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SvennoJ on 11 January 2013
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Mistershine said:
SvennoJ said:

It does have to be high lumens though, and 2700 is not very high for spreading it over such a big area. I use 1100 ansi lumens on a 92" screen and the room has to be almost completely dark with a good screen to project on. (no go in the living room)
If that tv in the video is 42", it is projecting at about 140", that's 2.3 times the surface area of 92", or 2500 ansi lumens to work in total darkness. That video might be unaltered, but there must be a pretty powerful projector behind that to be able to capture it on video at the same brightness as the tv with the ambient light level in that room.

Maybe they can build a cheap 480p projector with a standardized lamp for mass production. It won't look as good as in that video but should still give some nice effects.

http://www.amazon.co.uk/Portable-Multimedia-Pocket-Cinema-Projector/dp/B009SIN0I4/ref=sr_1_5?ie=UTF8&qid=1357895225&sr=8-5

Something like this would be ideal. It doesn't need to be powerful or high res to put spots/lines of colour on a wall.

That's not going to show anything on a 140" diagonal, those things are 100 lumen or less.
A low res LED projector is much better for a reasonable price. At 2000 lumens you should be able to get some decent effects at 140" diagonal.
http://www.ebay.ca/itm/HTP-HD-Projector-Model-LED-66-2000-LUMENS-Max-50000-Lamp-Hours-Support-1080p-/300816368392?pt=US_Video_Projectors&hash=item460a0d8308
480p native, 2000 lumens for $220. You only need a short throw lens to get to 140". (Those lenses aren't cheap btw)

I'm positive though that that video was shot with a 4000 lumen projector.