Siv cov lasers tuaj saib koj cov kev ua yeeb yam hauv tsev
Video projectors coj cov yeeb yaj kiab mus tsev nrog lub peev xwm los tso saib cov duab uas muaj ntau dua cov TV uas tshaj plaws. Txawm li cas los xij, hais kom ib tug video projector ua rau nws zoo tshaj plaws, nws yuav tsum tau muab ib daim duab uas yog ob qho tib si ci thiab qhia txog ib qho xim txawv xim.
Yuav kom ua tiav txoj hauj lwm no, yuav tsum muaj lub hauv paus uas tsim muaj lub teeb pom kev zoo. Tshaj li ob peb lub xyoo dhau los, ntau lub teeb tau txais kev yees technologies tau ua haujlwm, nrog Laser yog qhov tseeb nkag mus rau hauv tsev kawm ntawv.
Cia wb mus saib cov evolution of light source tech siv nyob rau hauv video projectors thiab li cas Lasers hloov cov kev ua si.
Cov Evolution ntawm CRTs mus rau Teeb Meem
Thaum pib, video projectors thiab projection TVs ua haujlwm CRT technology (xav hais tias cov duab me me hauv TV). Peb lub raj (xim liab, xim ntsuab, xiav) muaj ob lub teeb thiab pom kev duab.
Txhua lub raj xa mus rau ib qho ntawm nws tus kheej. Yuav kom pom ntau yam xim, cov leeg yuav tsum tau sib koom tes. Qhov no txhais tau hais tias cov xim sib tov tiag tiag coj qhov chaw ntawm lub vijtsam thiab tsis nyob hauv lub projector.
Qhov teeb meem nrog cov plab roj hmab tsis yog tsuas yog siv rau kev sib txig kom muaj lub meej mom ntawm daim duab duab yog tias ib lub raj muaj lossis tsis tau ua tsis tiav, tag nrho peb lub hlawv yuav tsum tau hloov kom lawv tag nrho cov xim xim zoo tib yam. Cov hlab dej kuj khiav ceev heev thiab yuav tsum tau txias kom txias los ntawm tshwj xeeb "cov gels" lossis "kua".
Rau sab saum toj nws, ob leeg CRT projectors thiab projection TVs noj ntau zog.
Qhov ua tau raws li CRT-based projectors yog tam sim no heev tsawg. Cov hlab ntsha muaj txij li tau muab hloov nrog cov roj teeb, nrog rau cov iav tshwj xeeb lossis cov xim xim uas cais lub teeb rau hauv liab, ntsuab, thiab xiav, thiab nyias muaj nyias "imaging chip" uas muab cov duab kom meej.
Nyob ntawm seb hom duab nti siv ( LCD, LCOS , DLP ), lub teeb tuaj ntawm lub teeb, tsom iav, lossis xim log, yuav tsum dhau los ntawm lossis tawm ntawm cov duab nti, uas tsim cov duab koj pom ntawm qhov screen .
Qhov Teeb Meem Txog Teeb Meem
LCD / LCOS thiab DLP "teeb-nrog-nti" projectors yog ib cov leap loj los ntawm lawv cov CRT-raws li cov neeg ua ntej, tshwj xeeb tshaj yog nyob rau hauv qhov ntau ntawm cov teeb uas lawv tuaj yeem tawm. Txawm li cas los xij, cov teeb ciaj tseem txav ntau lub zog tawm ntawm lub teeb ci tag nrho, txawm tias tsuas yog lub ntsiab xim ntawm xim liab, ntsuab, thiab xiav xwb.
Txawm hais tias tsis yog phem li CRTs, cov roj teeb tseem haus ntau lub hwj chim thiab tsim kom muaj cua sov, yuav tsum tau siv lub suab nrov nrov nrov ua kom lub siab txias.
Tsis tas li ntawd, txij thawj zaug koj tig rau lub voj voog tsom iav, lub teeb pib pib ploj thiab thaum kawg nws yuav dhau los yog kub nyhiab (feem ntau tom qab 3,000 rau 5,000 teev). Txawm tias CRT projection leeg, raws li loj thiab cumbersome raws li lawv, ntawd kub ntev ntev. Lub neej luv luv ntawm cov roj teeb yuav tsum tau hloov lub sijhawm hloov ntawm tus nqi ntxiv. Hnub no qhov kev thov rau eco-friendly khoom (ntau lub teeb projector kuj muaj Mercury), yuav tsum muaj lwm txoj hau kev uas yuav ua tau txoj hauj lwm zoo dua.
