Daim iav twg siv hauv CCTV koob yees duab?
Daim iav twg siv hauv CCTV koob yees duab?

Video: Daim iav twg siv hauv CCTV koob yees duab?

Video: Daim iav twg siv hauv CCTV koob yees duab?
Video: Nraug txuj kev hlub 2024, Hlis ntuj nqeg
Anonim

Txawm li cas los xij, CCTV koob yees duab systems yog kim thiab nyuaj rau siv. Koj yuav tsum xav txog kom tau ib qho convex iav . Convex yog dab tsi iav ? Nws yog nkhaus iav uas tso cai rau kom pom kev zoo dua ua tsaug rau qhov nws cuam tshuam lub teeb nyob rau hauv ib qho kev sib txawv.

Tsuas yog, daim iav twg siv hauv cov koob yees duab?

Concave iav yog siv nyob rau hauv lub electronmicroscopes thiab magnifying iav, Lawv yog siv nyob rau hauv qhov pom lub foob pob ntes thiab lawv yog siv hauv lub teeb nyem iav ntawm koob yees duab.

Tsis tas li ntawd, qhov zoo ntawm daim iav convex yog dab tsi? Rau cov tsav tsheb, lub qhov zoo ntawm muaj convex saib rov qab iav yog qhov yooj yim. Convexmirrors ua kom cov neeg tsav tsheb pom ntau dua vim lawv muab qhov pom zoo dua los ntawm kev txo qis cov khoom uas lawv xav txog.

Ib tug kuj nug, vim li cas cov iav convex siv rau kev ruaj ntseg?

Vim tias nws muab cov duab nrog cov chaw pom loj (txhais tau tias thaj chaw me me muaj ntau cov duab duab). Duab tsim los ntawm daim iav yog erect ib yam nkaus thiab yog li nws yooj yim los txheeb xyuas cov khoom tau yooj yim. Hauv khw loj loj, iav iav yog siv rau kev ruaj ntseg lub hom phiaj. Vim li cas?

Cov koob yees duab puas muaj iav?

Ib lub lens reflex koob yees duab muaj ib iav yog li tus kws yees duab tuaj yeem saib los ntawm lub viewfinder thiab pom raws nraim li cas zaj duab xis ntawm sensor tab tom yuav ntes. Tab sis muaj txhua yam koob yees duab . Rangefinders, Polaroids, thiab newfangledmirrorless digital koob yees duab tag nrho tswj tsis muaj ib iav.

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