Njengoko sonke sisazi, iikhamera zidlala indima ebaluleke kakhulu kwindawo yokubeka iliso kukhuseleko. Ngokubanzi, iikhamera zifakwe kwiindlela zasezidolophini, kudederhu lweevenkile nakwezinye iindawo zikawonke-wonke, iikhampasi, iinkampani kunye nezinye iindawo. Abadlali kuphela indima yokubeka iliso, kodwa bakwaluhlobo lwezixhobo zokhuseleko kwaye ngamanye amaxesha bangumthombo wemikhondo ebalulekileyo.

Kunokuthiwa iikhamera zokujonga ukhuseleko ziye zaba yinxalenye yomsebenzi kunye nobomi kuluntu lwanamhlanje.

Njengesixhobo esibalulekileyo senkqubo esweni yokhuseleko, iilensi yokucupha ukhuselekounokufumana kwaye urekhode umfanekiso wevidiyo wendawo ethile okanye indawo ngexesha lokwenyani. Ukongeza kwi-real-time monitoring, iilensi zokubeka iliso zokhuseleko nazo zinokugcinwa kwevidiyo, ukufikelela kude kunye neminye imisebenzi, esetyenziswe ngokubanzi kwiinkalo ezahlukeneyo zokhuseleko.

Iilensi zokucupha ukhuseleko

1,Ukuqulunqwa okuphambili kweelensi zokucupha ukhuseleko

1)Fubude be-ocal

Ubude belensi yokucupha ukhuseleko bumisela ubungakanani kunye nokucaca kwento ekujoliswe kuyo emfanekisweni. Ubude obufutshane obugxininisiweyo bufanelekile ukubeka iliso kuluhlu olubanzi kunye nembono ekude incinci; ubude bojoliso olude bulungele ukujongwa kumgama omde kwaye bunokwandisa ithagethi.

2)Ilensi

Njengenxalenye ebalulekileyo yelensi yokucupha ukhuseleko, i-lens isetyenziselwa ukulawula i-angle yokujonga i-angle kunye nobude obugxininisekile ukubamba izinto ezijoliswe kuzo kwimigama eyahlukeneyo kunye nemigangatho. Ukukhethwa kwelensi kufuneka kumiselwe ngokusekelwe kwiimfuno ezithile. Umzekelo, iilensi ezibanzi zisetyenziselwa ukubeka iliso kwiindawo ezinkulu, ngelixa iilensi ze-telephoto zisetyenziselwa ukubeka esweni iithagethi ezikude.

3)Uluvo Lomfanekiso

Uluvo lomfanekiso yenye yezinto eziphambili zeilensi yokucupha ukhuseleko. Inoxanduva lokuguqula imiqondiso ye-optical kwimiqondiso yombane yokuthatha imifanekiso. Kukho iindidi ezimbini eziqhelekileyo zoluvo lwemifanekiso: CCD kunye neCMOS. Okwangoku, iCMOS ngokuthe ngcembe ithatha indawo ephambili.

4)Umngxuma wokuvula

I-aperture yelensi yokucupha ukhuseleko isetyenziselwa ukulungelelanisa ubungakanani bokukhanya okungena kwilensi kunye nokulawula ukukhanya kunye nobunzulu bomfanekiso. Ukuvula i-aperture ububanzi kunokunyusa umthamo wokungena kokukhanya, okufanelekileyo ukubeka iliso kwiindawo eziphantsi kokukhanya, ngelixa ukuvala i-aperture kunokufikelela kubunzulu obukhulu bentsimi.

5)Tindlela yokukhupha umchamo

Ezinye iilensi zokucupha ukhuseleko zinesixhobo esijikelezayo sokujinga okuthe tye kunye nokuthe nkqo kunye nokujikeleza. Oku kunokubandakanya uluhlu olubanzi lokubeka iliso kunye nokwandisa ipanorama kunye nokuguquguquka kokubeka iliso.

Ilensi yokucupha ukhuseleko

2,Uyilo olubonakalayo lweelensi zokucupha ukhuseleko

Uyilo lwamehlo lweiilensi zokucupha ukhuselekobubuchwephesha obubaluleke kakhulu, obubandakanya ubude obugxilwe, indawo yokujonga, izakhi zelensi kunye nemathiriyeli yelensi yelensi.

1)Fubude be-ocal

Kwiilensi zokucupha ukhuseleko, ubude bojoliso yiparameter engundoqo. Ukukhethwa kobude bogxininiso kugqiba ukuba kude kangakanani into enokuthi ibanjwe yi-lens. Ngokubanzi, ubude bojoliso obukhulu bunokufikelela ukukhangelwa kunye nokujongwa kwezinto ezikude, ngelixa ubude obuncinci befocal bulungele ukudutyulwa okubanzi kwaye kunokugubungela indawo enkulu yokujonga.

2)Indawo yokujonga

Intsimi yokujonga kwakhona enye yeeparameters ezibalulekileyo ekufuneka ziqwalaselwe ekuyilweni kweelensi zokucupha ukhuseleko. Indawo yokujonga imisela uluhlu oluthe tye kunye noluthe nkqo olunokuthi lubanjwe ilensi.

Ngokuqhelekileyo, iilensi zokucupha ukhuseleko kufuneka zibe nentsimi enkulu yokujonga, zikwazi ukugubungela indawo ebanzi, kwaye zinike inkalo yokujonga ebanzi ngakumbi.

3)Lens amacandelo

Indibano ye-lens ibandakanya iilensi ezininzi, kunye nemisebenzi eyahlukeneyo kunye nemiphumo ye-optical inokufezekiswa ngokulungelelanisa imilo kunye nokuma kweelensi. Uyilo lwamacandelo e-lens kufuneka luthathele ingqalelo izinto ezifana nomgangatho womfanekiso, ukuguquguquka kwiindawo ezahlukeneyo zokukhanya, kunye nokuchasana nokuphazamiseka okunokwenzeka kokusingqongileyo.

4)Ilensimizixhobo

Izinto ze-lens zikwayenye yezinto ezibalulekileyo ekufuneka ziqwalaselwe kuyilo lwe-optical.Iilensi zokucupha ukhuselekozifuna ukusetyenziswa kwezinto ezikumgangatho ophezulu, iipropathi ezibalaseleyo zamehlo kunye nokuqina. Izinto eziqhelekileyo ziquka iglasi kunye neplastiki.

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.