakalelwa ngeso lenyama unobudlelwane obukhulu kunye nokwandiswa, umgama wokuqikelelwa kunye nomgama wokubukela.Ukuba i-diameter yesangqa sokubhideka incinci kunesakhono socalucalulo seliso lomntu, ukufiphala okuveliswe ngumfanekiso wokwenyani kuluhlu olunxulumeneyo akunakubonwa.Esi sangqa esingaziwayo sokubhideka sibizwa ngokuba sisangqa esivumelekileyo sokubhideka.
(2) ubunzulu bebala
Kukho isangqa esivumelekileyo sokubhideka phambi nasemva kwendawo ekugxilwe kuyo, kwaye umgama phakathi kwezangqa ezibini zokubhideka ubizwa ngokuba bubunzulu bojoliso.Ngaphambi nangemva kwesifundo (inqaku lokugxila), umfanekiso usenoluhlu olucacileyo, obunzulu bentsimi.Ngamanye amazwi, ubunzulu bangaphambili nasemva besifundo kunye neqondo lokufiphala komfanekiso kumphezulu wefilimu zonke zingaphakathi komda wesangqa esivumelekileyo sokubhideka.
Ubunzulu bebala buyahluka ngobude obugxile kwilensi, ixabiso lokuvula, kunye nomgama wokudubula.Kubude obugxininisiweyo obumiselweyo kunye nomgama wokudubula, okukhona umncinci umngxuma osetyenziswayo, kokukhona ubunzulu bebala.Umgaqo wothando lwe-myopic squinting.
(3) Umzekelo
Case study,CNF7246, Ilensi DS628A
IParameter,EFL=2.94mm FNO=2.0 UBULUNGU LWEPIKseli YOVAVANYO=1.75um
(4)Vcm into ethile engalunganga yogqaliselo
Ujoliso olusondeleyo olulambathayo
Xa uyila uMphathi, umqolo wokugxila kwi-lens ukusuka kude ukuya kufutshane kuya kuba phakathi koluhlu lweVCM.Ukuba umphakamo wesiBambi akwenziwanga kakuhle, isibambi kwilensi ekufutshane ekugxilwe kuyo siya kuvela, nto leyo ekhokelela ekugxininiseni kakubi.
6.Ukugqwetheka
Into ebizwa ngokuba yi-distortion ibhekisela kwiqondo apho umgca othe tye ujika ube yigophe emva kokudubula kwi-lens.Iqondo lokugqwetheka libalwa njengepesenti yotshintsho kubungakanani bomfanekiso ukuya kubungakanani obufanelekileyo bomfanekiso.Isisombululo seliso lomntu kwi-engile ngumzuzu omnye weradian, emalunga ne-1/60 ye-1 degree, kwaye ilungile. uvakalelo kukuthi tye kunye nokugoba komgca.Ngoko ke, iilensi ezininzi ze-optical imaging zixhalabile kakhulu malunga nokuphambuka kwe-angle yentsimi yokukhulisa, ngokuqhelekileyo ibekwe kwi-2%.
7.Isikhanyiso esizalanayo
Ingqikelelo, umlinganiselo wokukhanya wentsimi yembono ecaleni kwe-axis ebonakalayo ukuya kwintsimi epheleleyo yokujonga kwindiza yokucinga, oko kukuthi, umlinganiselo weekona zediagonal zesensom yomfanekiso ukuya kukhanyiso oluphakathi, eli xabiso lithintelwe yi-cos4θ. I-theorem yokukhanya, kunye neekona ziyiyunithi yendawo I-flux ekhanyayo ye-luminous flux iphantsi, kodwa ayikho phantsi kakhulu ukuba kukho i-phenomenon ye-vignetting.
Ixesha lokuposa: Oct-08-2021