Njengecandelo eliphambili lenkqubo yomatshini womatshini, iikhamera zeshishini zihlala zifakwe kumgca wendibano yomatshini ukuze ithathe indawo yeliso lomntu ukuze isebenze nomgwebo. Ke ngoko, ukukhetha ilensi yekhamera efanelekileyo yinxalenye engenakuphikiswa yenkqubo yomatshini womatshini womatshini.
Ke, kufuneka sikhethe njani ifanelekileI-lens yekhamera yezamashishini? Yeyiphi imiba efanele iqwalaselwe xa ukhetha i-lens yekhamera yemveliso? Makhe siqwalasele kunye.
1.Ukuqwalaselwa okusisiseko ngokukhetha iileyili zekhamera yezamashishini
①Khetha i-CCD okanye ikhamera yeCMOs ngokwezicelo ezahlukeneyo
I-CCD yekhamera yeKhamera yeCCD isetyenziselwa ukuthunyelwa kwemifanekiso yezinto ezishukumisayo. Ewe, ngokuphuhliswa kwetekhnoloji ye-CMOS, iikhamera ze-CMOs zeshishini zikwasetyenziswa koomatshini abaninzi be-chip. Iikhamera ze-CCD ze-CCD zisetyenziswa ngokubanzi ebaleni lokuhlolwa okuzenzekelayo. Iikhamera ze-CMO ze-CMOS zisetyenziswa ngokubanzi ngenxa yeendleko zabo eziphantsi kunye nokusetyenziswa kwamandla okuphantsi.
Iikhamera zeshishini zisetyenziswa kwimigca yemveliso
②Ukusonjululwa kweeLeyile zeKhamera yeMveliso
Okokuqala, isisombululo sonyulwa ngokujonga ukuchaneka kwento ebonwa okanye elinganiswe. Ukuba i-pixel yekhamera ye-pixel = ibala lezinto ezikhohlakeleyo zembono / ikhamera-yekhamera-yekhamera, emva koko isisombululo sendlela yokusondela kwikhamera = intsimi enye yendawo yokujonga ubungakanani bombhalo / ukuchaneka kwembono.
Ukuba intsimi enye yembono i-5mm kunye nokuchaneka kwethiyori yi-0.02mm, isisombululo sendlela enye yi-5 / 0.02 = 250. Nangona kunjalo, ukwenzela ukwandisa uzinzo lwenkqubo, akunakwenzeka ukuba ihambelane nexabiso lokulinganisa / lokujonga ukujongwa kwexabiso le-pixel enye. Ngokubanzi, ngaphezulu kwe-4 inokukhethiwe, ke ikhamera ifuna isisombululo esinye se-1000 kunye ne-1.3 yezigidi.
Okwesibini, ethathela ingqalelo imveliso yeekhamera zeshishini, isisombululo esiphezulu siluncedo ekuqwalaselweni okanye uhlalutyo kunye nokwamkelwa kwesoftware. Ukuba yi-VGA okanye i-USB ikhuphe, kufanele ukuba iqwalaselwe ngeliso, ke ukusonjululwa kweliso kufuneka kuthathelwe ingqalelo. Nokuba isisombululo se-Technology seTekhnoloji yoMsebenziI-lensed yekhamera yezamashishini, ayiyi kwenza kwaphela ukuba isisombululo somngcipheko ayonelanga. Isisombululo esiphezulu seekhamera zeshishini sikwanceda ukuba usebenzisa amakhadi eememori okanye ukuthatha imifanekiso.
③Isakhelo sekhamerainqanabaye-lens yekhamera yezamashishini
Xa into elinganiswayo iyashukuma, ilekhara yekhamera yemveliso enenqanaba eliphezulu lesakhelo kufuneka likhethiwe. Kodwa ngokubanzi ithetha, ukuphakamisa isisombululo, ezantsi kweqondo lezakhelo.
④Ukutshatisa iilensi zemizi-mveliso
Ubungakanani be-chip ye-chip kufuneka bube mncinci kune okanye bulingana nobungakanani beelensi, kwaye i-C okanye intaba ye-CS kufuneka ihambelane.
2.EnyecI-Onsiders yecUkunyusa irightcAmerali-is
①C-intaba okanye intaba ye-cs
Umgama ongumgama we-C-Mound yi-17,5mm, kunye nomgama we-CS-Mount ye-CS-Mount 140mm. Unokugxila kuphela xa ukhetha isinxibelelanisi sobuso.
Umahluko phakathi kweendawo ezahlukeneyo zokunxibelelana
②Ubungakanani besixhobo esiyifoto
Ye-2/3-intshi ye-intshi i-chip, kuya kufuneka ukhethe iI-lens yekhamera yezamashishiniIhambelana ne-coil ebonakalayo. Ukuba ukhetha i-1/3 okanye i-1/1 intshi, kuya kuvela ikona enkulu emnyama.
③Khetha ubude obugxile
Oko kukuthi, khetha ilensi yemizi-mveliso enendawo yokujonga inkulu kancinci kunoluhlu lokujonga.
④Ubunzulu bentsimi kunye nendawo ekhanyisayo kufuneka ilingane
Kwiindawo ezinokukhanya okwaneleyo okanye ukukhanya okuqaqambileyo, unokukhetha i-aniserture encinci yokwandisa ubunzulu bentsimi kwaye ke kuphucule ukucaciswa; Kwiindawo ezinokukhanya okwaneleyo, unokukhetha i-aperture enkulu kancinane, okanye ukhethe i-chip yokufota enemvakalelo ephezulu.
Ukongeza, ukwenzela ukukhetha iLensi yeKhamera ye-Metha yeSebe eliMbewu, kuya kufuneka unikele ingqalelo kwezinye iindlela ezithandwayo. Umzekelo, oonzwa lomfanekiso baye baqhuba inkqubela phambili kwiminyaka edlulileyo, kunye nemeko ukuya kwi-pixel engakumbi yokuphucula isisombululo seI-lensed yekhamera yezamashishini, kunye nemvakalelo ephezulu (i-backlit yomfanekiso). Ngaphaya koko, itekhnoloji ye-CCD iye yasebenza ngakumbi kwaye ngoku izalisa imisebenzi emininzi kunye nezinye iinzwa zetekhnoloji ye-CMOs.
Iingcinga zokugqibela:
I-Chuangan iqhube uyilo lwangaphambili kunye nemveliso yeelebhu zekhamera yezamashishini, ezisetyenziswa kuwo onke amabakala kwizicelo zemveliso. Ukuba unomdla okanye uneimfuno ze-lensed yekhamera yezamashishini, nceda unxibelelane nathi ngokukhawuleza.
Ixesha leposi: UNV-19 ukuya ku-2004
