Amakhamera wezimboni ayizinto ezisemqoka ezinhlelweni zombono womshini. Umsebenzi wabo obaluleke kakhulu ukuguqula amasiginali we-Optical abe ku-ORWAST WELKICAL SINGICALS amakhamera amancane aphezulu ezimboni.
Ezinhlelweni zombono womshini, i-lens yekhamera yezimboni ilingana neso lomuntu, futhi umsebenzi wayo oyinhloko ukugxila esithombeni sethagethi se-optical of the photos sensor (ikhamera yezimboni).
Yonke imininingwane yezithombe ecutshungulwe uhlelo lokubuka ingatholakala kwilensi yekhamera yezimboni. Izinga leIlensi yekhamera yezimboniuzothinta ngqo ukusebenza okuphelele kohlelo lokubuka.
Njengohlobo lwemishini yokucabanga, amalensi wekhamera yezimboni ngokuvamile akha uhlelo oluphelele lokutholwa kwesithombe ngokunikezwa kwamandla, ikhamera, njll. Ngakho-ke, ukukhethwa kwamalensi wekhamera yezimboni kulawulwa yizidingo zohlelo lonke. Ngokuvamile, kungahlaziywa futhi kubhekwe ngezinto ezilandelayo:
1.Wavedth kanye ne-lens zoom noma cha
Kulula ukuqinisekisa ukuthi ngabe ilensi yekhamera yezimboni idinga ilensi yokusondeza noma ilensi egxile engaguquki. Okokuqala, kuyadingeka ukuthola ukuthi ngabe i-wavelength esebenzayo ye-lens yekhamera yezimboni igxilwe yini. Ngesikhathi senqubo yokucabanga, uma ukukhuliswa kudinga ukushintshwa, kufanele kusetshenziswe ilensi yokusondeza, uma kungenjalo ilensi egxile engaguquki yanele.
Maqondana ne-wavelength esebenzayo yeAma-lens wekhamera embonini, i-light band ebonakalayo yiyona evame kakhulu, futhi kukhona izinhlelo zokusebenza kwamanye amabhendi. Ingabe izindlela ezengeziwe zokuhlunga ziyadingeka? Ingabe kungukukhanya kwe-monochromatic noma polychromatic? Ingabe ithonya lokukhanya okudukayo lingavikeleka ngempumelelo? Kuyadingeka ukuthi uhlole kahle izinkinga ezingenhla ngaphambi kokuthola amandla okusebenza kwelensi.
Khetha ama-lens wekhamera yezimboni
2.Okubaluleke kakhulu kunikezwa izicelo ezikhethekile
Ngokuya ngohlelo lokusebenza langempela, kungahle kube nezidingo ezikhethekile. Kumele kuqinisekiswe izidingo ezikhethekile kuqala, ngokwesibonelo, noma ngabe kukhona umsebenzi wokulinganisa, uma kudingeka ilensi yokulinganisa i-telecentric, ukuthi ngabe ukujula kokugxila kwesithombe kukhulu kakhulu, njll. Ukujula kokugxilwe kuvame ukungathathwa ngokungathi sína, kepha noma yiluphi uhlelo lokucubungula isithombe kumele kubhekwe.
3.Ukusebenza ibanga nobude obugxile
Ubude bokusebenza nobude obugxile kuvame ukubhekwana ndawonye. Umqondo ojwayelekile ukuqala ukunquma ukulungiswa kwesistimu, bese uqonda ukunyuswa ngokuhlanganiswa nosayizi we-CCD Pixel, bese uqonda ibanga lento ye-Pixel, bese uqonda ibanga elingenzeka le-Image lihlanganisa izingqinamba zesakhiwo sendawo, ukuze uphinde ulinganise ubude bendawo I-Lens Yekhamera Yezimboni.
Ngakho-ke, ubude obugxile belensi yekhamera yezimboni buhlobene nebanga elisebenzayo lelensi yekhamera yezimboni kanye nokuxazululwa kwekhamera (kanye nosayizi we-PIXEL).
Izinto okufanele zicatshangelwe lapho ukhetha ama-lens wekhamera yezimboni
4.Usayizi wesithombe nekhwalithi yesithombe
Usayizi wesithombe weIlensi yekhamera yezimboniUkukhethwa kufanele kuhambisane nosayizi ongaphezulu wekhamera yezimboni, kanye nomgomo we- "mgomo wokuthola okuncane" kufanele kulandelwe, okungukuthi, indawo ebonakalayo yekhamera ayikwazi ukwedlula usayizi wesithombe okhonjiswe yilensi, ngaphandle kwalokho Ikhwalithi yesithombe yensimu yokubuka ayinakuqinisekiswa.
