Amalensi e-MWIR

I-Mid-wave infrared lenses (Ilensi ye-MWIRes) ziyizingxenye ezibalulekile ezisetshenziswa ezinhlelweni ezihlukahlukene ezidinga ukuthwebula izithombe ezishisayo, njengokugada, ukutholwa okuhlosiwe, nokuhlaziywa kokushisa. Lawa ma-lens asebenza endaweni ye-infrared emaphakathi negagasi ye-electromagnetic spectrum, ngokuvamile phakathi kwama-microns amathathu nama-5 (3-5um lens), futhi zenzelwe ukugxilisa imisebe ye-infrared kuhlelo lomtshina.
Amalensi e-MWIR enziwe ngezinto ezingadlulisa futhi zigxile emisebeni ye-IR ngaphakathi kwesifunda se-MWIR. Izinto ezisetshenziswa kakhulu kumalensi e-MWIR zifaka i-germanium, i-silicon, nezingilazi ze-chalcogenide. I-Germanium iyinto esetshenziswa kakhulu kumalensi e-MWIR ngenxa yenkomba yayo ephezulu ye-refractive kanye nezici ezinhle zokudlulisela ku-MWIR.
Ilensi ye-MWIR iza ngemiklamo nokucushwa okuhlukahlukene, kuye ngohlelo oluhlosiwe. Enye yemiklamo ejwayeleke kakhulu ilensi ye-plano-convex, enendawo eyodwa eyisicaba kanye ne-convex eyodwa. Le lensi kulula ukuyikhiqiza futhi isetshenziswa ezinhlelweni eziningi lapho kudingeka khona uhlelo oluyisisekelo lokuthwebula izithombe. Eminye imiklamo ihlanganisa amalensi ama-doublet, ahlanganisa amalensi amabili anezinkomba ezihlukile ze-refractive, namalensi wokusondeza, angalungisa ubude befocal ukuze usondeze ngaphakathi noma ngaphandle entweni.
Amalensi e-MWIR ayizingxenye ezibalulekile ezinhlelweni eziningi zokuthwebula ezisetshenziswa ezinhlobonhlobo zezimboni. Kwezempi, amalensi e-MWIR asetshenziswa ezinhlelweni zokugada, amasistimu okuqondisa imicibisholo, nezinhlelo zokutholwa okuqondiwe. Ezilungiselelweni zezimboni, amalensi e-MWIR asetshenziswa ekuhlaziyeni okushisayo nasezinhlelweni zokulawula ikhwalithi. Ezinhlelweni zezokwelapha, amalensi e-MWIR asetshenziswa ezithombeni ezishisayo ekuxilongeni okungahlanyisi.
Okunye okucatshangelwayo okubalulekile lapho ukhetha ilensi ye-MWIR ubude bayo bokugxila. Ubude bokugxila belensi bunquma ibanga phakathi kwelensi neqoqo lomtshina, kanye nosayizi wesithombe esikhiqizwayo. Isibonelo, ilensi enobude bokugxila obufushane izokhiqiza isithombe esikhulu, kodwa isithombe sizoba nemininingwane emincane. Ilensi enobude obude bokugxila izokhiqiza isithombe esincane, kodwa isithombe sizoba nemininingwane eminingi, njengokuthi50mm MWIR ilensi.

Okunye okucatshangelwayo okubalulekile ijubane le-lens, elinqunywa inombolo yayo engu-f. I-f-number isilinganiso sobude obugxile kububanzi belensi. Ilensi enenombolo-f ephansi izoshesha, okusho ukuthi ingakwazi ukuthatha ukukhanya okwengeziwe ngesikhathi esifushane, futhi ivame ukuncanyelwa ezimeni zokukhanya okuphansi.
Sengiphetha, amalensi e-MWIR ayingxenye ebalulekile ezinhlelweni eziningi zokuthwebula izithombe ezisetshenziswa ezinhlobonhlobo zezimboni. Aklanyelwe ukugxilisa imisebe ye-infrared ohlwini lomtshina futhi eze ngemiklamo nokucushwa okuhlukahlukene, kuye ngohlelo oluhlosiwe.