Yuav ua li cas xaiv ib tug projector: cov kws muaj txuj tswv yim

Niaj hnub no peb saib lub ntsiab uas yuav muab rau ntau tej zaum buyers projectors kom paub xaiv, thaum tsis relying rau advertising slogans los yog tales muag khoom thiab tiag tiag kev, specifications thiab kev paub txog yuav ua li cas los xaiv tus projector. Excursion lumens nyob rau hauv lub ntiaj teb no, thiab lwm yam pixel matrices tshaj tawm hais tias qhib.

Muaj tseeb koj twb xav yuav ua li cas los xaiv tus projector. Kuv yuav xav tias cov ntaub ntawv ntawm cov ntawv no sau los ntawm WHO thiab cov me tsheb. Kuv qhia mus ua ib tug yooj yim thiab qab ntxiag txoj kev taug, txiav txim rau koj tus kheej uas yog zoo dua - ib tug projector los yog TV, thiab nyob rau thaum xaus ua ib tug kws muaj txuj nyob rau hauv cov teeb meem no.

Ntau yam niaj hnub projectors muaj peev xwm mus dag ntxias leej twg uas thawj raus nyob rau hauv txoj kev tshawb no ntawm no lub npe. Loj, me me, portable los yog nyob ruaj ruaj, nrog ib Rev ntawm cov yam ntxwv nyob rau hauv lub specification thiab cov nuj nqis frightening pricelist. Wb koj saib xyuas thiab faib cov khoom, txhais tau lawv cov kev pab raws qib thiab xav tau kev pab thiab tom qab tus kho lus muaj feem xyuam rau cov nyiaj txiag rau yav tom ntej yuav nyob rau hauv peb cov kab hauv qab no tsuas yog ib tug ob peb sib tw. Ntawm no yog mus rau lawv, thiab yuav nws thiaj li muaj ib tug tham "lub plawv rau lub plawv".

Yuav ua li cas xaiv ib tug projector thiab dab tsi mus nrhiav rau?

Yam tooj 1. Thawj ntawm tag nrho cov, koj yuav tsum them sai sai mus rau qhov twg thiab yuav ua li cas koj npaj yuav siv rau hauv lub projector. Nyob rau hauv no, emerges ib tug ob peb hom:

• Tsev (tsev tsev ua yeeb);
• mus ua hauj lwm (presentations thiab lub rooj sib tham);
• rau pej xeem cov txheej xwm (qhia tau hais tias, concerts, txheej xwm).

Qhov no yog qhov pib taw tes, uas yuav tsum tau raws li nyob rau hauv ntxiv kev soj ntsuam ntawm cov neeg. Tsim nta thiab specifications rau txhua yam khoom yuav tsum ho txawv los ntawm txhua lwm yam.

Yam tooj 2. Tus tom ntej nam no muaj zog heev rau lub zoo zaub ntawm ib tug loj screen. Nws yog ib lub ci ci ntawm cov projector, thiab yuav tsum tau leej nyob rau hauv cov lus - ntawm lub hwj chim ntawm lub teeb flux, ib tug projector yuav emit. Chav nyob rau hauv uas lub measured projector aperture, hu ua ANSI los yog lumens.

• Rau chav tsev me me puv shading, cov nqi no yuav yog los ntawm 600 rau 800 units.
• Mus ua hauj lwm nyob rau hauv ib tug ib nrab teeb pom kev zoo tsim ntaus ntawv muaj peev xwm ntawm delivering "nyob rau lub roob" brightness los ntawm 1000 mus 1800 units.
• Yog hais tias koj yuav tsum ua hauj lwm rau tag nrho cov tsis blackout, nyob rau hauv nruab hnub nrig - nws yog zoo dua rau opt rau lub hwj chim ntawm cov qauv ntawm 2000 mus 3000 units.
• 3,000 units - rau cov chav txog li 100 square meters nrog ci nruab hnub nrig.
• 5000 thiab ntau - halls rau 150-200 cov neeg uas muaj ib tug kaj lub teeb.
• Projectors nrog ib tug luminosity 10,000 thiab ntau - nws yog kev projectors, npaj rau loj kev hais kwv txhiaj halls thiab stadiums.

Yam №3. Daws teeb meem ntawm lub projector. Qhov no quantifies lub peev xwm ntawm lub projector tso saib ib tug tej yam muaj pes tsawg tus ntawm cov ntsiab lus (pixels) rau qhov kev tshuaj ntsuam ib chav tsev cheeb tsam. Lub siab dua cov kev daws teeb meem ntawm lub projector - lub me me thiab lub grain, qhov ntau ncauj lus kom ntxaws cov duab no yog, thiab zoo dua nws yuav zoo hauv daim duab ntawm qhov screen loj. Tab sis tsis tau muab kev koom tes nyob rau hauv astronomical nuj nqis uas yuav kho tau: daim duab zoo heev nyob rau hauv lub teeb liab daws teeb meem, uas yog txhab khoom mus rau projector rau zaub. Standard projector 600x800 pixels kev daws teeb meem zaub tso cai yuav luag lossless cov ntaub ntawv uas nyob rau hauv DVD zoo. Yuav kom tso saib high-txhais dluab zoo zoo rau ib tug qauv nrog ib rooj kev 1280 los ntawm 800, thiab txawm zoo dua nyob rau hauv Tag nrho HD - 1920 rau 1080 (thaum nws los txog rau lub tsev ua yeeb yam - qhov no yog qhov tsuas tau tshuaj).

Yam №4. Piv lub projector. Qhov no parameter yog lub luag hauj lwm rau lub "qhov tob ntawm cov xim". Nyob rau hauv qhov tseeb, lub peev xwm ntawm lub projector mus tso saib lub feem ntau tiag tiag li dub thiab dawb xim thaum projecting dluab rau ib tug loj screen. "Tus Golden txhais li cas" - qhov nruab nrab ntawm lub siab tshaj plaws thiab yam tsawg kawg nkaus qhov tseem ceeb ntawm ob peb ua qauv. By thiab loj, qhov txawv ntawm 800: 1 thiab 1000: 1 yog yuav luag imperceptible.

Tag nrho lwm yam tsis ntawm projectors yog heev uas zoo sib xws thiab tej zaum yuav tsuas txawv me ntsis los ntawm txhua lwm yam. Ua ntej koj yuav xaiv ib tug projector mus tas li - yuav ua los ntawm lawv xav tau kev pab: lub xub ntiag ntawm Wi-nkaus, «ib daim duab-nyob rau hauv-daim duab" freeze-ncej thiab lwm yam "neeb thiab whistles" yog tsis tseem ceeb. Xyuas kom tseeb tias koj muaj lub ntsiab connectors uas yog lub luag hauj lwm rau cov tswv yim teeb liab (dua li hauv lub xub ntiag ntawm ib tug HDMI tswv yim), them mloog mus rau lub neej ntawm lub teeb thiab tus nqi ntawm yuav ib tug spare hloov. Qhov no, nyob rau hauv tus, yuav tsum txaus kom to taub yuav ua li cas los xaiv poektor thiab dab tsi koj chirps hitroglazy Muag.