Kana LED inoratidzira skrini ichishandiswa mukamuri yekudzora, TV studio nedzimwe nzvimbo, dzimwe nguva zvinokonzeresa kupindira kwemoire kumufananidzo wekamera.Iri bepa rinosuma zvinokonzeresa uye mhinduro dze moire, uye rinotarisa maitiro ekusarudza LED kuratidza skrini kudzikisa kana kubvisa moire.
1.Moire yakavapo sei?
2.How kubvisa kana kuderedza moire?
3.Ungashandura sei grid chimiro cheCCD kamera uye LED kuratidza?
4.Ungashandura sei kukosha kwekamera yeCCD uye LED kuratidza grid chimiro?
5.Is pane nzira yekushandura iyo isiri inopenya dema nzvimbo kuita inopenya nzvimbo pane LED kuratidzwa?
Paunenge uchitora mapikicha pa LED yemagetsi kuratidza skrini mukushanda, mamwe mitsetse isinganzwisisike uye ripples dzisina kujairika dzinoonekwa.Aya ma ripples anonzi moire fringes kana moire effects.Moire mhedzisiro ndeye maonero ekuona.Kana boka remitsara kana zvibodzwa zvichionekwa zvakaiswa pamusoro perimwe boka remitsara kana mapoinzi, mitsetse iyi kana zvibodzwa zvakasiyana pakukura, kona kana kupatsanuka.
Mhedzisiro huru yeMoore mhedzisiro iterevhizheni uye kamera.Kana kupenya pakati pemapikseli e LED electronic display screen kusina kuenzana, chimiro chemufananidzo pa LED electronic display screen chichakanganiswa uye kupenya kuchakonzerwa kana chidzitiro chekuratidzira chinonyatsotariswa.Izvi zvinounza dambudziko guru pakugadzirwa kweTV studio uye zvimwe zvevhidhiyo.
(1) Ko moire yakavapo sei?
Moire:
Kana mapatani maviri ane spatial frequency akapindirana, imwe nyowani nyowani inowanzogadzirwa, iyo inowanzonzi moire pateni (sezvinoratidzwa muFigure 2).
Iyo yechinyakare LED inoratidzira skrini yakarongwa nemapikseli akazvimirira anopenya, uye pane zviri pachena nzvimbo dzisina kupenya nhema pakati pemapikisi.Panguva imwecheteyo, iyo inonzwisa yekamera yedhijitari zvakare ine yakajeka isina kusimba mwenje inonzwa nzvimbo kana ichinzwa mwenje.Kana kuratidzwa kwedhijitari uye mafoto edhijitari aripo panguva imwe chete, iyo moire pateni inozvarwa.
Sezvo CCD (image sensor) chinangwa chepamusoro (photosensitive surface) yekamera yakafanana nemufananidzo uri pakati peMufananidzo 2, nepo tsika ye LED inoratidzira skrini yakafanana nemufananidzo uri kuruboshwe rweMufananidzo 2. Inoumbwa. yemachubhu emwenje emwenje anoburitsa akarongwa nenzira inowirirana.Iyo yese skrini yekuratidzira ine hombe isina kupenya nzvimbo, ichigadzira grid senge pateni.Kupindirana kwezviviri izvi kunoumba moire pateni yakafanana nekurudyi kweMufananidzo 2.
(2) Nzira yekubvisa kana kuderedza moire?
Sezvo iyo LED inoratidzira grid chimiro ichipindirana nekamera CCD grid chimiro kugadzira moire mapatani, kushandura kukosha kwakaenzana uye grid chimiro chekamera CCD grid chimiro uye iyo LED inoratidzira grid chimiro inogona ne theore kubvisa kana kuderedza moire mapatani.
(3) Ungashandura sei grid chimiro cheCCD kamera uye LED kuratidza?
Mukuita kwekurekodha firimu, hapana pixel ine kugovera nguva dzose, saka hapana yakagadziriswa nzvimbo frequency uye hapana moire.
Naizvozvo, iyo moire phenomenon idambudziko rinokonzerwa nedigitalization yeTV kamera.Kubvisa iyo moire, kugadzirisa kweiyo LED inoratidzira chidzitiro chifananidzo chakatorwa mulenzi chinofanirwa kuve chakaderera pane spatial frequency yechinhu chinonzwa.Kana mamiriro aya asangana, hapana mipendero yakafanana neye sensor inogona kuoneka mumufananidzo, uye nekudaro hapana moire ichagadzirwa.