LED mus cawm?
Ib qho qhia ntxiv rau cov roj: LEDs (Lub teeb Emitting Diodes). LEDs muaj ntau dua li lub teeb thiab muaj peev xwm muab tso tawm ib qho xim (liab, ntsuab, lossis xiav).
Nrog lawv cov me me loj, projectors yuav ua ntau ntau compact - txawm hauv tej yam me me li smartphone. LEDs kuj tseem siv tau ntau dua cov roj teeb, tab sis lawv tseem muaj ob peb qho kev qaug zog.
- Ua ntej, LEDs tsis ci li taws teeb (muab piv rau ib qho teeb meem ntawm lub teeb pom kev zoo ntawm cov teeb meem ntawm LED).
- Qhov thib ob, Cov LEDs tsis tawm lub teeb sib tshooj. Qhov no txhais tau hais tias yog thaum lub teeb ci ntsa iab tawm ntawm cov teeb ci teeb ci hauv cov teeb ci, lawv muaj lub siab me ntsis scatter, lub ntsiab lus tias, txawm tias lawv muaj ntau tshaj li lub teeb, lawv tseem me ntsis inefficient.
Ib qho piv txwv ntawm ib qhov video projector uas siv cov LEDs rau nws cov teeb ci yog cov LG PF1500W.
Sau Lub Laser
Yuav kom daws tau cov teeb meem ntawm cov teeb lossis LEDs, muaj Laser teeb qhov siv tau.
Laser txhais rau L iight A mplification los ntawm S timulated E lub hom phiaj ntawm R kev sib haum xeeb.
Lasers tau siv txij txij li xyoo 1960 los ua cov cuab yeej hauv kev phais kho mob (xws li LASIK), kev kawm thiab kev lag luam hauv daim ntawv laser pointers thiab kev soj ntsuam cov kev taw qhia, thiab cov tub rog siv cov lasers hauv kev taw qhia, thiab ua tau riam phom. Tsis tas li ntawd, Laserdisc, DVD, Blu-duab tshav, Ultra HD Blu-ray, lossis CD player, siv lasers nyeem cov pits ntawm ib lub disc uas muaj suab paj nruag lossis video ntsiab lus.
Cov Laser Ua Tau Raws Li Yees duab Video
Thaum siv los ua ib qhov video projector teeb ci, Lasers muab ntau qhov zoo tshaj cov teeb thiab LEDs.
- Lasers daws qhov teebmeem scattering teebmeem ntawm emitting teeb ntsuav. Raws li lub teeb tawm ntawm lub laser yog ib zaug, nruj, nqaj, uas nws "thickness" muab khaws cia nyob rau nrug tshwj tsis yog hloov los ntawm kev ntxiv lo ntsiab muag.
- Tsawg zog siv zog. Vim yog qhov yuav tsum tau muab lub teeb txaus rau lub projector mus tso tus duab ntawm ib qho screen, ib lub teeb siv ntau zog. Txawm li cas los xij, vim txhua Laser tsuas xav tsim ib qho xim (zoo ib yam li ib qho LED), nws yog ntau dua.
- Muaj Cov Zis Teeb nrog cov cua kub tsis tshua tsim-tshwj xeeb tshaj yog tseem ceeb rau HDR , uas yuav tsum tau muaj kev kaj siab rau tag nrho cov nyhuv.
- Muaj kev txhawb rau cov xim xim dav dua thiab xim ntau dua xim.
- Zoo li Instant On / Off lub sij hawm-ntau tshaj qhov koj tau pom thaum koj xa lub TV rau thiab tawm.
- Kev pab tau ntev zog - 20,000 siv sij hawm los yog ntau tshaj yog yooj yim ua kom tiav, tshem tawm qhov xav tau lub sij hawm hloov lub sijhawm hloov.
Lub Mitsubishi LaserVue
Mitsubishi yog thawj tug siv cov lasers nyob rau hauv ib tug neeg siv video projector-raws li khoom. Nyob rau xyoo 2008, lawv pib qhia LaserVue nram qab-hauv TV. Lub LaserVue siv lub DLP-raws li qhov system ua ke nrog lub laser teeb qhov chaw. Hmoov tsis, Mitsubishi txiav tag nrho lawv lub tsheb-saib TVs (xws li LaserVue) hauv xyoo 2012.
