Isikhulu se-lens ray angle yi-angle phakathi kwe-axis aptical kanye nenduna yelensi. Inkosi yelensi uRay is ray edlula endaweni yokuma kwe-aperture yohlelo lokubona kanye nomugqa phakathi kwesikhungo somfundi sokungena kanye nephuzu lento. Isizathu sokuba khona kwe-cra in sensor yesithombe ukuthi kukhona i-FOV (Inkambu yokubuka) kwilensi ye-MIRCO ebusweni benzwa yesithombe, futhi inani le-CRA lincike kwinani lelensi elivundlile phakathi kwelensi encane Sensor yesithombe kanye nesikhundla se-silicon photodiode. Inhloso ukufana kangcono nelensi.
I-lens Chief Ray Angle
Ukukhetha i-cra ehambelana ne-lens & sensor yesithombe kungaqinisekisa ukuthwebula okunembile kwama-photon ku-silicon phototoodiones, ngaleyo ndlela kuncishiswe i-crosstalk ye-optical.
Ngezinzwa zezithombe ezinamaphikiseli amancane, induna ye-ray angle isiphenduke ipharamitha ebalulekile. Lokhu kungenxa yokuthi ukukhanya kufanele kudlule ekujuleni kwe-pixel ukuze kufinyelelwe i-silicon photodiode ezansi kwe-pixel, esiza ukwandisa inani lokukhanya elingena ngqo ku-silicoode I-PhotoDiode ye-pixel esondelene (ukudala i-crosstalk ye-optical crosstalk).
Ngakho-ke, lapho inzwa yesithombe ikhetha i-lens, ingabuza umenzi wesithombe somenzi wesithombe & umenzi welensi we-Cra ijika lokuqhathanisa; Ngokuvamile kunconywa ukuthi umehluko we-CRA angle umehluko phakathi kwesisu se-lens kanye nelensi elawulwa ngaphakathi +/- degrees, kunjalo, incane i-pixel, kukhuphuka.
Imiphumela ye-lens cra kanye ne-sensor cra mismatch:
Mismatch iphumela ku-crosstalk okuholela ekungalinganisweni kombala esithombeni, okuholela ekunciphiseni kwesilinganiso se-Signal-to-umsindo (SNR); Njengoba i-CCM idinga inzuzo eyengeziwe yedijithali ukuze inxephezele ukulahleka kwesiginali ku-PhotoDiode.
Imiphumela ye-lens cra kanye sensor cra mismatch
Uma i-CRA ingahambelani, kuzodala izinkinga ezinjengezithombe ezifiphele, inkungu, umehluko ophansi, imibala ephelile, futhi inciphise ukujula kwenkambu.
I-lens cra incane kune-sensor yesithombe i-CRA izokhiqiza imibala yombala.
Uma inzwa yesithombe incane kunelens cra, kuzokwenzeka umthunzi welensi.
Ngakho-ke kufanele siqale siqinisekise ukuthi umjondolo wombala awuveli, ngoba i-lens shading kulula ukuyixazulula ngokulungisa iphutha kunokuba umbala.
Inzwa yezithombe nelens cra
Kungabonakala kusuka kulokho okuphezulu kwalapho i-TTL yelensi futhi iyisihluthulelo sokuthola i-angle engela. Engeza i-TTL, enkulu i-angle ye-cra. Ngakho-ke, inzwa yesithombe enamaphikseli amancane nayo ibaluleke kakhulu ku-lens cra ukufana lapho kuklanywa uhlelo lwekhamera.
Imvamisa, i-lens cra ayihambelani kahle kahle i-snsor yesithombe ngezizathu ezahlukahlukene. Kubonwe ngokuhlola ukuthi i-lens cra curves ene-flat top (i-flip encane) ibekezelela ukwehluka kwemidlalo yemodyuli yekhamera kunama-cras agobile.
I-lens cra ayihambelani ncamashi ne-sensor yesithombe ngezizathu ezahlukahlukene
Izithombe ezingezansi zibonisa izibonelo zama-cras aphezulu agobile nama-cras agobile.
Izibonelo ze-cras ephezulu negobile
Uma i-CRA ye-lens ihluke kakhulu ku-cra yenzwa yombala, kuzovela imibala yombala njengoba kukhonjisiwe esithombeni esingezansi.
Kuvela imibala
Isikhathi sePosi: Jan-05-2023
