Umthelela wamalensi wokucaciswa okufanayo kepha amadizayini ahlukile esithombeni
Umthelela wamalensi wokucabanga afudumele anezincazelo ezifanayo kepha amadizayini ahlukene ngekhwalithi yesithombe aboniswa ikakhulukazi umehluko ngemininingwane yokwakheka okubonakalayo. Yize ukucaciswa (njengobude obugxile, i-aperture, inkambu yokubuka, ukulungiswa, njll.) Kungase kufane, lezi zinto ezalandela ze-Design zizoholela ekweremulweni okuphawuleka emphumeleni wangempela wokucabanga:
1
Umehluko ngesakhiwo se-Optical: Inombolo, ukwakheka, kanye nokuhlelwa kwamalensi (njengokusetshenziswa kwezibuko ezi-asperical kanye nezinto ezihlukile) kuzothinta umphumela wokuhlazeka (ukuhanjiswa kwe-coma, astigmatism, njll.). Ama-lens anemiklamo eyinkimbinkimbi engancomeka kangcono ukuhlanekezela nokuhlanzeka kwe-chromatic, ngaleyo ndlela athuthukise ukuvumelana phakathi kwesikhungo namandla.
Ukuqina okushisayo: amalensi wokucabanga afudumele asetshenziswa kakhulu endaweni ebanzi yokushisa. Umehluko wokukhishwa kwemali ebanzi yezinto zokwakha ezihlukile (njenge-thranium, ingilazi ye-chalcogenide, ne-chalcogenide) kungadala ukuthi izinga lezithombe zishintsha lapho izinga lokushisa lishintsha. Ama-lens anezinkomba ezenziwe kahle azonciphisa ukudelela okushisayo ngokuqhathanisa noma ukunxeshezelwa kwemishini.
2. Ukuhlanganisa nokudlulisela
I-Anti - Ukuhlanganiswa okubonisayo: Izinqubo ezahlukahlukene zokuhlanganisa zithinta ukudluliselwa kanye nokuvinjelwa kokukhanya okulula ebhendini ye-infrared (njenge-8 - 14μm). Okuphezulu - I-Quality Coatings ingathuthukisa isinali - Ukulinganisa umsindo, ukunciphisa "izithombe zesipoki" kanye nokukhazimula, bese wenza izithombe ezicace, ikakhulukazi amalangabi kanye nemishini yokushisa).
Izici zokutholwa kwezinto ezibonakalayo: Noma ngabe imininingwane iyefana, umehluko enqubweni yokuhlanzeka noma yenqubo ye-lens impahla ingahle ibangele ukudluliselwa kwamandla athile okuncipha, okuthinta umehluko wesithombe.
3. Ukulawulwa kokukhanya nokukhanya komsindo
Ukwelashwa kwe-Aperture kanye nokwelashwa kwangaphakathi: Isikhundla kanye nokwakheka kwesimo sokuhlasela kanye nokwelashwa kwe-matte kodonga lwangaphakathi lwe-lens umgqomo (njengesakhiwo esinentambo kanye ne-black coating) kuzothinta indlela yokukhanya okudumayo. Ama-lens aklanywe kabi angadala ama-halos noma ama-artifacts azungeze phezulu - okuhlosiwe kokushisa, ukunciphisa ukulungiswa kwemininingwane.
I-Narcissus Effect: Kwamanye ama-Design, i-Detector eyami phansi - Imisebe yokushisa iboniswa emuva kumtshina owenziwe nge-lens, yakha izindawo ezimnyama. Imiklamo eyenziwe kahle yehlisa ubuciko obunjalo ngokusebenzisa i-lens curvature noma ukunamathela.
4. Isakhiwo semishini nokuqina
Ukugxila kanye ne-Zoom Mechanism: Ukunemba kokugxilwa kwe-Manual / Auto kanye nokubekwa uphawu (uthuli kanye nokumelana kwamanzi) kuthinta ukuqina kokuqina - Isibonelo, ukubekwa uphawu okumpofu kungadala ukuthi ilensi igxunyekile, yehlise ikhwalithi yesithombe endaweni enomswakama.
I-Anti - I-Vibration: Ku-Izicelo Zezimboni noma Zensimu, indlela iqembu lelensi elilungiswe ngayo lithinta i-anti - ukusebenza okudlidliza. Esikhathini eside - ukudlidliza kwesikhashana kungadala ukuthi i-axis optical iguqukele futhi iphazamise ubukhali.
5. Ukulungiswa kwangempela kanye ne-MTF Curve
Ukulungiswa okulinganiselwe okulinganiselwe kwe-vs Isibonelo, ilensi enokwehla okusheshayo kwe-MTF emaphethelweni wenkambu yokubuka izofiphaza imininingwane esemqoka lapho kudutshulwa nge-angle ebanzi.
Ukufana kwe-Detector: Ukuthi ukwakheka kwe-lens kubhekiswe emtshinini othile (njengosayizi we-pixel, ukufana kwesikrini okubandayo) kuzothinta ukulungiswa kwangempela. Imiklamo engavikelekile ingadala ukuthuthuka noma ukubekezelela ukulungiswa.
6. Ukuguqulwa kwezimo zesicelo
Vala - I-Malic Imaging: Amanye amacebo afinyelela ku-purle puleke - Ibanga eligxile (njengokuhlolwa kwezimboni), kanti amanye ahlolwe), okubukwayo kwezokuphepha), okuholela kwikhwalithi ehlukile yesithombe esiseduze noma esisezingeni eliphakeme ngaphansi kwencazelo efanayo .
Ukucutshungulwa kwebanga elinamandla: Okwe-High - Izigcawu ezinamandla (njengokuba khona kwezinga lokushisa eliphakeme kakhulu futhi eliphansi ngasikhathi sinye), ukuhambelana kwe-Vignerting noma ukuhambelana komtshina noma ukufana kwe-Detector Recoment of lens ehlukene kungathinta amandla okubuyisela izingqimba.
Iziphakamiso zokukhetha
Bheka ijika le-MTF kanye nedatha elinganisiwe
Ukuguquguquka kwemvelo
Ukuqinisekiswa kokufaneleka: Qinisekisa ukuthi usayizi we-pixel kanye nesikrini esibandayo se-F FACE se-lens maqondana naleso somtshina ukugwema ukungcola kwesinqumo noma nge-vignetting.
Ngamafuphi, imininingwane ye-design yama-lens yokucabanga okushisayo izothinta kakhulu ikhwalithi yokugcina yesithombe, ikakhulukazi ezindaweni eziyinkimbinkimbi noma ukuphakama - kanye nokukhethwa kwezicelo zokunemba, kanye nokukhethwa kudinga ukuhlanganiswa ngokucaciswa.
Izilungiselelo Zobumfihlo