Lub LaserVue TV ua haujlwm tauj peb lasers, ib leeg rau xim liab, ntsuab, thiab xiav. Peb kob teeb lub teeb pom kev zoo tau muab coj los tawm ntawm DLP DMD nti, uas muaj cov duab qhia meej. Cov kev tshwm sim tau tshwm sim ntawm qhov screen.
LaserVue TVs muaj cov khoom siv hluav taws xob zoo heev, xim xim, thiab qhov sib txawv. Txawm li cas los xij, lawv tau qis heev (muaj qis 65-ntom tau them rau ntawm $ 7,000) thiab txawm tias tsis muaj ntau tshaj li cov kev qhia hauv TV, tseem muaj cov kabmob qub tshaj Plasma thiab LCD TVs thaum lub sijhawm ntawd.
Video Projector Laser Light Source Configuration Piv Txwv
LUS CEEB TOOM: Cov duab saum toj no thiab cov lus piav qhia nram qab no yog cov generic -this tej zaum yuav txawv me ntsis nyob ntawm cov chaw muag khoom lossis daim ntawv thov.
Txawm hais tias LaserVue TVs tsis muaj lawm, Lasers tau raug siv rau kev siv ua lub teeb pom kev rau cov kab lis kev cai video hauv ob peb lub teeb meem.
RGB Laser (DLP) - Qhov kev txuam no zoo ib yam li uas siv hauv Mitsubishi LaserVue TV. Muaj 3 lub lauj kaub las, ib qho uas yog teeb liab liab, ib qho ntsuab, thiab ib qho xiav. Lub teeb liab, xim ntsuab, thiab xiav yog siv los ntawm qhov kev lag luam, lub yeeb nkab "lub yeeb nkab" thiab lub lens / khib nyiab / DMD Chip los ua ke, thiab tawm ntawm lub projector mus rau ib qho screen.
RGB Laser (LCD / LCOS) - Raws li DLP, muaj 3 lasers, tshwj tsis yog tias yuav tsum tawm ntawm DMD chips, peb RGB teeb kab teeb yog dhau los ntawm peb lub LCD Chips los yog reflected tawm 3 LCOS chips (txhua nti tau muab rau liab, ntsuab, thiab xiav) los tsim cov duab.
Txawm hais tias lub 3 laser system yog tam sim no siv qee cov yeeb yaj duab qhov projectors, vim nws cov nqi, tsis yog tam sim no siv nyob rau hauv DVR los yog LCD / LCOS projectors-tab sis muaj lwm, tus nqi qis lwm qhov uas yog nrov nrov siv nyob hauv projectors -cov Laser / Phosphor system.
Laser / Phosphor (DLP) - Qhov no yog qhov teeb meem me ntsis ntawm cov lithium thiab tsom iav uas yuav tsum tau tsim kom tiav ib daim duab tiav, tab sis los ntawm kev txo cov Lasers ntawm 3 mus rau 1, tus nqi ntawm kev siv yuav raug txo kom tsawg.
Nyob rau hauv no system, ib Laser emits xiav teeb. Lub teeb xiav ces muab faib rau ob. Ib lub nqaj txuas ntxiv los ntawm DLP lub cav sib cav, thaum lwm qhov ntaus lub log uas muaj ntsuab thiab daj phosphors, uas, tig mus, tsim ob lub teeb ntsuab thiab daj. Ntxiv cov teeb teeb ci, koom nrog lub xuab zeb xiav teeb, thiab tagnrho peb dhau los ntawm lub ntsiab DLP xim log, lub lens / ceg kev sib tsoo, thiab thaij tawm DMD nti, uas ntxiv cov duab cov ntaub ntawv rau xim xim. Cov xim duab tiav yog xa tawm ntawm lub projector mus rau ib qho screen.
Ib qho DLP projector uas ntiav Laser / Phosphor kev xaiv yog Viewsonic LS820.
Laser / Phosphor (LCD / LCOS), rau LCD / LCOS projectors, incorporating Laser / Phosphor lub teeb system zoo ib yam li DLP projectors, tshwj tsis yog tias siv lub DLP Chip / Xim Log sib dhos, lub teeb yog dhau los ntawm 3 Cov duab chips (LCD) los yog thaij tawm ntawm 3 LCOS chips (ib leeg rau liab, ntsuab, thiab xiav).
