Comments on: Hack your rear projection TV to be bigger

By: Annmarie Spagnola

Annmarie Spagnola — Mon, 05 Oct 2009 23:39:12 +0000

Hallo, Ich habe Ihr Blog ?ber Google bei der Suche

By: dave

dave — Tue, 04 Aug 2009 01:44:53 +0000

Great Idea…but where do I find the larger screen material(s)? As I understand it, there are two screen materials used to focus the picture. Thanks.

By: TV Reviewer

TV Reviewer — Thu, 02 Jul 2009 08:33:28 +0000

I agree that brightness probably won’t be a problem — this is clearly meant for movies, which most people watch in the dark anyway.

Ingenious way to get top resolution without paying the (usual) price!

By: wallybanners

wallybanners — Wed, 01 Oct 2008 06:59:50 +0000

Great DIY Tip thanks!

By: nubie

nubie — Tue, 30 Sep 2008 18:29:51 +0000

Very cool, way to hack :)

Now to source a DLP with a cracked screen and blown bulb :)

By: Tony

Tony — Tue, 30 Sep 2008 16:30:53 +0000

You could sell the TV and buy a projector, but you wouldn’t get a 1080 capable projector for that amount of money. The cheapest 1080 projectors are really expensive. Most of the sub-$2k projectors out there can barely do 720.

I’d be interested in seeing if its possible to put in a different light source. Definitely not going to be simple and I wonder how color rendition would turn out and whether the TV offers enoguh adjustment range.

By: spagg

spagg — Tue, 30 Sep 2008 12:39:32 +0000

Where is the fun in that – i think it feels great to change things to make them better looking. Makes me feel proud!

By: rasz

rasz — Tue, 30 Sep 2008 12:12:46 +0000

would be faster to sell the TV and buy projector

By: Liam

Liam — Tue, 30 Sep 2008 11:29:04 +0000

If he doubles his source-screen distance, he’d quadruple the viewing area but quarter the brightness. It’s just a simple 1/(distance^2) relation. I’m willing to bet that this relation holds quite well.

Perceived brightness may well be a different matter entirely. This is a guess, but as a general rule human perception seems to follow log functions, so I’ll bet the screen *seems* more like 60% original brightness. Some compensation may be available through the TV’s original controls, saturation notwithstanding.

By: mirriam webster

mirriam webster — Tue, 30 Sep 2008 10:53:58 +0000

voala???

correct spelling D i c t i o n a r y

By: Grovenstien

Grovenstien — Tue, 30 Sep 2008 07:51:02 +0000

I would have thought the same projector is used in various sized rear projection tele’s so it would have an adjustable focus with is just locked off at installation. Nice hack and a great source of parts for a Multitouch table!

By: Grovenstien

Grovenstien — Tue, 30 Sep 2008 07:45:31 +0000

Oh big first surface mirror! now i know where to source one!

By: MRE

MRE — Tue, 30 Sep 2008 00:08:49 +0000

@cde – yeah, but still.. the mirror cavity is gernally not sitting open, and is not always part of the open cab/fan circulated space.
Not to mention, the occasional rugrat will get back there and put fingerprints all over it.
I`d add a thin plexy face. sure, that adds a little interface interferance, but it also makes for less mirror surface cleaning. Who knows what could happen with rugrats around (broken mirror, cola on the projector tubes, sandwiches in the VCR… ohh.. wait, that was the 80s.)

By: mike

mike — Mon, 29 Sep 2008 20:59:33 +0000

I saw a thing in a magazine article not too long ago about a teeny tiny little projector that is the size of a pack of cigarettes. The cool thing is that it uses lasers to project the image, so focusing and brightness are never issues except at longer distances.

By: cde

cde — Mon, 29 Sep 2008 20:50:51 +0000

@ Madsara: Dust should not be that big of an issue, considering most projection boxes are both open box(Not sealed) and have fans.