Kev siv yog dab tsiscannkev uacov iav? Lub lens scanner feem ntau yog siv rau kev ntes cov duab thiab kev luam theej duab optical. Raws li ib qho ntawm cov khoom tseem ceeb ntawm lub scanner, lub lens scanner feem ntau yog lub luag haujlwm rau kev ntes cov duab thiab hloov lawv mus rau hauv cov teeb liab hluav taws xob.
Nws yog lub luag haujlwm hloov cov ntaub ntawv qub, cov duab, lossis cov ntaub ntawv mus rau hauv cov ntaub ntawv duab digital, ua rau nws yooj yim rau cov neeg siv khaws cia, kho, thiab sib qhia ntawm cov khoos phis tawj lossis lwm yam khoom siv digital.
Cov scans yog dab tsikev uacov khoom ntawm lub lens?
Lub lens scanning muaj ntau yam sib txawv, uas ua ke ua kom ntseeg tau tias kev scanning tuaj yeem ntes tau cov duab meej thiab raug:
Lub lens
Lub lens yog lub ntsiab lus tseem ceeb ntawm lub lenslub lens scanning, siv los tsom lub teeb. Los ntawm kev kho qhov chaw ntawm cov iav lossis siv cov iav sib txawv, qhov ntev ntawm lub lens thiab qhov aperture tuaj yeem hloov pauv kom ua tiav cov teebmeem tua sib txawv.
Lub lens scanning
Qhov qhib
Qhov qhib (Aperture) yog qhov qhib uas tswj tau nyob hauv nruab nrab ntawm lub lens, siv los tswj qhov ntau ntawm lub teeb nkag mus rau hauv lub lens. Kev kho qhov loj ntawm qhov qhib tuaj yeem tswj qhov tob ntawm daim teb thiab qhov ci ntawm lub teeb uas hla dhau lub lens.
Flub nplhaib tsom iav
Lub nplhaib tsom xam yog ib lub voj voog uas tig tau uas siv los kho qhov ntev ntawm lub lens. Los ntawm kev tig lub nplhaib tsom xam, lub lens tuaj yeem sib phim nrog tus neeg thiab ua kom pom tseeb.
Alub sensor tsom mus rau qhov muag
Qee lub lens scanning kuj muaj cov sensors autofocus. Cov sensors no tuaj yeem ntsuas qhov deb ntawm cov khoom uas raug thaij duab thiab kho qhov ntev ntawm lub lens kom ua tiav qhov autofocus raug.
Kev siv tshuab tiv thaiv kev co
Qee qhov kev nce qibcov tsom iav luam theej duabkuj tseem yuav muaj cov thev naus laus zis tiv thaiv kev co. Cov thev naus laus zis no txo cov duab tsis meej uas tshwm sim los ntawm kev co tes los ntawm kev siv cov khoom siv stabilizer lossis cov khoom siv kho tshuab.
Yuav ua li cas ntxuav lub scannkev ualub lens?
Kev ntxuav lub lens luam theej duab kuj yog ib txoj haujlwm tseem ceeb, thiab kev ntxuav lub lens yog ib kauj ruam tseem ceeb hauv kev tswj nws cov kev ua haujlwm thiab qhov zoo ntawm daim duab. Yuav tsum nco ntsoov tias kev ntxuav lub lens luam theej duab yuav tsum tau ua tib zoo saib xyuas kom tsis txhob muaj kev puas tsuaj rau qhov chaw ntawm lub lens. Nws yog qhov zoo tshaj plaws los ntxuav lub lens los ntawm tus kws tshaj lij lossis sab laj nrog lawv cov lus qhia.
Lub lens rau kev luam theej duab
Kev ntxuav lub lens scanning feem ntau muaj cov kauj ruam hauv qab no:
1.Cov kauj ruam npaj
1) Tua lub scanner ua ntej ntxuav. Ua ntej ntxuav, thov xyuas kom lub scanner raug kaw thiab txiav tawm ntawm lub hwj chim kom tsis txhob muaj kev phom sij ntawm lub hwj chim.
2) Xaiv cov cuab yeej ntxuav kom haum. Ua tib zoo xaiv cov cuab yeej tsim tshwj xeeb rau kev ntxuav cov iav tsom iav, xws li daim ntawv ntxuav iav, cov khoom siv rho tawm cov npuas dej, cov cwj mem iav, thiab lwm yam. Tsis txhob siv cov phuam ntawv lossis phuam so tes vim tias lawv yuav khawb qhov chaw ntawm lub iav tsom iav.
2.Siv lub tshuab ejector balloon kom tshem tawm cov plua plav thiab cov khoom tsis huv
Ua ntej, siv lub tshuab rho tawm cov hmoov av thiab cov khoom tsis huv ntawm lub lens kom maj mam tshuab cov hmoov av thiab cov khoom tsis huv tawm ntawm qhov chaw ntawm lub lens, kom ntseeg tau tias siv lub tshuab rho tawm huv si kom tsis txhob ntxiv cov hmoov av ntau dhau.
3.Ntxuav nrog daim ntawv ntxuav lens
Muab ib daim ntawv ntxuav iav me me quav los yog nkhaus me ntsis, ces maj mam txav nws maj mam rau ntawm qhov chaw ntawm lub iav, ceev faj kom tsis txhob nias los yog khawb lub iav nrog lub zog. Yog tias muaj cov xim tawv ncauj, koj tuaj yeem tso ib lossis ob tee dej ntawm cov tshuaj ntxuav iav tshwj xeeb rau ntawm daim ntawv ntxuav.
4.Ua tib zoo saib xyuas kev ntxuav kom raug
Thaum siv daim ntawv ntxuav, nco ntsoov ntxuav rau qhov kev taw qhia kom raug. Koj tuaj yeem ua raws li kev taw qhia ntawm kev txav mus los ntawm qhov chaw nruab nrab kom tsis txhob muaj cov cim fiber ntau dua lossis tsis meej ntawm lub lens.
5.Ua tib zoo saib xyuas cov txiaj ntsig ntawm kev tshuaj xyuas tom qab ua tiav kev ntxuav.
Tom qab ntxuav tas, siv lub iav loj lossis lub cuab yeej saib lub koob yees duab los xyuas seb qhov chaw ntawm lub lens puas huv thiab tsis muaj cov khoom seem lossis cov xim av.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-14-2023