Txawm li cas los xij, Epson ntiav ib qho kev hloov uas ua haujlwm 2 lasers, ob qho tib si ntawm emit xiav lub teeb. Raws li lub teeb xiav ntawm ib lub laser kis tau los ntawm kev sib tw ntawm lub teeb ntawm lub teeb, lub teeb xiav ntawm Laser tsoo lub daj phaus dej, uas, tig mus rau, lub teeb xiav xiav rau hauv liab thiab ntsuab teeb kab teeb. Lub tsho tshiab tsim teeb liab thiab ntsuab teeb kab ces koom nrog lub xuab zeb tseem kab xev thiab kis mus txog ntawm lub teeb ntawm lub teeb lub cav.
One Epson LCD projector uas siv lub laser dual nrog ua ke nrog phosphor yog cov LS10500.
Laser / LED Hybrid (DLP) - Tseem muaj lwm txoj kev hloov, uas yog siv los ntawm Casio hauv qee qhov DLP projectors, yog Laser / LED hybrid lub teeb cav.
Hauv cov txheej txheem no, ib qho LED ua kom muaj lub teeb liab liab, thaum Laser siv los tsim teeb xiav. Ib feem ntawm xiav lub teeb nqaj yog muab faib tawm rau hauv ib txoj hlua ntsuab tom qab tawm lub phosphor color wheel.
Cov kab teeb liab, xim ntsuab, thiab xiav ces hla dhau lub condenser lens thiab qhia tawm ntawm DLP DMD nti, ua kom tiav cov duab tsim, uas yog tom qab ntawd cia rau ib qho screen.
Ib tug Casio projector nrog Laser / LED Hybrid Lub Teeb Cav yog XJ-F210WN.
Lub Plaub Hlis - Los Laser los sis Tsis Laser
Laser qhov projectors zoo tshaj plaws ntawm kev sib txuas ntawm lub teeb pom kev zoo, xim muaj tseeb, thiab lub zog ua haujlwm rau ob qho tib si cinemas thiab tsev siv yeeb yaj kiab.
Teeb raws li qhov projectors tseem dominate, tiam sis kev siv ntawm LED, LED / Laser, los yog Laser teeb pom kev. Lasers yog tam sim no siv rau hauv ib qho kev txwv ntawm cov yeeb yaj kiab video, yog li lawv yuav yog tus tseem kim tshaj plaws (Nqe ntau ntawm $ 1,500 mus rau ntau dua $ 3,000-kuj tseem xav tias tus nqi ntawm ib qho screen, thiab qee zaum, lo ntsiab muag).
Txawm li cas los xij, vim tias muaj kev nce ntxiv thiab cov neeg tau txais yuav ntau dua, cov nqi tsim nqi yuav los, uas ua rau qis luv nqi Laser qhov projectors - kuj xav txog qhov hloov ntawm cov teeb txawb vs tsis muaj hloov lasers.
Thaum xaiv ib qhov project projector - txawm yog hom teeb ci uas nws siv, xav kom haum koj qhov chaw saib ntawv, koj cov nyiaj, thiab cov duab yuav tsum ua rau koj zoo siab.
Ua ntej yuav txiav txim siab seb puas yog ib lub teeb, LED, Laser, lossis LED / Laser hybrid yog qhov zoo tshaj plaws rau koj, tshawb nrhiav txhua hom.
Xav paub ntau ntxiv rau ntawm qhov video projector lub teeb tso zis, thiab seb yuav tsim teeb tsa li cas rau cov duab ua ke, xa mus rau peb tus khub cov khoom: Cov Qe, Lumens, thiab Brightness - TVs vs Video Projectors thiab Yuav Teem Los Ua Ib Yees Lom Zem
Ib lub sij hawm dhau los-Ib yam li "LED TV" , lub laser (s) hauv ib lub projector tsis tsim qhov kev nthuav dav hauv cov duab, tab sis muab lub teeb qhov chaw uas ua rau tsim cov yeeb yaj duab kom pom cov duab tha xim ntawm ib qho screen. Txawm li cas los, nws yooj yim dua siv lub sij hawm "Laser Projector" es tsis yog "DLP los yog LCD video projector nrog Laser Light Source".