Iilensi zokuskenazisetyenziswa kakhulu kwi-AOI, ukuhlolwa kokuprinta, ukuhlolwa kwelaphu elingalukwanga, ukuhlolwa kwesikhumba, ukuhlolwa kwendlela kaloliwe, ukuhlolwa kunye nokuhlela imibala kunye neminye imboni. Eli nqaku lizisa intshayelelo kwiilensi zokuskena umgca.

Intshayelelo kwiLensi yokuSkena iMigca

1) Ingcamango yelensi yokuskena umgca:

Ilensi ye-CCD yomgca yilensi ye-FA esebenza kakhulu kwiikhamera zochungechunge lwe-sensor yomgca ezihambelana nobukhulu bomfanekiso, ubungakanani beepikseli, kwaye ingasetyenziswa kwiindlela ezahlukeneyo zokuhlola ezichanekileyo.

2) Iimpawu zelensi yokuskena umgca:

1. Yenzelwe ngokukodwa usetyenziso lokuskena olunesisombululo esiphezulu, ukuya kuthi ga kwi-12K;

2. Umphezulu ofanelekileyo womfanekiso ojolise kuwo yi-90mm, kusetyenziswa ikhamera ende yokuskena;

3. Isisombululo esiphezulu, ubungakanani bepikseli obuncinci ukuya kuthi ga kwi-5um;

4. Izinga eliphantsi lokugqwetheka;

5. Ukwandiswa kwe-0.2x-2.0x.

Izinto Omele Uziqwalasele Xa Ukhetha Ilensi Yokuskena Umgca

Kutheni sifanele siqwalasele ukhetho lweelensi xa sikhetha ikhamera? Iikhamera eziskena umgca oqhelekileyo okwangoku zine-resolutions ye-1K, 2K, 4K, 6K, 7K, 8K, kunye ne-12K, kunye nobukhulu beepikseli ze-5um, 7um, 10um, kunye ne-14um, ngoko ke ubukhulu betshiphu buqala kwi-10.240mm (1Kx10um) ukuya kwi-86.016mm (12Kx7um) ziyahluka.

Ngokucacileyo, ujongano lwe-C alunakufikelela kwiimfuno, kuba ujongano lwe-C lunokudibanisa iitships ezinobukhulu obuphezulu be-22mm, oko kukuthi i-1.3 intshi. Ujongano lweekhamera ezininzi yi-F, M42X1, M72X0.75, njl. Ii-interfaces ezahlukeneyo zelensi zihambelana nokugxila okwahlukileyo ngasemva (umgama weFlange), okumisela umgama wokusebenza kwelensi.

1) Ukwandiswa kwe-Optical(β, Ukwandiswa)

Nje ukuba isisombululo sekhamera kunye nobukhulu bepikseli bumiselwe, ubungakanani besenzi bunokubalwa; ubungakanani besenzi buhlulwe yintsimi yombono (FOV) bulingana nokukhulisa okubonakalayo. β=CCD/FOV

2) Ujongano (Faka)

Kukho ikakhulu i-C, M42x1, F, T2, Leica, M72x0.75, njl. Emva kokuqinisekisa, ungayazi ubude bomdibaniso ohambelanayo.

3) Umgama weFlange

Ujoliso lwangasemva lubhekisa kumgama ukusuka kwindawo yojongano lwekhamera ukuya kwitshiphusi. Luphawu olubaluleke kakhulu kwaye lumiselwa ngumenzi wekhamera ngokwendlela yakhe yokujonga. Iikhamera ezivela kubavelisi abahlukeneyo, nokuba zine-interface efanayo, zinokuba ne-back focus eyahlukileyo.

4) I-MTF

Ngokwandiswa kwe-optical, ujongano, kunye nokugxila ngasemva, umgama wokusebenza kunye nobude beringi edibeneyo unokubalwa. Emva kokukhetha ezi, kukho elinye ikhonkco elibalulekileyo, elikukubona ukuba ixabiso le-MTF lilungile ngokwaneleyo na? Iinjineli ezininzi ezibonakalayo aziyiqondi i-MTF, kodwa kwiilensi eziphezulu, i-MTF kufuneka isetyenziswe ukulinganisa umgangatho we-optical.

I-MTF igubungela ulwazi oluninzi olufana nomahluko, isisombululo, i-spatial frequency, i-chromatic aberration, njl.njl., kwaye ichaza umgangatho wokukhanya wembindi kunye nomphetho welensi ngokweenkcukacha ezinkulu. Ayisiyo kuphela umgama wokusebenza kunye nebala lokujonga elihlangabezana neemfuno, kodwa umahluko wemiphetho awanelanga, kodwa nokuba ukukhetha ilensi enesisombululo esiphezulu kufuneka kuqwalaselwe kwakhona.