Izidingo zekhwalithi yokucabanga zincike kakhulu ku-MTF nokuhlanekezela. Ku-Izicelo Zokulinganisa, Ukuhlanekezela kufanele kunikezwe okuphezulu.
5.I-aperture ne-lens ntaba
Ukuhlobisa ama-lens wekhamera yezimboni ikakhulukazi ngokukhanya kwendawo yokucabanga, kepha ngombono womshini wamanje, ukugqama kwesithombe sokugcina kunqunywa ngezinto eziningi ezinjengokuhlasela, izinhlayiya zekhamera, isikhathi sokuhlanganisa, ukuze Thola ukugqama kwesithombe okudingekayo, izinyathelo eziningi zokulungiswa zidingeka.
Inyuka lelensi lekhamera yezimboni libhekisa esibonelweni esibekiwe phakathi kwelensi nekhamera, futhi okubili kufanele kufane. Lapho nje bobabili bengafani, ukushintshwa kufanele kubhekwe.
Izici okufanele zicatshangelwe lapho ukhetha ama-lens wekhamera yezezimboni
6.Izindleko nokuvuthwa kobuchwepheshe
Uma ngemuva kokucatshangelwa okuphelele kwalezi zinto ezingenhla, kunezisombululo eziningi ezihlangabezana nezidingo, ungabheka izindleko eziphelele nokuvuthwa kwezobuchwepheshe, futhi ubeke kuqala kubo.
I-PS: Isibonelo sokukhethwa kwelensi
Ngezansi sinikeza isibonelo sendlela yokukhetha ilensi yekhamera yezimboni. Isibonelo, uhlelo lokubona lomshini lokutholwa kwezinhlamvu zemali ludinga ukufakwa ngeIlensi yekhamera yezimboni. Izingqinamba ezaziwayo yilezi: Ikhamera ye-Industrial Camera CCD ngamasentimitha angama-2/3 ngu-4.65μm, i-C-Mount, i-Porser, ibanga elisebenzayo likhulu kune-0.05mm, futhi umthombo wokukhanya uyi-LED emhlophe umthombo wokukhanya.
Ukuhlaziywa okuyisisekelo kokukhetha ama-lens kungokulandelayo:
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(2) Ukuhlolwa kwezimboni, umsebenzi wokulinganisa uyadingeka, ngakho-ke amalensi akhethiwe ayadingeka ukuze abe nokuhlanekezela okuphansi.
(3) Ubude obusebenzayo nobude obugxile:
Ukukhuliswa kwesithombe: m = 4.65 / (0.05 x 1000) = 0.093
Ubude obugxile: f = l * m / (m + 1) = 200 * 0.093 / 1.093 = 17mm
Uma ibanga lenhloso liyadingeka ukuba libe likhulu kune-200mm, ubude obugxile kumalensi akhethiwe kufanele bube bukhulu kune-17mm.
(4) Usayizi wesithombe wamalensi akhethiwe akufanele ube mancane kunefomethi ye-CCD, okungukuthi, okungenani i-2/3 inch.
(5) I-Lens Mount iyadingeka ukuba yi-C-Mount ukuze isetshenziswe ngamakhamera wezimboni. Akunasidingo sokuthambisa okwamanje.
Ngokuhlaziywa nokubalwa kwalezi zinto ezingenhla, singathola "uhlaka" lokuqala "lwama-lens wekhamera yezimboni: ubude obugxile, uhla olubonakalayo lokukhanya, i-C-inch CCD okungenani usayizi we-pixel, kanye nokuhlanekezela isithombe esincane. Ngokusekelwe kulezi zidingo, ukukhethwa okwengeziwe kungenziwa. Uma ama-lens ambalwa angahlangabezana nalezi zidingo, kunconyelwa ukwenza ngcono futhi ukhethe ilensi enhle kakhulu.
Imicabango yokugcina:
UChuangan wenze ukwakheka kokuqala nokukhiqizwa kweamalensi wezimboni, ezisetshenziswa kuzo zonke izici zezicelo zezimboni. Uma unesifiso noma unezidingo zamalensi wezimboni, sicela uxhumane nathi ngokushesha okukhulu.
Isikhathi Seposi: Jan-21-2025
