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Toshiba TDP-EW25 - ESP projektor
29.07.2008.
    « Prev  : Stranica 1 od 2 :  Next »      By ::  Krešimir Matanović 
- 1. dio -
Nakon godišnjih odmora vraćamo se odmorni i orni našem uobičajenom ritmu testiranja računalne opreme. Od svega što se nakupilo u našem labu proteklih tjedana za početak smo odabrali nešto čime se na PC Ekspertu nikada do sada nismo bavili - projektor. S obzirom da je i ovaj segment tržišta vrlo zanimljiv, a uz to usko vezan uz računala odlučili smo testirati jedan Toshibin model kojeg krasi kratica ESP (Extreme Short throw Projector). Ovo znači kako je EW25 (uz slabijeg brata EX20) sposoban projicirati sliku velike dijagonale sa vrlo kratke udaljenosti od površine na koju projicira. Kako nam se svidio i koje su prednosti ovakvog tipa projektora pročitajte dalje u članku.

EW25 dolazi u crnoj platnenoj torbi sa remenom koji olakšava transport. S obzirom na velike dimenzije projektora i torbe (što smo pokušali dočarati smjestivši ju pored jednog sasvim običnog upaljača), vjerujemo kako ćete ga rijetko htjeti prenositi, no dobro je znati da je to moguće učiniti vrlo sigurno jer je projektor odlično zaštićen u njoj. Sa svih strana, torba je podebljana spužvama koje imaju zadatak štititi plastično tijelo projektora. Uz prostor za projektor, torba ima i poveći džep u koji su smješteni kabeli, daljinski upravljač, upute i ostalo, a prostor ćete moći iskoristiti i za još poneku sitnicu.

Sam projektor je smješten u crno-sivo kućište čiji je dizajn vrlo funcionalan. Lampa i sistem leća koje se nalaze na lijevoj strani (ukoliko projektor gledamo sa prednje starne) zaštićeni su vratašcima koja pomičemu u desno kada projektor želimo korisiti. Iznad toga je smještena polugica za ručno podešavanje fokusa, a tik iza su sve potrebne tipke za podešavanje parametara projektora. Bočne stranice projektora su perforirane kako bi zrak što lakše strujao kroz projektor, a sve u svrhu boljeg hlađenja. Dobro hlađenje čitavog sistema je nužno jer se lampa dosta zagrijava i nakon dužeg rada zrak koji izlazi iz projektora je poprilično topao. EW25 na podlozi leži na tri nožice sa gumenim čepićima pomoću kojih reguliramo visinu (princip vijka) i položaj projektora u odnosu na podlogu. Dimenzije projektora kao što smo rekli nisu malene, a iznose 337 x 118 x 265 mm uz težinu od 4.2kg.

Projektor je napravljen u DLP (Digital Light Processing) tehnologiji za koju znamo da je zaslužan Texas Instruments što je i naznačeno na prednjoj strani projektora. Za prikaz slike kod DLP tehnologije zaslužna su mikroskopski mala zrcala koja su položena na čip. Taj čip se naziva DMD (Digital Micromirror Device), a u EW25 modelu je on velik 0.65 inča. Maksimalna rezolucija koju je ovaj projektor sposoban prikazati je 1280x800 (WXGA) u 16:10 formatu (mogućnost je i 4:3) uz kontrast 2000:1. Svjetlina je 2600 ANSI-lumena, a snaga TLPLW15LAMP lampe je 275W. Maksimalni životni vijek u normalnom radu joj je do 2000 sati, dok je u ECO modu 3000 sati. Leća ima fokalnu duljinu od 8.37, dok je otvor blende 2.6, a fokus se podešava ručno preko polugice koja se nalazi na gornjoj strani projektora. Projektor ima mogućnost prednje, stražnje i stropne projekcije. Zahvaljujući ESP (Extreme Short throw Projectors) tehnologiji u stanju je prikazati sliku dijagonale između 1.02 - 3.05 m sa udaljenosti između 0.49 - 1.53 m. Upravo je ESP tehnologija najveća prednost ovog projektora, jer je pogodan za manje sobe i sve situacije u kojima želimo izbjeći da gledatelji budu između njega i plohe na koju projicira sliku. Inače, ESP (EX20 i EW25) projektore, Toshiba je predstavila u Rujnu 2007. godine.

Na stražnjoj strani projektora se nalazi sva sila priključaka, odnosno ulaza i izlaza koji daju veliku funkcionalnost ovom projektoru. Od ulaza tu su 2 x RGB (D-sub 15), RJ45, USB tip A (direktna reprodukcija JPEG i MPEG sadržaja), S-video, kompozitni video (RCA), audio (stereo mini jack), video/S-video, audio (2 x RCA L/R) i komponentni (Y/PB/PR) preko D-sub 15. Izlazi su RGB (D-sub 15) i audio (stereo mini jack). Ulazni signali koje projektor prihvaća su NTSC/PAL/SECAM, 480i, 480p, 576i, 576p, 720p, 1,080i, VGA, SVGA, XGA, SXGA, WXGA & UXGA (komprimirano) SVGA, XGA, WXGA, SXGA, UXGA (komprimirano). Na stražnjoj strani se nalazi i priključak za strujni kabel, te prekidač za paljenje uređaja. Tu je također smješten i mono zvučnik snage 1W koji će poslužiti za osnovne zvučne efekte.



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