Ntau tus neeg los ntawm lub sijhawm rau lawv nco ntsoov txog qee yam uas tseem tshuav nyob hauv USSR. Daim ntawv no suav nrog cov projectors uas tso cai rau saib ntau yam swb. Niaj hnub no nws yog qhov nyuaj kawg los yuav qhov khoom siv ntawd, tshwj tsis yog koj tuaj yeem nrhiav tau ntawm qee qhov kev twv muag online. Txawm li cas los xij, cov neeg uas xav tuaj yeem sib sau ua ke tus projector los ntawm lawv tus kheej.
Cov Lus Qhia
Kauj ruam 1
Yog tias koj txiav txim siab tsim XGA qhov projector rau koj tus kheej, tsis txhob siv nyiaj ntau rau qhov yuav ib qho tsis tshua zoo. Rau kev sib piv, koj tsuas yog yuav tsum tau suav tag nrho cov txiaj ntsig ntawm kev sib sau ua ke hauv tsev no. Hauv kev tshwj xeeb, VGA (640x480) lossis SVGA (800x600) projectors muab 480 thiab 300 txhiab pixels, raws li tau hais. Tsim kom muaj XGA qhov projector koj tus kheej thiab tau 800K pixels. Yog tias peb sib piv cov nqi ntawm cov cuab yeej ua tiav thiab nws cov nqi nyob hauv lub ntiaj teb ua lag luam, ces cov nuj nqis no yog $ 300 thiab $ 1,500.
Kauj ruam 2
Pib nrog backlit LCD. Koj tsis tas yuav yuav cov qauv tshiab. Sim nrhiav qhov screen qub uas raug tus nqi tsawg dua $ 100. Yuav lub LCD uas muaj qhov ntev tsis tshaj 14-15 ntiv.
Kauj ruam 3
Kuj tseem tau txais lub tshuab projection, qhov nqi nruab nrab ntawm uas yog $ 50. Ntau lub tuam txhab koom nrog lawv cov kev tsim khoom: Elmo thiab 3M, WolfVision thiab Liesegang, thiab lwm yam. Ua tib zoo mloog rau lub teeb ci ntawm lub teeb. Peb yuav tsum ua los ntawm cov txheeb cais hauv qab no: lub zog tau qhia rau ntawm lub thawv ntawm 400 watts qhov tseeb hloov mus rau hauv 3500 ANSI lumens. Hauv qhov no, koj tuaj yeem ua tiav tsis nco qab txog cov tsos ntawm lub cuab yeej.
Kauj ruam 4
Xaiv cov cuab yeej ntawm lub zog nruab nrab, vim hais tias kev nyeem ntau dhau lawm yuav ua rau ntau qhov kev hloov ua kom sov, uas lub LCD vaj huam sib luag tsis tuaj yeem ua. Qhov tom kawg xav tau cua txias los ntawm lub sijhawm.
Kauj ruam 5
Yog li, koj tuaj yeem pib sib sau ua ke rau qhov projector:
- tshem tawm cov vaj huam sib luag ntawm LCD los saib;
- tshem tawm txhua txoj kab hluav taws xob kom koj tuaj yeem tau txais ntawm lub rooj tsavxwm inverter. Txhawm rau kom yooj yim, sau tag nrho cov xov hlau nrog cov ntawv sau npe kom pab lawv ua ke thiab tsis txhob ntxhov siab;
- Tso tus me kab txuas me me hauv qab kab ntawv (koj tuaj yeem siv npuas dej);
- txhim kho vaj huam sib luag kom nws tsis txhob hla saum npoo;
- txuas kab txuas rau inverter thiab maub los;
- muab tus kiv cua me tso rau ntawm nws uas yuav txias lub vaj huam sib luag.
Koj tus XGA projector tau npaj tiav.