Mune mamwe makamera edhijitari, sefa yepasi-pasi inoiswa kusefa yakakwira spatial frequency chikamu chemufananidzo kuitira kuderedza moire, asi izvi zvinoderedza kupinza kwemufananidzo.Mamwe makamera edhijitari anoshandisa yakakwirira spatial frequency sensing zvinhu.
(4) Ungashandura sei kukosha kwekamera CCD uye LED kuratidza grid chimiro?
1. Shandura kona yekupfura kamera.Nekutenderedza kamera uye zvishoma kushandura kona yekupfura yekamera, iyo moire ripple inogona kubviswa kana kuderedzwa.
2. Shandura nzvimbo yekupfura kamera.Nekufambisa kamera kuruboshwe uye kurudyi kana kumusoro uye pasi, unogona kubvisa kana kuderedza mole ripple.
3. Shandura kuisa pfungwa pane kamera.Iyo yekutarisisa uye yakakwira ruzivo iyo yakanyanya kujeka pane yakadzama dhizaini inogona kukonzera mole ripples.Kushandura zvishoma kugadzika kwekutarisa kunogona kushandura kujeka, nekudaro kubatsira kubvisa mole ripples.
4. Shandura kureba kwekutarisa kwe lens.Malenzi akasiyana kana kureba kwekutarisa kunogona kushandiswa kubvisa kana kuderedza molar ripple.
Chiratidziro che LED chakarongedzwa nemapikseli akazvimirira anopenya, uye kune nzvimbo dziri pachena dzisina kupenya dema pakati pepixels.Tsvaga nzira yekushandura iyo isina kupenya dema nharaunda kuita inopenya, uye kuderedza kupenya mutsauko nemapikisi akazvimirira anopenya mapikisi, ayo anogona kudzikamisa kana kutobvisa moire.
(5) Pane here nzira yekushandura iyo isina kupenya dema nzvimbo kuita inopenya nzvimbo pa LED kuratidzwa?
COB kurongedza maitiro LED kuratidza, zviri nyore kuita izvi.Kana isu tiine mukana wekuisa iyo LED kuratidzwa kweCOB pamwe neiyo LED kuratidzwa kweSMD, tinogona kuona zviri nyore kuti: iyo LED inoratidzira COB inoburitsa mwenje wakapfava senge pamhepo sosi, ukuwo kuratidzwa kwe LED kweSMD kuri pachena kunonzwa kuti zvimedu zvinopenya zvinopenya zvakazvimirira.Zvinogona kuonekwa kubva kuMufananidzo 3 kuti nzira yekuisa chisimbiso yeCOB yekurongedza yakasiyana zvakanyanya neiyo SMD.Nzira yekuisa chisimbiso yeCOB yekurongedza ndiyo yakazara mwenje-inoburitsa pamusoro pemapikisi mazhinji anoburitsa chiedza pamwechete.Iyo yekuisa chisimbiso yeSMD kurongedza ipikisi inopenya imwe chete, inova yakazvimirira inopenya poindi.
MPLED inogona kukupa LED kuratidzwa kweCOB yekurongedza maitiro, uye yedu ST Pro yakatevedzana zvigadzirwa zvinogona kupa mhinduro dzakadaro.Iyo LED inoratidzira skrini inopedzwa necob yekurongedza maitiro ine diki nzvimbo, yakajeka uye yakanyanya kutetepa kuratidza mufananidzo.Iyo chiedza-emitting chip inoiswa zvakananga paPCB board, uye kupisa kunoparadzirwa zvakananga kuburikidza nebhodhi.Iko kupisa kunopisa kukosha kuduku, uye kupisa kunopisa kwakasimba.Chiedza chepamusoro chinoburitsa chiedza.Chitarisiko chiri nani.
Mhedziso: Nzira yekubvisa kana kuderedza moire pakuratidzira kwe LED?
1. Rongedza kona yekupfura kamera, chinzvimbo, kugadzika kwekutarisa uye kureba kwelenzi.
2. Shandisa kamera yemafirimu echinyakare, kamera yedhijitari ine yakakwira spatial frequency sensor, kana kamera yedhijitari ine yakaderera-pass sefa.
3. LED inoratidzira skrini muCOB yekuisa fomu inosarudzwa.
Nguva yekutumira: Nov-04-2022
