A lens luam theej kabyog ib lub lens tshwj xeeb uas feem ntau siv rau hauv cov koob yees duab kab scan. Nws ua cov duab scanning ceev ceev hauv qee qhov ntev. Nws txawv ntawm cov koob yees duab ib txwm muaj thiab feem ntau siv rau hauv kev lag luam.
Txoj cai ua haujlwm ntawm kab scan yog dab tsi?lub lens?
Lub hauv paus ntsiab lus ua haujlwm ntawm lub lens luam theej kab yog raws li thev naus laus zis luam theej kab. Thaum ua haujlwm, lub lens luam theej kab luam theej kab ntawm qhov chaw kuaj thiab sau cov ntaub ntawv teeb pom kev ntawm txhua kab ntawm pixels los pab lub lens luam theej kab ntes tau daim duab ntawm tag nrho cov qauv es tsis txhob ntes tau tag nrho daim duab ib zaug.
Tshwj xeeb, txoj cai ua haujlwm ntawm lub lens kab scan muaj ntau kauj ruam:
Kev thaij duab pom kev:Lub teeb liab ntawm cov qauv uas yuav raug luam theej yog ntes los ntawm cov khoom siv photosensitive kab-rau-kab ntawm lub lens luam theej kab thiab hloov mus ua cov teeb liab hluav taws xob.
Kev luam theej kab-rau-kab:Cov khoom siv photosensitive kab-rau-kab scans los ntawm sab saud mus rau hauv qab ntawm cov qauv ntawm qee qhov ceev, hloov cov ntaub ntawv teeb ntawm txhua kab mus rau hauv lub teeb liab hluav taws xob.
Kev ua cov teeb liab:Tom qab ua tiav lawm, lub teeb liab hluav taws xob raug hloov mus ua lub teeb liab digital los tsim ib daim duab.
Kev xaws duab:xaws ua ke cov teeb liab digital ntawm txhua kab kom thaum kawg tsim tau ib daim duab ntawm tag nrho cov qauv.
Txoj cai ua haujlwm ntawm kab luam theej duab lens
Yuav tsum tau xyuam xim rau cov lens scan kab li cas?
Cov kev cai ntawmcov iav tsom kabmuaj feem cuam tshuam nrog ntau yam kev xav tau thiab cov xwm txheej ntawm daim ntawv thov. Cov kev ntsuas hauv qab no yuav tsum tau tsom mus rau:
Kev daws teeb meem
Qhov kev daws teeb meem ntawm lub lens scan kab feem ntau yog qhov tseem ceeb tshaj plaws. Qhov kev daws teeb meem siab dua, qhov kev pom tseeb ntawm daim duab siab dua, uas muaj feem cuam tshuam nrog tus lej ntawm cov pixels hauv thaj chaw thaij duab thiab qhov loj ntawm cov khoom thaij duab.
Qhov qhib
Qhov loj ntawm lub qhov (aperture) tswj qhov ntau ntawm lub teeb uas nkag mus rau hauv lub lens, cuam tshuam rau qhov kaj ntawm daim duab lens thiab lub sijhawm raug ntawm zaj duab xis. Lub qhov (aperture) loj tuaj yeem txhim kho qhov zoo ntawm daim duab thaum siv rau hauv qhov chaw uas tsis muaj teeb pom kev zoo, tab sis tej zaum yuav txo qhov tob ntawm daim duab.
Qhov ntau ntawm kev tsom mus rau
Qhov ntau thiab tsawg ntawm qhov tsom mus rau lub lens yog qhov deb uas lub lens tuaj yeem tua tau. Feem ntau, qhov dav dua qhov zoo dua, thiab qhov dav dua txhais tau tias nws tuaj yeem tua tau ntau yam khoom ntawm qhov ntev sib txawv.
Qhov siab ntawm daim duab
Qhov siab ntawm daim duab yog qhov ntev ntawm thaj chaw thaij duab ntawm lub lens hauv qhov kev taw qhia luam theej duab. Qhov siab ntawm daim duab loj dua yuav tsum tau ceev luam theej duab sai dua, uas kuj yuav ua rau muaj kev ceev thaij duab sai dua thiab kev xa cov ntaub ntawv sai dua.
Ua tib zoo saib xyuas qhov zoo ntawm daim duab
Izoo tshaj plaws
Qhov zoo ntawm cov duab ntsuas tau los ntawm cov yam ntxwv xws li kev daws teeb meem sab nraud, qhov sib piv ntawm lub teeb liab thiab lub suab nrov, thiab qhov sib piv ntawm cov xim. Feem ntau, qhov kev daws teeb meem sab nraud siab dua, qhov sib piv ntawm lub teeb liab thiab lub suab nrov, thiab qhov sib piv ntawm cov xim txhais tau tias cov duab zoo dua.
Qhov loj thiab qhov hnyav ntawm lub lens
Qhov loj thiab qhov hnyav yuav cuam tshuam rau kev sivcov iav tsom kabhauv qee daim ntawv thov. Yog li ntawd, qhov loj thiab qhov hnyav ntawm lub lens kuj yuav tsum tau txiav txim siab raws li cov xwm txheej ntawm daim ntawv thov sib txawv.
Cov Lus Xaus:
Yog tias koj xav yuav ntau hom lens rau kev soj ntsuam, scanning, drones, smart home, lossis lwm yam kev siv, peb muaj yam koj xav tau. Tiv tauj peb hnub no kom paub ntau ntxiv txog peb cov lens thiab lwm yam khoom siv.
Lub sijhawm tshaj tawm: Cuaj hlis-24-2024
