Thaum cov lus qhia coj los siv hauv chav tswj, TV studios thiab lwm qhov chaw, moire qee zaum tshwm sim.Kab lus no yuav qhia txog qhov ua rau thiab kev daws teeb meem ntawm moire.
LED zaub tau maj mam dhau los ua cov khoom siv tseem ceeb hauv cov chav tswj thiab TV studios.Txawm li cas los xij, thaum siv, nws yuav pom tias thaum lub koob yees duab lo ntsiab muag yog tsom rau ntawm cov duab coj, qee zaus yuav muaj kab txaij zoo li dej nthwv dej thiab xim txawv txawv (raws li qhia hauv daim duab 1), uas feem ntau hu ua Moire qauv.
Daim duab 1
Yuav ua li cas moire qauv tuaj txog?
Thaum ob tus qauv nrog spatial frequencies sib tshooj, lwm tus qauv tshiab feem ntau yog tsim, uas feem ntau hu ua moire (raws li qhia hauv daim duab 2).
Daim duab 2
Cov tsoos LED zaub yog tsim los ntawm kev ywj pheej lub teeb-emitting pixels, thiab muaj qhov pom tseeb tsis muaj teeb pom kev zoo ntawm pixels.Nyob rau tib lub sijhawm, cov ntsiab lus photosensitive ntawm cov koob yees duab digital kuj muaj qhov pom tseeb tsis muaj zog photosensitive thaum lawv nkag siab.Moire tau yug los thaum muaj cov duab digital thiab digital photography ua ke.
Yuav tshem tawm lossis txo Moire li cas?
Txij li thaum kev sib cuam tshuam ntawm kab sib chaws ntawm LED zaub screen thiab kab sib chaws qauv ntawm lub koob yees duab CCD ua ib tug Moire, hloov tus nqi txheeb ze thiab kab sib chaws qauv ntawm kab sib chaws qauv ntawm lub koob yees duab CCD thiab daim phiaj qauv ntawm lub LED zaub screen tau theoretically. tshem tawm lossis txo Moire.
Yuav ua li cas hloov daim phiaj qauv ntawm lub koob yees duab CCD thiabLED zaub?
Nyob rau hauv cov txheej txheem ntawm kev kaw cov duab ntawm zaj duab xis, tsis muaj cov pixels tsis tu ncua, yog li tsis muaj qhov nrawm nrawm thiab tsis muaj moire.
Yog li ntawd, qhov tshwm sim moire yog ib qho teeb meem tshwm sim los ntawm digitalization ntawm cov koob yees duab TV.Txhawm rau tshem tawm moire, qhov kev daws teeb meem ntawm LED cov duab thaij duab ntes hauv lub lens yuav tsum tsawg dua qhov ntau zaus ntawm cov duab photosensitive.Thaum tus mob no txaus siab, nws yog tsis yooj yim sua rau cov kab txaij zoo ib yam li cov photosensitive ntsiab tshwm nyob rau hauv daim duab, thiab yuav tsis muaj moire.
Txhawm rau kom txo qis moire, qee lub koob yees duab digital tau nruab nrog lub lim dej qis los lim tawm qhov ntau dua spatial zaus hauv daim duab, tab sis qhov no yuav txo qis ntawm cov duab.Qee lub koob yees duab digital siv cov sensors nrog ntau dua spatial zaus.
Yuav ua li cas hloov tus nqi txheeb ze ntawm daim phiaj qauv ntawm lub koob yees duab CCD thiab LED zaub screen?
1. Hloov lub koob yees duab lub kaum sab xis.Moire tuaj yeem raug tshem tawm lossis txo los ntawm kev tig lub koob yees duab thiab hloov lub kaum sab xis ntawm lub koob yees duab me ntsis.
2. Hloov lub koob yees duab shooting txoj hauj lwm.Moire tuaj yeem raug tshem tawm lossis txo los ntawm kev txav lub koob yees duab mus rau sab lossis nce thiab nqis.
3. Hloov qhov chaw tsom rau ntawm lub koob yees duab.Kev ua kom pom tseeb dhau lawm thiab kev nthuav dav siab ntawm cov qauv ntxaws tuaj yeem ua rau moire, thiab hloov qhov chaw ua kom pom tseeb me ntsis tuaj yeem hloov qhov sharpness thiab pab tshem tawm moire.
4. Hloov qhov focal ntev ntawm lub lens.Cov lens sib txawv lossis focal ntev yuav siv tau los tshem tawm lossis txo cov moire.
Post lub sij hawm: Nov-15-2022